Indications And Dose
Acute pain ▶BY INTRAMUSCULAR INJECTION, OR BY SUBCUTANEOUS INJECTION ▶Adult: 5 mg every 4 hours if required ▶BY SLOW INTRAVENOUS INJECTION ▶Adult: 1.25–2.5 mg every 4 hours if required Acute pain (heavier, well-muscled patients) ▶BY INTRAMUSCULAR INJECTION, OR BY SUBCUTANEOUS INJECTION ▶Adult: Up to 10 mg every 4 hours if required ▶BY SLOW INTRAVENOUS INJECTION ▶Adult: 2.5–5 mg every 4 hours if required Chronic pain not currently treated with a strong opioid analgesic ▶BY SUBCUTANEOUS INJECTION, OR BY INTRAMUSCULAR INJECTION ▶Adult: Initially 2.5–5 mg every 4 hours, adjusted according to response ▶BY SUBCUTANEOUS INFUSION ▶Adult: Initially 5–10 mg, adjusted according to response, dose to be administered over 24 hours Acute pulmonary oedema ▶BY SLOW INTRAVENOUS INJECTION ▶Adult: 2.5–5 mg, dose to be administered at a rate of 1 mg/minute Myocardial infarction ▶BY SLOW INTRAVENOUS INJECTION ▶Adult: 5 mg, followed by 2.5–5 mg if required, dose to be administered at a rate of 1–2 mg/minute ▶Elderly: 2.5 mg, followed by 1.25–2.5 mg if required, dose to be administered at a rate of 1–2 mg/minute Myocardial infarction (frail patients) ▶BY SLOW INTRAVENOUS INJECTION ▶Adult: 2.5 mg, followed by 1.25–2.5 mg if required, dose to be administered at a rate of 1–2 mg/minute
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