Do not administer in conjunction w/ medications containing centrophenoxine. Do not exceed 1,000 mg daily in case of persistent intracranial hemorrhage. High intake may cause low BP, steatorrhea, nausea, vomiting, salivation, diarrhea, constipation, anorexia, dizziness, sweating, insomnia & headache. May trigger existing epilepsy. Upper limit doses are contraindicated in patients suffering from trimethylaminuria, Parkinson's disease, or kidney or liver disease. Skin rash, cold & cough, agitation, paranoia & severe depression have been reported. Patients w/ history of depression. May produce side effects similar to succinylcholine eg, resp depression; fishy odor. Sweating & stunted growth may occur. Patients w/ kidney or liver disorders. Pregnancy & lactation.