Sedation or drowsiness; anticholinergic effects eg, dry mucous membranes, constipation, impaired accomodation, mydriasis, cardiac palpitations & risk of urinary retention; orthostatic hypotension; impaired balance, vertigo, memory or conc impairment, motor incoordination & tremor; mental confusion & hallucinations. Erythema, eczema, pruritus, purpura, giant urticaria, edema, anaphylactic shock, photosensitization. Leukopenia, neutropenia, thrombocytopenia, hemolytic anemia.