Hypersensitivity. Bromine allergy; severe vagotonia accompanied by low BP, slow heart rate, hyperacidity, hyperperistalsis of intestine & stomach; increased salivation, peripheral circulatory disturbances, mechanical obstruction to urinary outflow, obstructive ileus, stenosis or spasms in the intestinal tract, biliary ducts & urinary passages; gastric ulcers, enteritis; very low BP, increased muscular tone, tetany, epilepsy, Parkinson's disease, post-op shock & circulatory crises; non-treated cardiac insufficiency, cardiac infarction, CHF, recent MI, cardiac arrhythmias (bradycardia & AV block), bronchial asthma, iritis, myotonia & thyrotoxicosis.