| Sulpiride is very well tolerated and usually only minor side-effects occur, if at all, at the recommended doses. Hypersensitivity reactions: contact sensitivity, exfoliative dermatitis and urticaria. Haematological: agranulocytosis, haemolytic anaemia, thrombocytopenic purpura and leucopenia. Antimuscarinic: dry mouth, blurred vision, difficulties with micturition and constipation.Metabolic: hyperglycaemia, hypothermia, hyperthermia, weight gain.Male sexual dysfunction: ejaculatory dysfunction, impotence, increased and decreased libido have been reported. Cardiovascular: hypotension (in high doses), hypertension, electrocardiographic (ECG) changes, QT prolongation, ventricular fibrillation and tachycardia (rare), cardiac arrest, Torsades de pointes and sudden unexplained death. Hepatic: Jaundice and elevated hepatic enzymes.Neurological/psychiatric: delirium/confusion, catatonia, depression, somnolence, lassitude and insomnia. Sleep disturbances, overstimulation and agitation may occur. Extrapyramidal effects, including akathisia, acute dystonia and parkinsonism have been observed in a small number of patients but tardive dyskinesia is rare. Convulsions have been reported in patients with no previous history.Skin: pigmentation of the skin, photosensitivity and skin rashes. Special senses: corneal and lens opacities, deposition of pigment in the eyes. Respiratory: Nasal congestion. As with other neuroleptics, rare cases of neuroleptic malignant syndrome, characterised by hyperthermia, muscle rigidity, autonomic instability, altered consciousness and elevated CPK levels, have been reported. In such an event, all antipsychotic drugs, including sulpiride, should be discontinued. Therapeutic doses of antipsychotics raise serum prolactin levels. Long term use may be associated with galactorrhoea and amenorrhoea, and less frequently with gynaecomastia. In long term animal studies with neuroleptic drugs including sulpiride, an increased incidence of various endocrine tumours (some of which have occasionally been malignant) has been seen in some strains of rats and mice studied. The significance of these to man is not known; there is no current evidence of any association between neuroleptic use and tumour risk in man. However, when prescribing neuroleptics to patients with existing mammary neoplasia or a history of this disease, possible risks should be weighed against benefits of therapy. Cases of venous thromboembolism, including cases of pulmonary embolism and cases of deep vein thrombosis have been reported with antipsychotic drugs - Frequency unknown. | |