Drowsiness, increased fatigue, decreased muscle tone, agitation, extrapyramidal symptoms, malignant neuroleptic syndrome, early dyskinesia (spasmodic torticollis, trismus, oculomotor disorders) and late dyskinesia; phenomena of hyperstimulation (increased anxiety or exacerbation of hallucinatory-delusional symptoms in patients with schizophrenia): dermal
allergic reactions, orthostatic hypotension, weight gain, hyperprolactinemia, decreased potency, gynecomastia, amenorrhea, galactorrhea, frigidity, hyperthermia.