Paradoxical Reaction
Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
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A paradoxical reaction or paradoxical effect is when medical treatment, usually a drug, has the opposite effect to that which would normally be expected
An example of a paradoxical reaction is when a pain relief medication causes an increase in pain.
Some sedatives prescribed for adults actually cause hyperactivity in children
For example, there are serious complications occurring in conjunction with the use of sedatives creating a series of effects in some people, that are the total opposite of those expected.
Malcolm Lader at the Institute of Psychiatry in London estimates the incidence of these adverse reactions at about 5%, even in short-term use of the drugs.
The paradoxical reactions may consist of depression, with or without suicidal tendencies, phobias, aggressiveness, violent behavior and symptoms sometimes misdiagnosed as psychosis.
