Adult: Initially 100 Mg Daily, Increased If Necessary To 200 Mg Daily In 1-2 Divided Doses, High Doses Are Rarely Required; Maximum 400 Mg Per Day
Angina:
Oral:
Adult: 50-100 Mg 2-3 Times A Day
Arrhythmias:
Adult: Usual Dose 50 Mg 2-3 Times A Day, Then Increased If Necessary Up To 300 Mg Daily In Divided Doses
By IV Inj:
Adult: Up To 5 Mg, At A Rate Of 1-2 Mg/minute, Then Up To 5 Mg After 5 Minutes If Required, Total Dose Of 10-15 Mg
Migraine Prophylaxis:
Oral:
Adult: 100-200 Mg Daily In Divided Doses
Hyperthyroidism (adjunct):
Oral:
Adult: 50 Mg 4 Times A Day
During Surgery:
By Slow IV Inj:
Adult: Initially 2-4 Mg, Given At Induction Or To Control Arrhythmias Developing During Anaesthesia, Then 2 Mg, Repeated If Necessary; Maximum 10 Mg Per Course Early Intervention Within 12 Hours Of Infarction:
By IV Inj:
Adult: Initially 5 Mg Every 2 Minutes, To A Max. Of 15 Mg, Followed By (oral) 50 Mg Every 6 Hours For 48 Hours, To Be Taken 15 Minutes After IV Injection; (oral) Maintenance 200 Mg Daily In Divided Doses