nocebo


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nocebo

 [no-se´bo] (L.)
an adverse, nonspecific side effect occurring in conjunction with a medication but not directly resulting from the pharmacologic action of the medication.

no·ce·bo

(nō-sē'bō),
An unpleasant effect attributable to administration of a placebo.
[L. I shall harm, fr. noceo, to harm, by analogy with placebo, I shall please]

nocebo

(nō-sē′bō)
n. pl. noce·bos or noce·boes
A substance that causes undesirable side effects as a result of a patient's perception that it is harmful rather than as a result of a causative ingredient.

nocebo

A negative placebo effect, which may occur when patients in a clinical trial of a drug therapy recognise (or think they recognise) that they are getting a placebo—i.e., not receiving therapy—and fare worse due to the effect of negative suggestibility.

nocebo

Clinical trials A negative placebo effect that may occur when Pts in a clinical trial of a drug therapy recognize–or think they recognize that they are getting a placebo–ie, not receiving therapy, and fare worse due to the effect of negative suggestibility. Cf Placebo.

no·ce·bo

(nō-sē'bō)
An unpleasant effect attributable to administration of a placebo.
[L. I shall harm, fr. noceo, to harm, by analogy with placebo, I shall please]
References in periodicals archive ?
It's hard to imagine that, given the power of the Rosenthal/Pygmalion, placebo and nocebo effects, that all of the stereotypes we've heard our whole lives about how people inevitably slow mentally with age haven't created the self-fulfilling prophecy of cognitive decline as we age.
If a player is fasting in relatively easy conditions, such as in Qatar, where it's quite possible to maintain one's health when following the right diet and exercise regimen, and staying out of the extreme heat during summer months, the eventual fatigue suffered could very well be a result the nocebo effect rather than the fasting's effect on the body."
A sense of powerlessness is fertile ground for nocebo effects.
The thyroid drug replacement Levothyrox has recently been at the center of one of the most significant nocebo effect hype-cycles of recent history and perhaps, ever.
As there was no placebo arm in this trial, the authors speculated that in real-life situations, patients might be experiencing their symptoms due to psychological anticipation of intolerance when exposed to gluten and thereby suggesting a nocebo effect.
E, talvez, os efeitos placebo e nocebo (Scott et al., 2008) sejam as demonstracoes mais dramaticas de como os usuarios contribuem, mesmo inconscientemente, para a cocriacao de valor, quando tomam um analgesico ou outro remedio.
Another study of 12 men, drinking either plain water (control), or a labeled performance enhancer drink (placebo), or fatigue inducing (nocebo) drink, showed a modest placebo effect in peak minute power incremental arm crank exercise (Bottoms, Buscombe, & Nicholettos, 2014).
The concept of unintentional negative effects (nocebo effects) is rarely discussed in the context of exercise prescription or chiropractic in general.
A recent Vox article tells of the placebo effect's evil twin, the nocebo effect, that gives patients worse side effects when a drug costs more money.