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

/no·ce·bo/ (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.

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

[nose′bo]
an adverse, nonspecific side effect occurring in conjunction with a medication but not directly resulting from the pharmacological action of the medication.

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]

nocebo (nōˑ·sē·bō),

n a negative, harmful placebo effect. See also placebo and placebo effect.
References in periodicals archive ?
New insights into the placebo and nocebo responses.
Placebo and nocebo effects: a complex interplay between psychological factors and neurochemical networks.
Placebo and nocebo effects: an introduction to psychological and biological mechanisms.
Just breathe normally': Word choices that trigger nocebo responses in patients.
Contrario al efecto placebo, palabra que en latin significa te agradare, el efecto nocebo que --tambien en latin--quiere decir te perjudicare, es una reaccion del ser humano poco estudiada, que puede aclarar una serie de misterios que la supersticion, la charlataneria y hasta la religion han achacado a fuerzas sobrenaturales o seres divinos.
Su contraparte, el efecto nocebo, lo definio Walter Kennedy en 1961 como una reaccion indeseable y danina posterior a la administracion de un tratamiento con sustancias inertes (como pastillas de azucar), pero en realidad debe extenderse a todo procedimiento o informacion que genere expectativas negativas en las personas.
Por ejemplo, un efecto nocebo puede ser el que experimenta una persona que lee las reacciones secundarias que llega a causar el medicamento que le receto un medico.
Nocebo effects also occur frequently in clinical trials.
A recent review of 100 MS clinical trials over the past 20 years found a prominent nocebo effect.
Positive expectations are thought to be a major factor in eliciting the placebo response, while negative expectations underlie the nocebo response.
The mechanisms for nocebo (Latin: "I shall harm") effects are also conditioning and expectation, in the form of anxiety.