Acute pain: 5 mg every four hrs by sc or im inj (up to 10mg for heavier well muscled patients) (or by slow iv inj, use ¼—½ im dose).
MI: 5mg by slow iv inj followed by a further 2.5—5mg if required.
Acute pulmonary oedema: 2.5—5mg by slow iv inj.
Chronic pain: 5—10mg every four hrs, orally or by sc inj. Increase dose according to individual requirements.
Renal or hepatic impairment. BPH, convulsive disorders, hypothyroidism, hypotension, asthma or decreased respiratory reserve. Risk of tolerance and dependence. Elderly or debilitated patients. Pregnancy.