ORAL: Loading of 400-600 mg followed after 2 hrs. by maint. dose of 200-250mg tid/qid. Higher loading doses like 600mg after MI, especially if opioid analgesics have been already given.
SLOW IV:100-250mg at 25mg/min, then 250mg infusion over 1 hr followed by 250mg/hr over the next 2 hr. Maint. dose of 0.5mg/ min. |