Br Med J (Clin Res Ed) 1981;282:1576-1578 (16 May), doi:10.1136/bmj.282.6276.1576
Analgesic effects of branding in treatment of headaches.
The effect of branding--that is, the labelling and marketing--of
a well-known proprietary analgesic used to treat headaches was
studied in a sample of women given a branded or unbranded form
with either an inert or an active formulation. The sample was
also divided according to whether the subjects were regular
users of the brand or users of other brands. The findings showed
that branded tablets were overall significantly more effective
than unbranded tablets in relieving headaches. Differential
effects were observed: the effects of branding were more noticeable
one hour after the tablets were taken compared with 30 minutes;
in the women given the placebo; and in the users of the brand
compared with the users of other brands. It is hypothesised
that these effects are due to increased confidence in obtaining
relief with a well-known brand, and that branding has an analgesic
effect that interacts with the analgesic effects of placebos
and active ingredients.

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