A Case of Anagen Effluvium Induced by INH (Isonicotinic Acid Hydrazide) / 대한피부과학회지

ABSTRACT

We report a case of a 30 year-old woman who presented with acute scalp hair loss induced by isonicotinic acid hydrazide gap (INH). Considerable hair loss started within 4 weeks of INH administration. There was no evidence of dermatitis, allergic reaction, or any other cause for the hair loss. INH was discontinued, and the hair loss stopped within 4 weeks, with new hair growth seen. There was complete recovery of hair loss after 12 weeks of alopecia. Medication-induced hair loss is an occasional adverse effect of many drugs, however hair loss induced by INH has been reported in only 1 case. The complete recovery from anagen effluvium is difficult to explain, but it could have been due to the early discontinuance of INH.