Severe hypertension due to emergency(including in the hypertension of pregnancy), hypertension
due to acute cardiac infarction, blood pressure depressant during anesthesia.

●Hypertension : If it is essential to reduce the blood pressure quickly, a dose of 50mg should be given by intravenous injection. If necessary, dose of 50mg may be repeated at five minute intervals until a satisfactory response occurs. The total dose should not be exceed 200mg. Intravenous infusion : The resultant infusion solution contains 1mg/ml of labetalol hydrochloride.
●In the hypertension of pregnancy : The infusion can be started at the rate of 20mg/hour and this dose may be doubled every thirty minutes until a dosage of 160mg/hour.
●Hypertension due to acute cardiac infarction : The infusion can be started at the rate of 5mg/hour and maximum dose may be increased 120mg/hour.
●In anesthesia : The recommended starting dose is 10~20mg by intramuscular. If blood pressure is not regulated after five minutes, increments of 5~10mg should be administered until the desired level of blood pressure is attained.