Showing posts with label bias against antidepressants. Show all posts
Showing posts with label bias against antidepressants. Show all posts

Tuesday, December 31, 2019

Antidepressants Are Not Miracle Drugs - They Are Also Not Tools Of The Devil





I decided to end the year on a less intense but serious note about antidepressants. I am currently working on some posts on biological psychiatry most notably on the hypothalamus. When you see that posted it will hopefully contain some licensed graphics, numerous worthwhile references, and it will be the first post on this blog where copy-paste function will be blocked.  I have seen the results of not blocking my blog content and many people pointed out that it is just copied to another site and not referenced.  In what had to be a worst case scenario, I was at a conference where an academic used my custom graphics in his PowerPoint presentation without referencing that they were from this blog.  Hopefully those days are over.

But in the meantime a few comments about the war on antidepressants which is really a war on psychiatry. There are numerous posts on this blog refuting some of the published material but I want to speak about what happens at the clinical level without all of the academic references and articles. I decided to post this because antidepressants have been heavily politicized over the years. The initial rhetoric was that psychiatrists were prescribing them because they were being corrupted by pharmaceutical companies. The next step was to suggest that antidepressants were highly toxic medications for one reason or another. When both those criticisms were obviously not valid, the next step was to suggest that antidepressants simply don’t work at all.  In social media this takes on a tone that discourages people from treatment.  Psychiatrists are shamed for prescribing these medications and patients are shamed for taking them. Why would a rational person take a medication that did not work?

There have been slight modifications along the way. A good example would be the “chemical imbalance” theory that has been heavily criticized and attributed to psychiatry despite the fact that no psychopharmacology books contain this reference and the discovery that the term is an advertising meme from the late 20th century. Some of the critics like the “critical psychiatry” movement came out with an actual position paper that proposed medications basically work because of side effects rather than any primary therapeutic effect. That is an incredible position to maintain and that may be why nobody pays attention to it. The critics of antidepressants and psychiatry are very vocal and if they are not complaining about psychiatric expertise or medications they are complaining about criticism they might receive. But the overall tone of their arguments illustrates that they have nothing positive to offer.  Many of these critics have the luxury of not treating people with severe psychiatric disorders.  In some cases that extends to denying that these disorders exist.

One of the critics complained about being “gaslighted” for some of criticisms. This is more than a little ironic for several reasons.  The standard positions of most antipsychiatrists is the very definition of gaslighting.  That position is to basically create a hostile environment that denies the legitimacy of psychiatry and psychiatric practice and treatments.  I have received hundreds of posts to this blog that never see the light of day. Some say (in many posts) that I am a hack who should not be treating patients. They claim I am an agent of the pharmaceutical industry (search all of the databases and you will see that I have not accepted as much as a nickel). They tell me that my research is poor and I have very little understanding of the literature. Some have suggested that they would like to see me physically assaulted.  One of them went so far as to hide the fact that he was a writer for a major anti-psychiatry blog until the last possible moment. I think he was really expecting that I was going to publish his post and name so that everyone on that website could have a good laugh at my expense. These critics seem to have a very thin skin and can’t take the slightest criticism for what are typically outrageous positions. 

I could quote all the evidence to the contrary hundred times but it would not do any good.  The dynamic is very similar to other antiscience arguments, like the arguments against vaccines.  The average person with a realistic concern about antidepressants should just be aware of the process at this point. There are a group of people who are out to discredit psychiatric care and medications that psychiatrists use strictly based on political agenda that has nothing to do with whether or not medications or psychiatry works.  The lesson of politics is that "the narrative" becomes the truth - particularly if one side "wins." Demonizing a perceived opponent is a common political strategy that may be amplified by social media.  This process focused on demonizing psychiatrists and the medications they prescribe can be observed in social media on a daily basis. 

There’s no better evidence that psychiatry works than the fact that we all go to work and see hundreds of thousands of people every day. Those people come back to see us because they are satisfied both with the relationship they have, the advice they get, and the fact that their treatment is effective. That includes treatment with antidepressants.  People don't take time out of their day, endure the problem of finding a psychiatrist who can see them and hassles with their insurance company, and follow treatment recommendations if the treatment is not effective.  

As I noted in the title - antidepressants are certainly not miracle drugs. About one person out of seven or eight that I see cannot tolerate selective serotonin reuptake inhibitors (SSRIs). About one person out of 15 cannot tolerate any antidepressant from any class. That fact alone points out one of the limitations of antidepressants. Additional patients will get more isolated side effects that create physical effects or affect their lifestyle and they have to make tough decisions especially if the medication is effective. They have to decide whether they want to keep taking it or not. But the clinical truth that you don't hear among the critics is that the majority of people can take an antidepressant and not get any side effects.  I know this because, I ask that specific question to every person I see who is taking a medication - every time I see them.

A more challenging clinical situation occurs when a patient asks me to start an antidepressant that they are certain has worked for them in the past and now they develop a symptom that may be a side effect that they did not have in the past. We need to figure out what is happening and what the best plan will be. The more common scenario is the person for whom the antidepressant does not work completely and we need to figure out how to get rid of their depression or anxiety.

All the negative talk about antidepressants is designed to take psychiatrists out of the equation. Nobody talks about the psychiatrist who is in the room with the patient actively working on and solving all of these problems. The problems that need to be solved from a medical and psychiatric standpoint can often make up a long list. Pre-existing medical conditions, 5-10 medications that are being taken for those conditions, drug interactions with any pre-existing conditions or medications, medication side effects, unstable medications, ECG abnormalities, medical causes of the psychiatric symptoms, neurological problems, significant renal or hepatic disease, and alcohol and substance use problems are all in that room and all need to be acted on by the psychiatrist and the patient in the room.  If somebody suggests that psychiatrists are doing less than that - take a look at the way psychiatrists are actually trained.  The ask yourself why you are not getting the whole story.

And even before we get to that point, there has to be some clarification of a diagnosis indicating that medication might be useful. There has to be a diagnostic formulation looking at how that diagnosis fits into that person’s life and conscious state. The prescription of a medication can’t be a formula based on a checklist. There are many times when a prescription medication is not the right answer. Don’t expect to hear that level of discrimination from somebody who tells you that antidepressants or psychiatrists are either generally bad or all bad.  When you hear that opinion - drill down and figure out what their conflict of interest is.  

In my current capacity, a significant number of people I see have suicidal ideation and many have attempted suicide or are actively contemplating suicide. Some have survived highly lethal suicide attempts. Most of them have depression and substance use disorders. I have to figure out the most likely diagnosis out of about 40 possibilities. In proceeding with treatment, my job is to help the person get well, recover from depression, and recover from suicidal thinking. That is a complex process and it is not just a question of prescribing medication. What is said and done in that process is not the same for any two people. I have to make sure the person is getting well and making necessary changes along the way to recover. There are many people along that path to confirm that the treatment is proceeding in a positive direction. This process is one of many leading to the demand for psychiatrists across the country. Psychiatrists have the clinical expertise to solve these problems and we are often consulted at the last possible moment after all of the other attempts have failed. 

With any luck it will be a better year ahead. I don’t expect the anti-psychiatry gaslighters to go away. I do want to reassure people that psychiatrists are result oriented and we are trained to work intensely with people to help them get better. If you see suggestions contrary to that fact - consider the source. If you see someone suggesting that they are being “gaslighted” by psychiatrists remember what I said about the posts I get here on this blog. And remember, antidepressants are just like any other medication. They don't work for everybody, but most people who can tolerate them notice a difference.  For some people the difference is life changing and it allows them to function the way they used to function. Like practically all medications, the decision to take antidepressants is a highly individual one and a decision that is not made lightly.  Most people making that decision are not making it based on what is on social media.

As professionals we take a safe recovery from mental disorders and substance use problems very seriously. 

Happy New Year!


George Dawson, MD, DFAPA





Graphics Credit:


Color gradient during the sunset in Antarctica. Vernadsky Station. Antarctic Peninsula 2008.


By Maksym Deliyergiyev from Shutterstock per their standard user agreement.



Supplementary:


Academic gaslighting?  Of course, it exists.  I realize that it is a vague and non-specific term A few examples follow from this blog.  Unfortunately, journal editors either don’t seem to get it or they are too desperate for content to care.












The Monolithic Psychiatry Card: https://real-psychiatry.blogspot.com/2015/06/the-myth-of-monolithic-psychiatry.html

The Philosophy Card - written by an expert on Foucault: https://real-psychiatry.blogspot.com/2013/02/moralizing-about-psychiatry-and-limits.html

This Supplementary section was added on 1/2/2020 at 0200.  The body of the original post is unchanged.













Thursday, June 28, 2018

The Problem of Antidepressant Discontinuation



Antidepressant discontinuation is a useful topic to discuss for a number of reasons.  First, it is a legitimate problem for a number of people who want to stop the medication and find that they can't for one reason or another.  Secondly, some of the people are unable to stop because they have discontinuation or withdrawal symptoms from the antidepressants and for some people these symptoms are extremely distressing.  In other cases the people trying to stop get recurrent symptoms of anxiety, insomnia, and depression and have to resume the medication.  Thirdly, the solutions to the problem are poorly defined.  In the US, antidepressants are prescription medications and that should mean that they are prescribed for a clear indication and carefully monitored.  Those safeguards are not clearly present any more and even if they are having the indication and carefully monitoring the medication does not guarantee that the patient will not get severe side effects or problems with discontinuation.  On a population wide basis, prescribing antidepressants for only clear cut indications will mean that the minimum number of people are affected and that an antidepressant will be stopped at the earliest sign of problems.  All of the current trends in screening for depression, encouraging treatment by nonspecialists, and limiting the availability of non-pharmacological methods for treating psychiatric and emotional problems suggests that a major cultural change would be required to reverse those trends.    Fourth, because of these problems - the antidepressant issue is an informed consent issue to patients.  In addition to warnings about the usual side effects they also need to hear about the more serious side effects including serotonin syndrome, cardiovascular side effects, possible drug interactions and withdrawal and discontinuation symptoms.  Finally, it is not clear that liberal antidepressant creates more problems than it solves.  The best example I can think of to illustrate this fact is a paper I posted here in the past showing that there was a clear trend in decreased suicide in the elderly with increased antidepressant prescribing across the entire population of Denmark.  On  clinical basis I have had conversations with hundreds of people about stopping antidepressants and the results of many of those conversations is surprising.  Although the main FDA psychiatric indications for antidepressant prescribing are mood disorders, anxiety disorders, and obsessive compulsive disorder - it is common to find people who are taking them for other reasons. Extreme irritability and anger control is one.  Needing to have a "level mood" is another.  Taking antidepressants for menstrual and menopausal mood symptoms that do not meet diagnostic criteria for major mood and anxiety disorders is another. 

The two main considerations for antidepressant discontinuation are whether the person experiences recurrent symptoms of the primary problem or specific discontinuation or withdrawal symptoms or a combination of both. 

A few addition points about antidepressant withdrawal.  The first case in the medical literature was reported for tricyclic antidepressants in 1959 (1) and the first review in 1993 (2).  The symptoms were also described in the first edition of a major psychopharmacology text (2):

"There is no withdrawal problems with the TCAs of the type seen with narcotics, alcohol, or sedatives.  Instead, abrupt discontinuation of 150-300 mg/day or more of a tricyclic, especially after 3 or more months of treatment can induce autonomic rebound (ie, gastrointestinal disturbances, autonomic symptoms, anxiety, agitation, and disrupted sleep)."  p 276.

Gradual taper rather than abrupt discontinuation was recommended.  The issue of rebound from REM suppression and nightmares or intensification of dreaming was also discussed.

For the sake of brevity, I am going to discuss a recent trial of antidepressant discontinuation (4), what is wrong with that trial, and how to improve the state of affairs in the future.  For some reason, I could not find this study indexed by the National Library of Medicine.  Full text is accessible by the DOI number.

This is a study of an attempt to withdraw patients from antidepressants with success in doing that designed as the primary end point - further defined as no antidepressant use in 6 months and no depression or anxiety by a standard rating at 1 year follow up.  The patients were selected from 45 primary care practices across the Netherlands between February 2010 and March 2013.  The algorithm for patients selection in each stage with the resulting numbers are available in diagram form in the body of the paper.  Anyone not meeting criteria for maintenance anti-depressant or anxiolytic treatment were identified as possible candidates for the study.  Appropriate use of antidepressants for depression and anxiety was defined as a history of recurrent depression [≥3 episodes] and/or a recurrent psychiatric disorder with at least two relapses after antidepressant discontinuation.

6442 long-term antidepressant users were identified in these primary care settings.  2411 (37%) were eligible with that determination made by their primary care MD. 358/2411 (15%) consented to participate and 146 were included in this study.

The specific intervention is hard to get at in the description given.  For the intervention group a patient specific letter was sent to the general practitioner with the recommendation to taper the antidepressant. Antidepressant tapering instructions, antidepressant discontinuation symptoms, and the recommendation for slow tapering were all included.  The GP discussed this with the patient and then sent a response to the research team on whether or not the patient would comply with the recommendation.  Reasons for not complying were requested.  For the control group, patients continued their usual care and their GPs were unaware of their participation in the study.  In US studies this would be the treatment as usual group.

34/70 rejected the intervention citing fear of relapse or recurrence as the primary reason.  That is interesting giving the inclusion criteria.  Is it possible that disorder severity or anxiety or depressive subtypes were perceived as more severe by the patient than the recorded primary care diagnosis? None of those patients cited antidepressant discontinuation symptoms as a reason.

Only 4 (6%) patients in the intervention group and 6 (8%) patients in the control group were able to successfully stop antidepressants.  There was a slightly higher relapse rate in the intervention (18/70)   versus the control group (10/76).  No other variables other than duration of antidepressant (5.7 years versus 9.6 years) were significant in who could discontinue the antidepressant and who could not.

In their discussion the authors comment on a higher relapse rate in the intervention group that was not associated with antidepressant discontinuation.  They attribute it to anxiety about wanting to comply with the recommendation but not being motivated to do it.  I think that any anxiety about the recommendation is more likely due to the fact that the recommendation is coming from a source that is not their primary care physician.  Most people in primary care with longstanding relationships with their physicians are there for a reason.  Taking a recommendation in opposition to their GP would be highly problematic for many.  They cite several other reasons among them a poorly done meta-analysis of antidepressant trials suggesting a large placebo effect.  In fact, all of these meta-analyses are significantly flawed based on the included studies.  But more on how to sort that out below.   

I am going to avoid constructing my own antidepressant discontinuation checklist but plan on that in the next several days.  My extensive clinical experience and the literature lead me to the following conclusions:

1.  Expose only the subpopulation who needs antidepressants to them:

This is easier said than done because of the literature on under diagnosis of depression in primary care settings, the literature (and lack of evidence supported guidelines) on screening everyone for depression, the new collaborative care initiative encouraging the use of a checklist to diagnose and treat depression, and the massive bureaucratic interventions to encourage screening and treatment with medication.  Like opioids - primary care physicians were scapegoated for not recognizing and treating depression.  Now both of the primary care professional organizations have their own depression treatment guidelines and these physicians are criticized for overprescribing antidepressants.  Things might go a lot better if the politics was wrung out of medicine.

2.  Recognize that some patients have severe discontinuation effects: 

There is 60 years of literature on this topic, we have all seen it, and it should be a given.  It should be addressed even if there is not perfect research on how to help these people.  I have said it in the past and will say again - I have treated people with severe discontinuation symptoms and helped them stop the medication.  Some syndromes are much more complicated than others - like SSRI withdrawal that has an anticholinergic component.  As I have said in the past - I just don't prescribe some of these medications (paroxetine) and have not in decades.  I would never have prescribed venlafaxine again if they had not invented an extended release version and found it was very useful for people who can't tolerate any SSRIs - but that does not mean that there aren't people out there who don't get severe discontinuation symptoms because of venlafaxine XR.  All of this is an informed consent issue and you can't have that discussion seeing people very 10 minutes and handing them a prescription.

I will say that the majority of people that all psychiatrists treat routinely go on and off antidepressants without problems.  It is so commonplace that many health care companies have systems that send the physician a letter if the patient has not picked up their antidepressant prescription.  That is very common and typically because patients have reservations about starting the medication or how the appointment went.

3.  Study the problem in a realistic setting: 

The study I discussed above was destined to fail. A more realistic study should reflect the clinical reality that every psychiatrist knows.  Instead of an intervention telling people when to stop, the intervention could look at all episodes of antidepressant discontinuation in a health care system.  Various strategies could be used and data on the reason for stopping and any discontinuation symptoms could be gathered in a systematic way.  There are several statistical models that can be applied to multiple episodes across fewer patients.

I would suggest that the intervention not be conducted by the physician who prescribed the original treatment because of the aforementioned conflict of interest.

As in antidepressant trials, the nocebo effect is significant and needs to be studied in discontinuation.  In other words, if a person is told that the antidepressant is being discontinued and they are given the exact same dose of the same antidepressant will they develop symptoms of discontinuation?

There is also a lot to be said for an unblinded study of people who are motivated to just get off the antidepressants with a standard protocol. I would not mind conducting that study myself and also adding a component to see, if the success of people who are highly motivated to stop could be predicted.

4.  Despite the evidence-based crowd, the experts need to be heard: 

Like many other psychiatrists, I have seen severe antidepressant discontinuation symptoms, but have been able to get the patient off of the antidepressant.  The idea that there are people who cannot get off these medications and they need evidence to get off the medications is a circular argument.  The evidence is out there, and the experts should write a consensus statement.  That should be the basis for further trials and those trials should employ psychiatrists who know how to do this.  If there are that many people with the problem - it should be easy for any University department to recruit them and study them in detail in the hope that they can successfully get off the medication.

5.  The issue is important in everyday clinical practice:

The best illustration is changing antidepressants.  There are three methods, abrupt discontinuation and starting the new one, gradual taper and start, or taper with cross titration.  The majority of people I see can tell me if they have ever had discontinuation symptoms when they stopped or ran out of the antidepressant that we are changing. That turns out to be a good predictor of who can just stop the antidepressant and start a new one the next day.

That concludes my brief discussion of the problem and what I think can be done about it.  One thing is for sure - political discussions of this issue fail to advance getting the best care to the maximum number of people - whether that is a bitter discussion of how antidepressants are poison and nobody should take them to how they should be casually prescribed as part of a screening process.



George Dawson, MD, DFAPA



References:

1: Mann AM, MacPherson AS. Clinical experience with imipramine (G22355) in the treatment of depression. Can Psychiatr Assoc J. 1959 Jan;4(1):38-47. PubMed PMID: 13629473.

2:  Garner EM, Kelly MW, Thompson DF. Tricyclic antidepressant withdrawal syndrome. Ann Pharmacother. 1993 Sep;27(9):1068-72. Review. PubMed PMID: 8219442.

3:  Philip G. Janicak, John M. Davis, Sheldon H. Preskorn, Frank J. Ayd.  Principles and Practice of Psychopharmacotherapy.  Williams and Wilkens, Baltimore Maryland, 1993.

4:  Eveleigh R, Muskens E, Lucassen P, Verhaak P, Spijker J,  van Weel C,  Voshaar RO, Speckens A.   Withdrawal of unnecessary antidepressant medication: a randomised controlled trial in primary care.  BJGP Open 2018; 1 (4): bjgpopen17X101265.  DOI: 10.3399/bjgpopen17X10126


Supplementary:

Reviews of antidepressant discontinuation syndrome. Link


Polling Question:

I thought I would add a polling question to this post for any physicians out there treating depression.  One of the commonest encounters that I have had due to this blog have been people who claim:

1.  Severe antidepressant discontinuation/withdrawal.
2.  Associated long term conditions with withdrawal.
3.  A complete inability to stop antidepressants.
4.  Extraordinary measures needed to stop antidepressants - like breaking the capsule or grinding up the tablet and reducing the dose by 1 mg amounts.

I don't doubt #1 at all because I have seen it and treated it.  In the case of #2, the only medication I have seen this occur with was beta blockers - metoprolol  specifically.  In that case the patient was taking the medication for blood pressure control and developed severe panic attacks and associated tachycardia and insomnia trying to taper and discontinue the medication.  There was no previous history of anxiety.

I am interested in what physicians have directly observed in these areas.




Saturday, February 8, 2014

An Obvious Response to "Psychiatry Gone Astray"

David Healy has what I consider to be inconsistent viewpoints.  I have previously critiqued his viewpoint on the "addictive" qualities of antidepressants (they clearly are not) and whole heartedly endorsed his position that pills don't treat depression - psychiatrists do.   He recently posted what I would refer to as a screed written by a Danish internist on (what else?) all of the problems with psychiatry.  The obvious lack of symmetry here is striking.  You won't find a psychiatrist anywhere posting a similar piece about internal medicine, even though it could be easily done and would probably be more evidence based.  In that regard this physician has slightly more credibility that the typical layperson screed against psychiatry - but not much more.  What follows is my point by point refutation of the "myths".  They are mythical in that they are from the mind of the author - I know of no psychiatrist who thinks this way.

Myth 1: Your disease is caused by a chemical imbalance in the brain -

This is a red herring that is frequently marched out in the media and often connected with a conspiracy theory that psychiatrists are tools of pharmaceutical companies who probably originated this idea.  What are the facts?  Psychiatry has at least a century old tradition of researching all possible etiologies for mental health problems.  Psychiatrists were among the first people to look at the effects of social deprivation in orphanages, the effects of acute grief and loss, the effects of psychological trauma, the effects of a full gamut of psychotherapies, and the effects of family and environment.  The biopsychosocial formulation of Engel in 1977 was an advance detailed in Science magazine.  Any comprehensive psychiatric formulation covers all possible etiologies (as an obvious example see Systematic Psychiatric Evaluation by Chisolm and Lyketsos).  In addition there are many clinical methods where the diagnostic formulation is essential for the treatment plan for psychotherapy based treatment.  By definition that formulation would have few biological references.  So the alleged myth fails at the clinical level.

It fails even worse at the neurobiological level.  Chemical imbalance rhetoric always seems to ignore one huge fact and that is Eric Kandel's classic article on plasticity in 1979 in the New England Journal of Medicine.  Certainly any psychiatrist who saw that article has never bought into a "chemical imbalance" idea and I can recall mocking the idea when pharmaceutical companies presented it to my colleagues and I in medical school.  So why don't we hear: "Your disease is caused by plasticity?"  Probably because they gave Eric Kandel the Nobel Prize for it.

Myth 2: It’s no problem to stop treatment with antidepressants - 

Another red herring.  I have trained psychiatrists, internists, family physicians and medical students and taught them psychopharmacology.  A general principle of psychopharmacology is no abrupt changes in therapy and most drug prescribing information suggests that.  I routinely address this issue as part of informed consent and advise people that there may be difficulty discontinuing antidepressants and describe the potential symptoms.  This criticism from an internist has a certain degree of asymmetry to it.  Certainly there are medications prescribed by internists that cause both acute withdrawal and discontinuation symptoms.  My impression is that many adults who see internists are basically going along with life long therapy in many cases for conditions that could be treated by psychosocial measures.  It is quite easy to criticize if you are never faced with the prospect of discontinuing therapy.

Myth 3: Psychotropic Drugs for Mental Illness are like Insulin for Diabetes -

The author here conflates the certainty of insulin deficiency with pathophysiological certainty in medicine and how that correlates with prescribed treatment.  Certainly that is not the case in diabetes mellitus Type II or the recent example I provided with an asthma exacerbation.  In fact the pathophysiology in those heterogenous groups are about as accurate as endophenotypes in psychiatry.  Am I getting prednisone for my asthma because I am deficient in prednisone?  Am I getting it because of some specific pathophysiological mechanism rather than a shotgun approach to shut down all of my inflammatory signalling?  Was predisone prescribed only based on the purported pathophysiological mechanisms?  The answer to all three questions is - of course not.  If the author is really concerned about medication side effects, I can't think of any psychiatric medication that is the equal of prednisone but I am certainly not going to suggest that it should not be prescribed.

Myth 4: Psychotropic drugs reduce the number of chronically ill patients - 

I don't know of anyone who has actually suggested this and from an internal medicine perspective does it make sense?  Here are a few additional comparison statistics on asthma and hypertension for example.  There is a 10% prevalence of asthma in the developed world.  Only 1 in 7 has their symptoms in good control.  People continue to die of asthma possible as many as 1/250 deaths world wide.  In the case of hypertension, 31% of Americans have it and another 30% have prehypertension.  Only 47% have adequate blood pressure control.  There is really not much evidence that medications prescribed by internists are much more effective than what he refers to as "psychotropic drugs" and that is borne out in a previous analysis and my own recent experience with the health care system.

I find this argument also demeaning to anyone with a severe psychiatric disorder who is interested in staying out of hospitals and being able to function or trying to avoid a suicide attempt.  Being able to adhere to that kind of plan depends on multiple variables including taking medications.  It is reckless to suggest otherwise and any psychiatrist knows about severe adverse outcomes that have occurred as a result of stopping a medication.  The author conveniently plugs his book at this point.

Myth 5: Happy pills do not cause suicide in children and adolescents -

The author reveals his antipathy to medication used by psychiatrists here by referring to antidepressants as "happy pills."  I know of no psychiatrist who I have ever met who calls antidepressants "happy pills" and in fact most of us are engaged in trying to find an effective medication with minimal side effects.  David Healy himself describes this as one of the primary functions of psychiatrists.  On the actual suicide issue, psychiatrists goal is preventing suicide.  Suicide is a possible outcome of all clinical encounters and psychiatrists follow this symptom closely.

Saying that happy pills are a cause of suicide is the equivalent of saying that "sugar medicine" (insulin) is a cause of hypoglycemia that harms children and therefore it should not be prescribed.


Myth 6: Happy pills have no side effects -

The author has one legitimate point in that depression screening is not a good idea but in his zeal to criticize everything psychiatric he has to whip that into "happy pills have no side effects".  Of course they do and I have elaborated my clinical method on how to approach that in detail.  He goes on to make an anecdotal argument about single study results versus "what the company says."  In fact, companies have to rigorously record side effects in clinical trials and all of that is recorded in the FDA prescribing information.  Looking at standard FDA reported data for sexual side effects (his example) the number for all SSRI antidepressants is   9-37% and not the 5% figure suggested by the author.  (see page 1684 of Drugs Facts and Comparisons 2013).

Myth 7: Happy pills are not addictive -

This is interesting because of David Healy's confusion on this subject.  It indicates a serious lack of knowledge about addiction because there are no behavioral features of antidepressant medications or animal models that describe these drugs as addictive.  They have no street value and they will not make you high.  The authors comparison to amphetamine is completely off the mark and consistent with his general lack of knowledge of addiction.

Myth 8: The prevalence of depression has increased a lot -

He has to attach epidemiological data on depression in order to attack the argument that increasing antidepressant use is not a problem because of the increasing prevalence.  He offers a sarcastic comment as evidence and misses both the issue of why antidepressant prescriptions are increasing and the real data on the prevalence of depression.  Even if his argument is correct, since 80% of antidepressants are prescribed by primary care physicians wouldn't this be "Primary care gone astray?"

On the epidemiology issue I would encourage a quick look at an actual text on the issue like Textbook of Psychiatric Epidemiology, 3rd Edition.(p 292)  The authors look at 30 national and international studies and do not conclude that there is an increasing prevalence of depression, but that variation is likely due to methodological differences and sociocultural factors. 

Myth 9: The main problem is not overtreatment, but undertreatment -

More sarcasm as evidence here.  I debunked the arithmetic used in this argument in an earlier Washington Post piece.  This is also a huge disservice to people with severe mental illness and addictions in this country who have been thrown out of treatment, received useless hospital treatments, and restricted from medications by managed care.  The primary prescribers of antidepressants (by far) are primary care physicians and it is certainly possible that they are prescribing too many antidepressants.  But don't blame psychiatrists for that.

Myth 10: Antipsychotics prevent brain damage -

More rhetoric.  In this case he is using a research hypothesis and suggesting that this has something to do with clinical psychiatry.  Despite significant obstacles, psychiatric research at the neurobiological level continues and studies on imaging are a large part of that process.  One of the major areas has to do with brain volumes and their implications.  The author presumes he knows what the outcome of that research will be.  He also talks about antipsychotic medication with the arrogance of a person who does not have to treat acutely psychotic people and incredibly talks about these drugs killing people.  In fact, the number one killer of people with severe mental illnesses is tobacco smoke and there is ample evidence that they get suboptimal primary care.

At the end of this refutation what have we learned?  I am more skeptical than ever of David Healy and his web site.  I thought he did good work with his investigation of SSRIs and his analysis of the role of psychiatrists as opposed to medications was accurate.  But I can't ignore the fact that he places this screed on his web site.  He also lists  himself as a "scientist" and this screed contains surprisingly little science.  It is essentially all rhetoric and politics.

It is one thing to ridicule psychiatrists but the obvious concern here is that it stigmatizes people who need treatment especially treatment with medication who are actively denied treatment in the U.S. on an ongoing basis.  The author here uses a familiar dynamic that I have described in the past. He suggests that internists (like the author here) have clearly superior methods or pathophysiological mechanisms than psychiatrists but they don't.  In terms of the accusation of overprescribing, it is well know in the US that the 20 year CDC initiative to control antibiotic overprescribing is a failure.  Some authors believe that this heralds a new "post antibiotic era" where untreatable infections will become the rule.

It seems to me that internists have enough to focus on in their own specialty before criticizing an area that they obviously know so little about.  It also seems that if you claim your web site is scientific, you should probably put a little science on it.  The author here also states that he is affiliated with the Nordic Cochrane Center and I think that anyone who considers the output of that Institute should consider what he has written here and the relevant conflict of interest issues.

George Dawson, MD, DFAPA

Supplementary 1: About a month after this post was completed Ronald Pies, MD came out with an article in the Psychiatric Times entitled Nuances, Narratives, and the “Chemical Imbalance” Debate.  He presents very similar arguments to the ones presented here and concludes that it is time for the critics using this false argument to give it up.  I also like his characterization of "a recent online polemic posing as investigative journalism" and how the "chemical imbalance hypothesis" is used to mischaracterize psychiatry.  He also provides a link to a 2011 article that he wrote that contain the following quote:

"I am not one who easily loses his temper, but I confess to experiencing markedly increased limbic activity whenever I hear someone proclaim, “Psychiatrists think all mental disorders are due to a chemical imbalance!” In the past 30 years, I don’t believe I have ever heard a knowledgeable, well-trained psychiatrist make such a preposterous claim, except perhaps to mock it. "

Readers of this blog have heard seen me say this many times before.  It is good to see these opinions being offered in the more mainstream media.  It is also good to see Dr. Pies taking calling a critic on what is rhetoric rather than reality.  Well done.

Supplementary 2:  I have an updated post on the issue of how medical syndromes and psychiatric syndromes are far more similar than different and how there is a complete lack of criticism relative to psychiatry. (added on September 3, 2015).




Tuesday, December 18, 2012

Homicide Debate Goes Further Off the Rails

Apparently broadcast news is about as reliable as the Internet these days.  I was watching an "expert" on the weekend discuss the connection between homicide and antidepressant medications.  He apparently believed that there was one.  I understand that Sanjay Gupta made a similar comment today on CNN.  The misinformation is flying out there.  There are several political interests that would like that statement to be true and they appear to be out in full force. What is the short answer to the association between antidepressants and homicide?  Who can you believe?

Well there is always the scientific approach and a review of the medical literature.  Admittedly the literature is a lot drier and less entertaining than Dr. Gupta.

There is also simple arithmetic   The American media like to give the impression that violent crime and homicide are at epidemic levels.  It is always a shock when people discover that in fact we are at a 30 year low:































The homicide rate has actually declined from 10.2 per 100,000 in 1980 to 5.0 per 100,000 in 2009.  What are the odds of that happening if a major new cause of homicide is being added at the same time (namely antidepressants).  How does that compare with antidepressant use?  A recent study estimated that from 1996 to 2005, the number of Americans older than 6 years of age in surveyed households who received at least one antidepressant in the year studies increased from 5.84% in 1996 to 10.12% in 2005.  From the table there was a 24% reduction in the homicide rate during a time that antidepressant use nearly doubled.  One in ten Americans received an antidepressant prescription   The authors of this study noted this trend was broad based and correlated with a lower percentage of people receiving psychotherapy.

But what does that tell us about the observation that antidepressants cause homicide?  Technically there is no current way to demonstrate causality from a negative correlation between homicide rates and the rate of people taking antidepressants.  A large scale significant negative correlation between antidepressant use and lethal violence over a 15 year period has already been reported in the Netherlands.

What about the commentator suggesting that the toxicology of homicide perpetrators shows that they can have psychiatric drugs present that explain their homicidal behavior.  In fact, a study looking at that issue showed that 2.4% of 127 murder-suicide perpetrators had toxicology that was positive for antidepressants.  That is a lower than expected rate of antidepressant use than in the general population.   In a study of elderly spousal homicide-suicide perpetrators, depression was seen as an antecedent to this act but none of the perpetrators tested positive for antidepressants.

Given these observations any claim that antidepressant or any psychiatric drug causes homicidal behavior needs to be backed up with some hard data.  I don't mean a series of cases reported by somebody to make a point and I don't mean a legal decision where lawyers and judges can pretend that scientific data do not exist and make a decision about what they hear in a court room.  I also do not mean listening to somebody claim that we will never know the real relationship until we conduct "prospective double blind placebo controlled studies" of homicidality as a medication side effect.  If it isn't obvious, that study would by definition be unethical and would not pass the scrutiny of any human subjects committee.

Anyone with potential homicidal thinking needs close supervision and treatment.  They may need inpatient treatment in a unit that specialized in treating homicidal thinking and behavior.  Any clinician working in these settings will tell you that the people being treated generally come in with aggressive and violent thoughts and behavior before they take any medication.  If they have positive toxicology associated with homicidal thinking it is generally alcohol or an illicit drug like cocaine or methamphetamine.  Anyone with this problem also needs close monitoring and management of medication side effects.  Antidepressants can cause agitation and restlessness.  There are some people who do not benefit from antidepressants.  In the case of persons with the potential for aggression and suicide the medication response may need to be determined in a controlled environment before they can be safely treated.  Like all medications antidepressants are not perfect medications and they need to be administered by an expert who can provide effective treatment while managing and eliminating any potential drug side effects.

George Dawson, MD, DFAPA

Wednesday, September 26, 2012

Why antidepressants are not addictive


I recently noticed that a blogger posted his theory on the addictive properties of antidepressants. He pointed out that people get "psychologically addicted" and that using the term "addiction" for physical addiction seemed too restrictive. His supporting evidence is a newspaper article about how Glaxo Smith Kline dropped its claim on a patient information pamphlet for paroxetine saying that the drug was "not addictive".  David Healy is quoted as saying "If there is withdrawal, then there is physical dependence. There will be some people who will never be able to halt this drug, there will be some for whom halting will not be awfully difficult and some for whom it is a real issue". The article goes on to say that although SSRIs are not like opiates they are "more comparable to the benzodiazepines such as diazepam, which is now prescribed only with great caution because of withdrawal problems".

Working in the addiction field this entire line of thinking is rhetorical. There is significant psychiatric comorbidity in people with addictions with anywhere from 40-75% having co-occurring disorders. Most of those co-occurring disorders are anxiety disorders and depression and they are well known triggers for relapse as well as initiating drug and alcohol use in the first place. Contrary to public denial,  addictive disorders have huge liabilities in terms of morbidity and they are often lethal illnesses.  My goal is to reduce the risk of relapse by treating the co-occurring disorder while the person is being treated for addiction. SSRI medications are one of the mainstays of treating anxiety and depression these days. They are effective medications. I would not be prescribing them if they caused "psychological addiction". Furthermore, many treatment programs for addiction teach the concept of cross addiction and nobody studying that concept would want to take an SSRI if it caused any kind of addiction.

A better starting point would be to look at more comprehensive definition of what an addiction is. That starting point would be the October 2011 definition issued by the American Society of Addiction Medicine.  Paragraph 2 of the short definition will suffice and reading those four lines should make it very clear that the use of antidepressant medications does not lead to addiction. The real hallmark of addictions is uncontrolled use and there is no evidence that modern antidepressants are used in an uncontrolled manner.  Additional evidence is that antidepressants have absolutely no street value and therefore are in the majority of 34 million chemical compounds listed in Chem Abstracts of which only about 322 are addicting.

If your doctor has recommended that you take an antidepressant medication certainly be aware of the fact that there may be discontinuation symptoms. Discontinuation symptoms are not an addiction.  Needing to take an antidepressant for a chronic mood or anxiety disorder is not an addiction.  Contrary to Dr. Healy's opinion there are a number of nonpsychiatric medications can be discontinued and cause severe discontinuation symptoms.  The term "physical dependence" suggests an addiction or the inappropriate use of a potentially addicting drug where in fact that is not the case with antidepressants.  Comparing antidepressants to other clearly addictive compounds like benzodiazepines or opioids is not an accurate comparison across any dimension.  I agree that any person considering an antidepressant drug needs to be aware of the fact that mild to moderate symptoms can respond to psychotherapy as well as medication.  ANY medication can lead to rare but very serious complications.  Any person considering treatment with medications needs to be working with a physician who is skilled in the use of these medications and who can address any potential side effects.  My personal experience in treating people who have severe anxiety and depression is that they reach a point that anyone with a severe chronic illness reaches in making a decision about medication. That point generally involves asking themselves: "What else am I going to do?".

As physicians we can never minimize the importance of that question.