Sialoadenitis; hemolytic anemia, bone-marrow failure, leukopenia, granulocytopenia, thrombocytopenia, eosinophilia; hyperprolactinemia; psychic disturbances including nightmares, reversible mild psychoses or depression, decreased libido; sedation (usually transient), headache, paraesthesia, parkinsonism, VII
th nerve paralysis, choreoathetosis, mental impairment, carotid sinus syndrome, dizziness, symptoms of cerebrovascular insufficiency; bradycardia, angina pectoris, myocarditis, pericarditis, AV block; orthostatic hypotension; nasal congestion; nausea, vomiting, abdominal distension, constipation, flatulence, diarrhoea, colitis, dry mouth, glossodynia, tongue discolouration, pancreatitis; liver disorders including hepatitis, jaundice; rash (eczema, lichenoid eruption), toxic epidermal necrolysis; lupus-like syndrome, mild arthralgia w/ or w/o joint swelling myalgia; breast enlargement, gynaecomastia, amenorrhea, lactation disorder, erectile dysfunction, ejaculation failure; asthenia, oedema (& wt gain) usually relieved by use of a diuretic (discontinue methyldopa if oedema progresses or signs of heart failure appear), pyrexia; +ve Coombs' test, +ve tests for antinuclear antibody, LE cells & rheumatoid factor, abnormal liver-function tests, increased blood urea.