CLINICAL PHARMACOLOGY OF HISTAMINE
In pulmonary function laboratories, histamine aerosol has been used as a provocative test of bronchial hyperreactivity. Histamine has no other current clinical applications.
Adverse effects of histamine release, like those following adminis-tration of histamine, are dose related. Flushing, hypotension, tachycardia, headache, wheals, bronchoconstriction, and gastroin-testinal upset are noted. These effects are also observed after the ingestion of spoiled fish (scombroid fish poisoning), and there is evidence that histamine produced by bacterial action in the flesh of the fish is the major causative agent.
Histamine should not be given to patients with asthma (except as part of a carefully monitored test of pulmonary function) or to patients with active ulcer disease or gastrointestinal bleeding.