Sedation or drowsiness; anticholinergic effects eg, dry mucous membranes, constipation, mydriasis, cardiac palpitations & risk of urinary retention; orthastatic hypotension; impaired balance & accommodation; 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.