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Beware the Nocebo Effect

An article at the NY Times looks at research into the "nocebo" effect. Named after the placebo effect, it's the term for when patient expectations do harm, rather than good. "When a patient anticipates a pill’s possible side effects, he can suffer them even if the pill is fake." The article describes several instances of patients getting the placebo in a drug trial, but reporting the expected side effects of the drug, rather than the benefits or nothing at all. Quoting: "Consider the number of people in medical trials who, though receiving placebos, stop participating because of side effects. We found that 11 percent of people in fibromyalgia drug trials who were taking fake medication dropped out of the studies because of side effects like dizziness or nausea. Other researchers reported that the discontinuation rates because of side effects in placebo groups in migraine or tension drug trials were as much as 5 percent. Discontinuation rates in trials for statins ranged from 4 percent to 26 percent. ... In one remarkable case, a participant in an antidepressant drug trial was given placebo tablets — and then swallowed 26 of them in a suicide attempt. Even though the tablets were harmless, the participant's blood pressure dropped perilously low."

50 of 239 comments (clear)

  1. The Mind is amazing by tomhath · · Score: 4, Insightful

    No surprise here, the mind controls the body. Why wouldn't the placebo effect work both ways?

    1. Re:The Mind is amazing by arth1 · · Score: 5, Insightful

      Drinks with HFCS give me migraines, for example. A sugar placebo would certainly have side effects not even considering the mind over matter aspect of the situation.

      I think you might be begging the question here - precluding a nocebo effect based on something that may very well be a nocebo effect.
      Or have you been through double blind tests?

    2. Re:The Mind is amazing by Intrepid+imaginaut · · Score: 4, Informative

      There are many examples outside the laboratory to look at in order to see the power of the mind over the body. Mothers lifting overturned vehicles to free a trapped child, a prisoner in the Nazi concentration camps whose name escapes me at the moment describing seeing men literally give up, they ate their last potato, lay down, and died for no particular medical reason. On a more upbeat note, someone like Wim Hof, who can control the temperature of his body to an incredible degree, is a living example of what we can do. Science has really only begun to probe the full extent of the control that can be achieved.

    3. Re:The Mind is amazing by amicusNYCL · · Score: 3, Interesting

      That could cause an anti-migraine pill to make the situation worse, or cause reduced kidney/liver function as my body works overtime to purge the sugar from my blood

      Would 100mg of sugar really cause problems for your liver?

      --
      "Our two-party system is like a bowl of shit looking at itself in a mirror." - Lewis Black
    4. Re:The Mind is amazing by Anonymous Coward · · Score: 3, Insightful

      Seriously? +4 insightful for "What if scientists haven't considered that inactive ingredients might not be inactive?" At least four people thought that was a valid, interesting point?

      Dude, how much fucking sugar do you think is in a sugar pill?

    5. Re:The Mind is amazing by slew · · Score: 5, Informative

      Some placebos are sugar pills...

      The good news (for you): almost no placebos in large medical trials are "sugar-filled" pills**.
      The bad news (for everyone): ingredients of placebos are mostly unregulated, usually not published, and are often formulated to attempt to duplicate the known side effects of the medicine in question in a relatively benign manner.

      **most actual pills, however, are sugar coated***, so in that sense almost all pills (including both real pills and placebo pills) are "sugar" pills...
      ***the coating of pills is often plastic phthalates (embedded with sugar and artificial colors), yet another thing to worry about when taking pills...

    6. Re:The Mind is amazing by Anonymous Coward · · Score: 5, Interesting

      Holy crap, a correct use of the phrase "begging the question"! You win one Internet.

    7. Re:The Mind is amazing by similar_name · · Score: 3, Informative
      This article seems relevant.

      ... for the moment let's focus on the idea of what they call an "active placebo," designed to mimic the side effects of a tested drug.

    8. Re:The Mind is amazing by Anonymous Coward · · Score: 2, Informative

      I do believe you missed the milli in mg.

    9. Re:The Mind is amazing by TubeSteak · · Score: 2

      Mothers lifting overturned vehicles to free a trapped child

      Hysterical strength is not "mind over the body".
      During times of extreme stress, our body essentially disengages the safeties and allows us to use our muscles to their full capacity.
      One can achieve the exact same levels of strength by electrocuting oneself, which forces all the muscle fibers to twitch at once.
      I don't recommend you try it though, since you'll end up (A) electrocuted and (B) with torn muscles.

      If it was truly a mind over body talent, there would be people (similar to Wim Hof) who could access it on demand.

      --
      [Fuck Beta]
      o0t!
    10. Re:The Mind is amazing by cranky_chemist · · Score: 3, Informative

      Actually, the ingredients of placebos can definitely induce side effects, and this is not a new problem. See http://www.reuters.com/article/2010/10/18/us-whats-placebo-idUSTRE69H51L20101018

    11. Re:The Mind is amazing by Anonymous Coward · · Score: 4, Informative

      fructose is metabolized by the liver in a biochemical process nearly identical to alcohol (search YouTube for Dr. Robert Lustig's lecture "Sugar: The Bitter Truth"; he walks through the biochemistry in detail)

      I haven't seen that YouTube video so it's quite possible that what Dr Lustig means is different to what you're saying... but the metabolic pathways for ethanol and fructose metabolism are very, very different.

      The major pathways of ethanol metabolism are:

      (a) Ethanol --ADH--> acetaldehyde --ALDH--> acetic acid.
      (b) Microsomal ethanol oxidizing system (induced in chronic alcoholics).
      (c) Catalase enzyme (minor).

      The major pathways of fructose metabolism are:

      (a) Fructokinase enzyme in the liver, i.e. fructolysis (similar to glycolysis for glucose which occurs in most cells).
      (b) Hexokinase enzyme in most cells, but is usually inhibited by glucose.

    12. Re:The Mind is amazing by Smauler · · Score: 3, Insightful

      I can control my heartbeat at will, to some degree. If my heart gets a massive blockage in it, I won't be able to think it out.

      Mothers don't lift overturned vehicles, they lever them on pivots - an overturned vehicle is relatively easy to move around comparative to to weight it is, because it's sitting on it's top.

      Perpetuating the myth that mothers can do extraordinary feats in times of crisis slams guilt on those mothers that did not manage to save their child when then did all they could.

    13. Re:The Mind is amazing by Anonymous Coward · · Score: 3, Informative

      You have any credible references to this notion? I am a mediical doctor and have read countless scientific articles, and never have I heard about any active effect purposely added to the treatment of the placebo control group. That would instantly invalidate the trial, and it wouldn't get published.

    14. Re:The Mind is amazing by twocows · · Score: 4, Interesting

      Do you have a source for that? Genuinely interested, not doubting you.

    15. Re:The Mind is amazing by Intrepid+imaginaut · · Score: 3, Informative

      I find it interesting that you translated what I said to "compare him to old anecdotal fairy tales of mystic powers". This I would view as a symptom of the bizarre extremist rational atheism (in fact irrational religion) which seems popular in certain circles, which views any expression of amazement at unusual events or people as being a direct challenge to all of science, when in fact its only a challenge to your dogmatism. That's dogmatism mind, not realism.

      And this after attempting to denigrate his achievements as just "staying warm", with a tip of the hat towards the old genetics canard. The man climbed 7/8ths of the way up Mount Everest in his shorts, sits up to his neck in ice for hours at a stretch (they had to cut him out with axes in one demonstration, the thing had frozen solid), and hey, he just ran a marathon in one of the hottest deserts on earth, 40 degrees celcius, at age 52, without water. So much for just "staying warm".

      If you know about cold, as you claim, you know very well just how lethal exposure can be and how quickly it can kill - survival training basics, the rule of threes, three hours of exposure, three days without water, three weeks without food, thats how long it will take to become incapacitated. And thats in relatively livable conditions, not north of the Arctic circle, making his achievements all the more remarkable.

      My advice, grow an imagination and a sense of wonder, you're as much of a threat to science as any right wing religious nutjob at the moment.

  2. Too Bad I don't Take Medications... by ilikenwf · · Score: 3, Insightful

    And even if I did, I wouldn't get my info about them from the freaking commercials that list off what it's for, the horrendous side effects, as it shows a happy family playing outside, and then says "ask your doctor..." WTF?

    The US is the only nation that allows pharma ads, and they're really harming our society because people go to the doc and demand certain meds as a result of these commercials. Enjoy your diharrea, heart palpitations, mild depression and thoughts of suicide.

    This all relates back to the article, as these nocebo effects are a result of stupid people taking advice from even more idiotic marketing people about what drugs they need, for fake diseases like restless leg syndrome, and miracle cures that don't work and just cause you to die like the numerous discontinued drugs caught up in class action lawsuits for wrongful death.

    1. Re:Too Bad I don't Take Medications... by Anonymous Coward · · Score: 2, Insightful

      Fake disease? Restless leg syndrome is a real disease. Just because many claim to have the disease, while they dont, does not make the disease fake.

    2. Re:Too Bad I don't Take Medications... by Shikaku · · Score: 2

      Your outlook on medication probably causes more problems from the nocebo effect...

      But you are right about the marketing at least.

    3. Re:Too Bad I don't Take Medications... by geekoid · · Score: 2

      "restless leg syndrome,"
      fine, what do you call it when a persons legs don't stop moving while they sleep? It's not like there isn't volumes of actual documentation.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    4. Re:Too Bad I don't Take Medications... by cpu6502 · · Score: 4, Funny

      "Horniness"

      --
      My AC stalker: " I personally agree with your posts most of the time, but that won't keep me from modding you troll"
    5. Re:Too Bad I don't Take Medications... by cvtan · · Score: 3, Interesting

      Have you noticed that the ads for restless leg syndrome drugs have vanished? Why is that?

      --
      Sorry, but gray text on gray background is making my eyes bleed.
    6. Re:Too Bad I don't Take Medications... by JoeMerchant · · Score: 2

      Wheat (possibly gluten...) gives me inflammation/arthritic symptoms, eliminating it completely for several days makes the inflammation go away.

    7. Re:Too Bad I don't Take Medications... by SydShamino · · Score: 2

      My restless legs haven't, though. Damn it's annoying as hell when I'm just trying to get to sleep and they start to ache in seconds if held still. Usually getting them really cold mitigates it enough to get to sleep, and they only bother me in the late evening.

      --
      It doesn't hurt to be nice.
    8. Re:Too Bad I don't Take Medications... by girlintraining · · Score: 2

      Have you noticed that the ads for restless leg syndrome drugs have vanished? Why is that?

      Marketing isn't using television ads for that product anymore. Next question, please.

      --
      #fuckbeta #iamslashdot #dicemustdie
  3. last example is very interesting by Trepidity · · Score: 2, Interesting

    I wonder if it's actually possible to commit suicide by swallowing placebos? Or is there some limit to the nocebo effect's severity that'd prevent that?

    1. Re:last example is very interesting by Bookwyrm · · Score: 2

      Try this reference:
          http://en.wikipedia.org/wiki/Voodoo_death

      'Psychosomatic death' is probably related to what you are thinking of.

    2. Re:last example is very interesting by jfengel · · Score: 5, Informative

      Nocebo is a perfectly reasonable name. "Placebo" is from a Latin root meaning "to please". "Nocebo" means "I will harm". It may sound like a silly portmanteu, but "nocebo" has roots of comparable authenticity that give rise to how the word is used today.

      It would be a real stretch to make "placebo" refer to all psychosomatic effects. That would differ both from its Latin roots and from its common usage, which connotes positive effects (or at least, sought-for effects).

      It is a bit late for the New York Times to be figuring this out. "Nocebo" is more recent in English than "placebo" (it only took off in the 1980s), but it's not news to science.

    3. Re:last example is very interesting by somersault · · Score: 2

      I take it you've never had stress cause or exacerbate a health problem? I've had a few periods in my life where I've been massively stressed out and my hands and face break out in dry patches.

      Relationship problems and breakups can give me feelings of physical pain (not really in short term ones, but with lines that have gone on for more than say 6 months). And still I can't imagine how horrible it would feel to lose someone after being married for 50 years. It's not so much a will to die, as an inability to cope with stress, which can lead to things like poor quality sleep and lowered immune system function, etc.. a positive attitude helps fight these things, so an "I don't care any more" attitude could be the difference between life and death..

      Probably the survival instinct isn't quite so strong for those that have already raised their kids either.

      --
      which is totally what she said
  4. Hmm by lightknight · · Score: 2

    And yet, supposedly, the effectiveness of placebos is rising. What does this tell us? Human beings are becoming more pliable / suggestive, which is not a good thing.

    For one, that level of pliability is probably a prelude to something really horrible, the least of which is a Justice / Legal system that will operate in "sideways mode." Not a problem until you're convicted of something you didn't do. But if you make sure you are always wealthy / powerful enough, it shouldn't ever be a problem.

    --
    I am John Hurt.
  5. Comment removed by account_deleted · · Score: 2

    Comment removed based on user account deletion

  6. Re:Why am I not suprised? by LurkerXXX · · Score: 3, Informative

    Actually, most folks I know who said they have fibromyalgia have been misdiagnosed because they had non-standard symptoms for some other condition. Fibromyalgia just seems to be a catch-all for when they have some symptoms in one area and they can't figure out what else it could be.

  7. The Math Is Simple by rmdingler · · Score: 2

    If one believes that advanced human evolution will include the ability to control bodily processes with one's mind, including healing and maximization of performance, then it's also quite likely possible for it to work the other way.

    --
    Happiness in intelligent people is the rarest thing I know.

    Ernest Hemingway

  8. No humans are weird by cpu6502 · · Score: 3, Interesting

    They are so gullible that they will believe anything, even that they have upset stomachs (even when they don't). Or that Lush Rimbaugh is right. Or that celltowers are the cause of their headaches even if the tower is turned-off & the headaches are caused by other issues (like staying-up til midnight).

    --
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    1. Re:No humans are weird by Anonymous Coward · · Score: 5, Insightful

      or that Chiropractic treatment works. Or homeopathy, crystals, accupunture, tiger penis soup, Sea Horse balls, etc ...

      And I once argued with a psychologist about their efficacy (for therapy). For the patient to get better, they have to want to change; then doesn't that make it a placebo?

      "No!" blah balh blah blah.

      "I see. But when I take a antibiotic, it either works or it doesn't. My belief or desire for it to work is irrelevant."

      And then there are the very compelling arguments with data of the efficacy of anti-depressants.

      Yeah, yeah, yeah, go ahead acuse me of being a Scientologist. But even kooks can be right sometimes for the wrong reasons. for example, Mormons. They say you can't drink alcohol.

    2. Re:No humans are weird by Alter_3d · · Score: 2

      Dammit, don't talk against chiropractors. In eleven seconds, you are going to get a reply from Dr. Looney that says that chiropractic treatments cure cancer, AIDS, ingrown nails and the Flame virus.

    3. Re:No humans are weird by DMUTPeregrine · · Score: 5, Insightful

      Psychological therapy works by using a conscious desire for change to find subconscious causes of undesired behavior and eliminate them. It is arguably psychosomatic, but not all psychosomatic effects are placebo effects.

      --
      Not a sentence!
    4. Re:No humans are weird by JoeMerchant · · Score: 2

      "I see. But when I take a antibiotic, it either works or it doesn't. My belief or desire for it to work is irrelevant."

      Not entirely, as mentioned in the article, 26 placebo pills dangerously lowered the subject's blood pressure. Placebo effect can also boost or lower natural immunity, possibly to equal or greater effect than antibiotics, especially with MRSA and other drug tolerant strains.

    5. Re:No humans are weird by SydShamino · · Score: 2

      There was a recent study that showed accupucture worked. No, not Chinese accupucture; it didn't actually matter where the needled were stuck, but there was a difference if they were stuck at all. Maybe it was a placebo effect but no matter, it had an effect.

      Personally my chiropractic experience was a success in that she showed me how my posture was the source of my periodic, debilitating headaches. (Muscles seized in the back of my neck.) Drastic changes to my posture (I sit strictly upright at all times) led to drastic reductions in frequency, and I know new places I can push to force the muscles to relax if they do tense up. Of course she also mucked up my jaw in an adjustment so she wasn't perfect (or even great), but for the problem I saw her for she helped.

      --
      It doesn't hurt to be nice.
    6. Re:No humans are weird by Anonymous Coward · · Score: 2, Interesting

      or that Chiropractic treatment works. Or homeopathy, crystals, accupunture, tiger penis soup, Sea Horse balls, etc ...

      Yes... and the people who believe in these "treatments" often believe that modern medicine, big pharma, all medical doctors, etc are "evil" - and these preconceptions may result in them experiencing (real) adverse side effects.

      And I once argued with a psychologist about their efficacy (for therapy). For the patient to get better, they have to want to change; then doesn't that make it a placebo?

      The difference with evidence-based therapies such as Cognitive Behavioural Therapy is that the combination of (a) the patient wanting to change, and (b) being treated with CBT produces better outcomes than simply wanting to change alone. Hence, the treatment is classified as being effective.

      References (probably paywalled): http://www.uptodate.com/contents/overview-of-psychotherapy

      "I see. But when I take a antibiotic, it either works or it doesn't. My belief or desire for it to work is irrelevant."

      I hate to burst your bubble, but this is an over-simplified and incorrect understanding of therapeutic interventions. One major reason why therapeutic trials are conducted as blinded (preferably double or triple blinded), randomized controlled trials is that your belief and/or desire for it to work *DOES* influence whether or not it works, i.e. in objective, measurable outcomes such as reduction in blood pressure.

      For virtually every disease treatment combination available, you will get a combination of outcomes that include:

      (a) patients who take the drug and get better (improvement in objective measurements),
      (b) patients who don't take the drug (or a placebo) and have no difference or get worse,
      (c) patients who take the drug and have no improvement - or even deteriorates, and
      (d) patients who don't take the drug and spontaneously improve.

      Clinical measurements of treatment effectiveness (odds ratios, relative risk, etc) measure the ratio of (a / (a + c)) / (b / (b + d)) to see whether a treatment "works".

  9. Huh? by denzacar · · Score: 2, Informative

    The US is the only nation that allows pharma ads

    You should travel more.

    --
    Mit der Dummheit kämpfen Götter selbst vergebens
  10. Re:Why am I not suprised? by SydShamino · · Score: 2

    For my wife it was at first wondering why, with her lower back and legs in pain and numbness due to blown disk, her hands were also numb. After a few weeks on constant painkillers for her back, when those came down she found she was constantly fatigued, and with skin that felt like she had a 2nd degree sunburn over her whole body. And numb hands.

    Are you proposing that, while her back was in excruciating pain, she chose to imagine that her hands were numb? Why would she go to the bother? It seems perfectly reasonable to me that nerve cells can misfire or nerve receptors can respond to the wrong or nonexistent signals, in the same way that brain cells can misfire in epileptic patients. They're all the same basic cells.

    Having the treatment be a mood stabilizing drug makes sense as well, then in that they mess with the brain's ability to process nerve signals. While my wife was on it she would tell me that she felt "stupid" because she just couldn't think as quickly or as well as before. We got her off of that as soon as possible.

    --
    It doesn't hurt to be nice.
  11. "inert ingredients" vs. inert by reiisi · · Score: 3, Interesting

    Inert means inert, yes.

    On the other hand, "inert ingredients" means ingredients that show up in a list in a standard as being supposed to be inert when used in a specific way. Thus, YMMV.

    --
    Computer memory is just fancy paper, CPUs just fancy pens with fancy erasers; the 'net is just a fancy backyard fence.
  12. 100 mg? by reiisi · · Score: 2

    Anecdotal, and first/second person from me is third person to you, but, ...

    Not sure if your 1/10 gram matches the actual amount in a placebo, but the amount of sugar in a non-placebo pill can indeed have bad effects on someone with sugar reactions, including liver and kidney function.

    We know that it can have a significant effect on a diabetic person, as well, so there's no need to fuss about the amount.

    When someone in the family is sick and claims sugar intolerance, does it do any good to argue whether sugar intolerance is real?

    Seriously. Let the person cut back a bit on sugar, even if it means having, for instance, to make one's own biscuits because you can't get sugar free bread in the store. It's not a whole lot of trouble to go to, and home made biscuits are not particularly evil, either. Might even taste good after a bit of practice making them, adjusting the recipe, etc.

    Which is on-topic here, because we too often get too involved in arguing about science when the best thing we can do for someone who is sick is just listen, express sympathy and support, and if they think of something sensible to do, encourage them to do it. (Again, for most people, cutting back on sugar is quite sensible.)

    Shoot, sympathy and support are often better medicine than anything the doctor can prescribe. Can promote communication, too.

    --
    Computer memory is just fancy paper, CPUs just fancy pens with fancy erasers; the 'net is just a fancy backyard fence.
    1. Re:100 mg? by Zouden · · Score: 4, Informative

      I have type I diabetes and I can assure you that 100mg of sugar will have absolutely no effect.

      --
      "A week in the lab saves an hour in the library"
  13. You are arguing against a metaphor. by denzacar · · Score: 2

    For the patient to get better, they have to want to change;

    "Patient has to want to change" is a shorthand/metaphor for "a patient has to accept the existence of a problem, and in order to find the cause of it so it can be treated, he or she must openly discuss the problem and the underlying issues with a trained professional".

    But when I take a antibiotic, it either works or it doesn't.

    Weeeell...
    Elevated stress can cause an increase in production of stomach acid, which can inhibit certain antibiotics, when taken orally.
    More like "thinking positive" than "believing", and weakening the effect than "not working" but you get the picture.

    --
    Mit der Dummheit kämpfen Götter selbst vergebens
    1. Re:You are arguing against a metaphor. by denzacar · · Score: 2

      Psychology, there is no way to explain why something did not work. Theories exist as to why it did work, when it is successful, but we can't investigate, measure, and fix the problem. We also cannot state as fact that a condition is resistant to all known treatments, as we can with other medical fields.

        If it doesn't work on its own, and we can't explain what it does, and all it is supposed to be doing is restoring the balance of chemicals in the brain... shouldn't someone have figured this out by now?

      Not trying to be a smartass here but, shouldn't a hardware+software paradigm of the human brain and psyche be intuitively clear to someone on slashdot?

      Psychotherapy is debugging of a software problem which may or may not be caused by a hardware problem.
      Chemicals only fix or turn on or off faulty hardware.
      And both are at best empirical because we know almost nothing about the hardware, and all of the software is custom made.

      Not seeing a difference here. Either an antibiotic works, or it doesn't, because it's ineffective against that class of bacteria, or it's a mutant bacteria, or increased stomach acid, or you took it with something that the label says not to take it with.

      The dose makes the poison.

      A weakened antibiotic may not work sufficiently well to stop the infection entirely, though regularly it would, allowing it to resurge or spread.
      Or, it may provide an environment for the disease to achieve immunity to that particular antibiotic.

      Said antibiotic still works against that disease - just not in that particular case anymore.

      --
      Mit der Dummheit kämpfen Götter selbst vergebens
  14. Here it comes! by Ol+Olsoc · · Score: 2
    There is a whole industry of lawyers who read the side effects of medicines, then go trolling for "victims" to come forth so they can sue the drug company. It's pretty bizarre to watch the commercials, it's like reading a list.

    The funniest part is that they often say "If you have been injured or killed by" such and such drug.

    So if there is placebo side effects, there can now be lawsuits over taking almost nothing. Litigation paradise!

    --
    The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
  15. Except in the TFS... by BooMonster · · Score: 2

    ...where they cite a placebo lowering the subject's blood pressure. And blood pressure is OBjective, not SUBjective.

    And yes, in this case, you are scientifically inaccurate.

  16. here's what I find even more interesting. by nanamin · · Score: 2

    Even more interesting (to me) is the fact that placebos tend to work even if the patient is aware that they have ingested a placebo. The placebo effect and activities of mirror neurons are still very poorly understood. I think a lot of the comments here suggesting that "the increasing effectiveness of placebo suggests that our culture is becoming more gullible/suggestible" are premature and show the bias of the people making those comments. Whether or not their conclusions are accurate, correlation does not equal causation and it could simply be that humans are developing more mirror neurons (or whatever else), giving us more--and not less--control over the power our minds have over our lives.