September 08, 2009

Study Examines Emotional Blunting Of SSRIs

A new study in the British Journal of Psychiatry aims to understand the emotional side effects--ie, the infamous blunting effect--of taking SSRIs. Many in psychiatry and the mental health industry have long downplayed the stoned effect SSRIs (and other types of anti-depressants) can cause, so it's refreshing to see the phenomenon examined in a leading psych journal.

The study was actually a survey underwritten by the French pharma company Servier. Unfortunately, I don't have access to the full study, which concludes:

"Emotional side-effects of SSRIs are a robust phenomenon, prominent in some people’s thoughts about their medication, having a demonstrable impact on their functioning and playing a role in their decision-making about antidepressant adherence."

No kidding. Study findings are further described by the blog psychiatryupdate.com.au:

"Patients should be warned about emotional side effects of antidepressants when they start treatment, British psychiatrists suggest. The qualitative study of patients taking SSRIs found that the majority of patients experienced a reduction in positive and negative emotions, emotional detachment, changed personality and a feeling of indifference. Most described a general reduction in the intensity of emotions, so that all their emotions felt flattened or evened out. Others felt they experienced their emotions as thoughts rather than feelings. Most participants described feeling emotionally detached or disconnected and attributed this to their SSRI. This emotional detachment sometimes extended to a detachment from other people. Specifically, they felt reduced sympathy and empathy and a sense of detachment during social interactions. Almost all participants described not caring about things that used to matter to them, and some felt that their personality had changed in some way."

Ah, how well I remember the detachment I experienced on Prozac. When I began taking the drug in March 1990, my then-psychiatrist had me check in with him by phone a week later. I cannot remember what I told him, but he said to me, "If you feel as if your personality is changing, don't think about it too much. It's still really you."

The next summer I went to an opening night party for a musical that the big theatre I worked at in San Diego had just revived (and would later continue to Broadway). It was a wild party and several of the women in the cast were openly hitting on me. I was too zonked on Procaz--too removed--to care and went home alone (what I wouldn't give to have that night back, sans Prozac). It was a problem I fought with other anti-depressants as well, especially Zoloft and Wellbutrin, and I know it's a very tricky problem for many patients.

While I don't think the BJP study breaks any new ground, it's nice to see some psych researchers being publicly honest.

Posted by Philip Dawdy at September 8, 2009 12:03 AM
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These "personality changes" on Prozac can sometimes turn into tragedies.

Here is a case reported today from SSRI Stories of a man who was given Prozac when he actually had Hashimoto's Thyroiditis. Over a period of almost two years, while on the Prozac, his personality changed and he eventually died from a bizarre action.

Here is the story:

http://www.ssristories.com/show.php?item=3606

Paragraph 14 reads: "In January 2008, he saw Dr Francis Roberson, of the Ridgeway Medical Practice in Plympton, Plymouth, complaining of anxiety and panic attacks. He was prescribed anti-depressant drugs."

"Later, Mathew saw Dr Stephen Robinson at the same medical practice, and was prescribed the anti-depressant fluoextine [Prozac] as the original prescription was causing unpleasant side-effects and had done little to ease his anxiety."

Paragraphs 21 through 24 read: "Mr Swan, of Tern Gardens, Plympton, Plymouth, said he noticed a change in Mathew's behaviour from early in 2008."

"He became more distant, was fidgety and restless and would fall asleep suddenly. Mr Swan said he also witnessed Mathew suffer a panic attack in a bank queue."

"He said Mathew also became disillusioned with his work that he had previously loved, and had various run-ins with colleagues."

This, said Mr Swan, was totally out of character.

http://www.thisisplymouth.co.uk/news/Plymouth-man-died-inhaling-aerosol-gases/article-1320479-detail/article.html

Plymouth man died after inhaling aerosol gases
Tuesday, September 08, 2009, 11:45

Posted by: Rosie at September 8, 2009 05:06 PM

Servier makes Stablon, which acts as the opposite of SSRIs. Is that the reason for the study?

Posted by: alex at September 8, 2009 06:21 PM

That paper was written as a marketing tool for Agomelatine, known by the brand names VALDOXAN/THYMANAX in Europe. That's a low-efficacy, but liver-toxic antidepressant which finally got EU approval earlier this year after failing in 2006. It was launched in April 2009 in Germany and later in the UK and is soon to be launched in other EU countries.

It failed in all but one of the active-controlled efficacy studies, and the effect size against placebo is less than 0.18 (I was able to calculate it from alternate sources, Servier is hiding key facts carefully). So that's only half of the usual SSRI/SNRI effect size and they have to go after weaknesses of other antidepressants to get some market share.


By the way, the already well-known liver toxicity of Agomelatine makes it obsolete. The EU approval assessment report describes several serious hepatic AEs, among them cytolytic hepatitis - while less than 4000 people took Agomelatine in the trials, mostly for short periods of time. So it does not seem like a very rare phenomenon. That's a potentially deadly side effect the SSRIs are lacking.

The good news for US citizens is that Agomelatine obviously failed in all of the US phase III trials conducted by Servier's licensee Novartis, so the FDA application is delayed at least until 2012, which means a market entry in 2014, if it comes at all.

Sincerely
-PhilRS.

Posted by: PhilRS at September 9, 2009 02:51 AM

Excellent piece of news by PhilRS. Thank you.

Posted by: alex at September 9, 2009 10:33 AM

"It was a wild party and several of the women in the cast were openly hitting on me. I was too zonked on Procaz [sic] -- too removed -- to care and went home alone."

Look at it this way, with Prozac, even if you didn't go home alone, nothing would have happened anyway. :)

Posted by: The Visitor at September 10, 2009 01:00 PM

This happened to me on abilify. I assumed it was from the zombification of being on an antipsychotic, but perhaps it was the antidepressant qualities of the medication?

I would assume the flatness, as well as the sexual dysfunction, is related to dopamine/catecholamine suppression secondary to unnatural levels of serotonin being prevented from being eliminated by your brain.

I can't stand the feeling of numbness and I have no idea why so many people seem to abuse such numbing / sedating medications as benzodiazepines and SSRIs. I don't want to feel nothing, I want to feel better.

Posted by: noone at September 13, 2009 12:17 AM
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