Pharmacology Chemotherapy: General Principles da859c7b Anti-tubercular drug associated with psychosis is: A INH B Rifampicin C Ethambutol D Streptomycin High-Yield Explanation Ans. (A) INH(Ref: Goodman Gilman 12th/1556)Isoniazid can cause neuropsychiatric adverse effects like seizures, transient loss of memory and psychosis.