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Acetaminophen Reduces Both Pain and Pleasure, Study Finds

An anonymous reader writes: Researchers studying the commonly used pain reliever acetaminophen found it has a previously unknown side effect: It blunts positive emotions (abstract). Acetaminophen, the main ingredient in the over-the-counter pain reliever Tylenol, has been in use for more than 70 years in the United States, but this is the first time that this side effect has been documented.

16 of 187 comments (clear)

  1. Headache by irrational_design · · Score: 5, Funny

    There is surely a joke about "Not tonight dear, I have a headache" here somewhere.

    1. Re:Headache by JanneM · · Score: 4, Funny

      "Not tonight dear, I don't have a headache"?

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    2. Re:Headache by kuzb · · Score: 5, Funny

      The most common problem here is that men open with the wrong question.

      "Would you like some Aspirin, dear?"

      "No, I don't have a headache"

      "Eeeexcellent"

      --
      BeauHD. Worst editor since kdawson.
  2. Tradeoffs by Tablizer · · Score: 5, Interesting

    Perhaps this is why they are sold over the counter. If they didn't also deaden pleasure, they may otherwise be too addictive to be allowed over the counter. To be non-addictive, they may have to reduce pleasure to compensate for reduced pain. They could be (relatively) non-addictive because the overall affect averages out to neutral feelings so that a "pill=good" feedback cycle is not produced in the brain.

    1. Re:Tradeoffs by rtb61 · · Score: 4, Interesting

      Yep, because feeling good via any other means than mass consumption is bad. Although the principles mass consumption are very bad psychologically and do drive a need for feel better drugs. Mass consumption is also very bad for the environment, so what exactly are we doing by favouring it of simpler less environmentally taxing feel good methods, especially when the need for the feel good methods is driven by the feel bad nature of mass consumption ie you are not consuming enough so the engines of mass consumption purposefully sets out to make you feel bad in you failure to consume, which you can only alleviate via consuming more and more and more. The feedback cycle on mass consumption seems to be far worse all around, individually and environmentally.

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    2. Re:Tradeoffs by whoever57 · · Score: 4, Funny

      That should be the next 'go back in time' movie, send the Puritans to colonize Krakatoa and let the good-timing criminals colonize America

      We know where that leads: Australia.

      --
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  3. It's true! by slashmydots · · Score: 4, Funny

    I took some Tylenol this morning for a headache and when I showed up, the support tickets were still bullshit, someone still claims I didn't fix something correctly, and I still hate my job and everyone there. Now I know why :P

  4. = paracetamol by ebcdic · · Score: 5, Informative

    Most of the world calls this drug paracetamol.

    1. Re:= paracetamol by mjwx · · Score: 4, Informative

      are you sure not Tylenol? also Panadol, Mapap, Tempra, Feverall, Ofirmev, Acephen, Mejoralito, Xl-dol, Bf-paradac, Aypanal, Aphen, Nortemp, Apap, Ringl

      Paracetamol == drug name.

      Panadol == brand name.

      I never ask for a pain reliever by it's brand name as brand name pain killers are more expensive than generics and the generics are just as effective.

      --
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    2. Re:= paracetamol by mjwx · · Score: 4, Informative

      Before dispensing pharmaceutical or medical advice please be aware of the limitations of what you say.

      You really need to start taking your own advice.

      Your sources come from brand name manufacturers. Of course they're going to claim generics dont work as well.

      The FDA and it's counterparts in every other western country has a requirement that all generic pharmaceuticals are as safe and effective as the brand name pharmaceuticals they're competing against.

      Studies have shown that generics are not only bioequivalent, but the lower cost leads to better adherence (I.E. patients "forget" to take the brand name medication more often).

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      Calling someone a "hater" only means you can not rationally rebut their argument.
    3. Re:= paracetamol by Malc · · Score: 5, Informative

      Growing up in the UK, I'd never heard of Tylenol until I moved to Canada as an adult. You occasionally hear it on American TV shows these days, but unless you know what the characters are referring to, it will just pass most people by. Even "acetaminophen" is an unknown term in the UK, it's always just "paracetamol"

      Tylenol is most definitely a N. American thing that nobody else knows about. Panadol seems to be the generic antipodean headache drug - I know this because my wife is Aussie and after six years in London she's still confusing people by saying "panadol" instead of "paracetamol" :)

  5. Re:Zoloft is a 1000 times worse by ProzacPatient · · Score: 4, Insightful

    I had depression in college. They put me on Zoloft. It makes your head feel like its in a cave. While I'm sure the intent is to make sure your lows are less, it also makes your highs less. How was I supposed to get undepressed if I can experience as much happiness as before? I guess its for people who experience lows way more often than they experience highs.

    How long were you on Zoloft? Sometimes the first few weeks can have very strange side effects that will diminish over time but on the other hand everyone's chemistry is different and perhaps Sertraline just isn't as compatible with your body as much as other people's bodies. Sometimes Prozac will work for a person who didn't get much benefit from Zoloft or perhaps Zoloft will work for someone who didn't get much benefit from Effexor. For me, personally, Zoloft has been a life saver; it elevates my moods and helps me control my anxiety.

    I also have this theory formulated from both my own personal experiences and my observations of other people is that people who have depression, or other mental disorders, are so used to such extreme emotions that taking a drug that brings them down to an emotionally nominal level feels like being turned into a zombie to them because they're only used to feeling everything to such an extreme.

  6. I'll bet the effect is very mild. by mjwx · · Score: 4, Insightful

    The article reported a "reduction" in responses to "pleasant and disturbing photos". So I wouldn't start claiming that it's having a very negative effect, or much of an effect at all. When I'm in enough pain to necessitate a pain killer I'm not usually worried about being as happy as I could be (9 times out of 10, it's so I can get to sleep). I typically use Ibuprofen (with a bit of codeine) as most of my pain is a result of inflammation and paracetamol isn't a good anti-inflamatory.

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    Calling someone a "hater" only means you can not rationally rebut their argument.
  7. Re:Zoloft is a 1000 times worse by Shakrai · · Score: 5, Informative

    The best anti-depressant I have found is distance running. The second best is other forms of cardio exercise. SSRIs or SNRIs? Been there, done that, they did very little to help me with depression. I don't even think they took the edge off, although it's hard to prove that negative. Tried Celexa, Zoloft, Effexor, Prozac, and a few other ones. Not only did they fail to address (or even make manageable) the depression, they all came with a lovely side effect and then six months of the other extreme when I discontinued them.

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  8. Re: Zoloft is a 1000 times worse by Anonymous Coward · · Score: 5, Insightful

    Doctors lack a fundamental understanding of the effect the drugs they prescribe for mental health treatment, and are effectively guessing as to what they think will work.

    I came to this idea after a psychiatrist told me that the drugs were about balancing the chemicals in the brain, but I eventually realized that he had taken no measurements or anything before throwing any of them at me.

    So what balance was out of whack? What effect would the medications have? Oh wait, he didn't know. These concerns were dismissed and antagonized. I was merely a patient, I needed to learn to obey the doctor. So what did I learn?

    That the doctor, while purportedly concerned, was hardly treating me in a sound and reasonable manner, but was behaving in a way that worsened my problems and caused me several more issues.

    Only sheer chance got me out with relatively little harm.

    Maybe Zoloft, or Prozac, or whatever is serving you. There are others who are being damaged by the worst kind of treatment. One with delusions of grandeur.

    I'd have been safer going to an herb shop and inhaling a potpourri.

  9. Re: Zoloft is a 1000 times worse by Sarten-X · · Score: 4, Interesting

    ...a psychiatrist told me that the drugs were about balancing the chemicals in the brain, but I eventually realized that he had taken no measurements or anything before throwing any of them at me.

    So what balance was out of whack? What effect would the medications have? Oh wait, he didn't know.

    He's likely even more annoyed about it than you are.

    The problem is that the imbalances may be located in a small part of the brain, and may be on the order of a few dozen molecules, from any of a few thousand chemicals. Thanks to the blood-brain barrier and the localized nature, the only way to actually measure such chemicals is with very invasive (and probably-lethal) brain surgery. There just isn't a simple test where the doctor can prick your finger, put a drop of blood in a magic machine, and tell you which of your neurons are misbehaving.

    For much the same reasons, there are no direct treatments. We can't just poke your amygdala until it works like everyone else - and even if we could, the rest of your brain may not accept the change, and your problems could get worse.

    Psychopharmacology is not engineering. The cause-and-effect relationships are not simple or direct. Rather than study in vain all of the chemical interactions in your brain, your doctor has studied in depth all of the medications he prescribes, memorizing all of their many side effects (with incidence rates) and known relationships to other medications.

    For the actual treatment, yes, it is purely educated guesswork. In your particular case, you may have showed symptoms of X but not Y, so you're a good candidate for treatment 1. That didn't work at all, so treatments 2 and 3 are ruled out, because they work on the same principles. Treatment 4 might be an option, but it only treats symptom Z, which you don't have, but in a certain percentage of cases it does absolutely nothing for Z and causes inverse symptoms to X and Y. Now, that treatment only begins to work after a three-month buildup, so let's start you on that while also trying treatment 5, which starts working immediately and doesn't interfere with treatment 4. Unfortunately the improvement from treatment 5 is very mild, but it can be improved with treatment 6 which amplifies the effects of 5, but does interact negatively with 4.

    These concerns were dismissed and antagonized. I was merely a patient, I needed to learn to obey the doctor. So what did I learn?

    We learned that you think you know psychopharmacology better than the person who's studied it for several years.

    Only sheer chance got me out with relatively little harm.

    Or your stubborn attitude provided the push to develop a coping mechanism on your own, which is also a perfectly valid (though sometimes risky) treatment. When done intentionally (usually involving the field of psychiatry, rather than psychopharmacology), it's more an attempt to change the person to fit their condition, rather than fixing the condition to fit the person.

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