<p>The usual recommended adult dose is 10 mg for a 70 kg individual, administered subcutaneously, intramuscularly or intravenously; this dose may be repeated every 3 to 6 hours as necessary. Dosage should be adjusted according to the severity of the pain, physical status of the patient, and other medications which the patient may be<br />
receiving.<br />
<br />
<strong>Moderate to severe pain</strong>: by intravenous or intramuscular injection 10-20 mg for 70 kg patient, adjusted as required; child up to 0.3 mg/kg repeated once or twice as necessary.<br />
<br />
<strong>Preoperative anesthesia</strong>: by intravenous or intramuscular injection 0.1-0.2 mg/kg.<br />
<br />
<strong>Obstetrical analgesia during labor &amp; delivery</strong>: by intravenous injection 0.3-1 mg/kg over 10-15 minutes with maintenance doses of 0.25-0.5 mg/kg in single intravenous administration as required.<br />
<br />
<strong>Intraoperative analgesia</strong>: by intravenous injection 0.25-0.5 mg/kg at 30 minutes intervals.<br />
<br />
<strong>Myocardial infarction</strong>: By slow intravenous injection 10-20 mg, repeated after 30 minutes if necessary. Larger dose is required when used as supplement of anesthesia than that required for analgesia.<br />
<br />
<strong>Children from 18 months to 15 years old</strong>: usually 0.2 mg/ kg body-weight, given preferably by intravenous or intramuscular injection. Maintenance doses may be given at intervals of 4 to 6 hours or the dose must be determined by the physician.</p>