n. a drug that is occasionally used for the rapid reduction of high blood pressure resistant to other treatments (see sympatholytic). Common side-effects are diarrhoea, faintness, and headache.
adj. opposing the effects of the sympathetic nervous system. *Guanethidine blocks the transmission of impulses along adrenergic nerves; it is used to treat high blood pressure. *Alpha blockers and *beta blockers are other kinds of sympatholytic drugs.... sympatholytic
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