Phenobarbital

For trouble in sleeping:
Adults--100 to 325 mg, injected into a muscle or vein, or under the skin.

For daytime sedation:
Adults--30 to 120 mg a day, injected into a muscle or a vein, or under the skin, in smaller doses two or three times during the day.

For sedation before surgery:
Adults--130 to 200 mg, injected into a muscle sixty to ninety minutes before surgery.
Children--Dose is based on body weight and must be determined by your doctor. The usual dose is 1 to 3 mg per kg (0.45 to 1.4 mg per pound) of body weight, injected into a muscle or vein sixty to ninety minutes before surgery.

For trouble in sleeping:
Adults--100 to 325 mg, injected into a muscle or vein, or under the skin.

For daytime sedation: Adults--30 to 120 mg a day, injected into a muscle or a vein, or under the skin, in smaller doses two or three times during the day.

For sedation before surgery:
Children--Dose is based on body weight and must be determined by your doctor. The usual dose is 1 to 3 mg per kg (0.45 to 1.4 mg per pound) of body weight, injected into a muscle or vein sixty to ninety minutes before surgery.

For control of seizures: Adults--100 to 320 mg injected into a vein. The dose may be repeated if needed, but is usually not more than 600 mg a day. However, higher doses may be needed for certain types of continuing seizures.
Children--Dose is based on body weight and must be determined by your doctor. At first, the usual dose is 10 to 20 mg per kg (4.5 to 9 mg per pound) of body weight, injected into a vein. Later, 1 to 6 mg per kg (0.45 to 2.7 mg per pound) of body weight a day, injected into a vein. Higher doses may be needed for certain types of continuing seizures.

For trouble in sleeping:
Adults--100 to 320 milligrams (mg) at bedtime.
Children--Dose must be determined by your doctor.

For daytime sedation:
Adults--30 to 120 mg a day, taken in smaller doses two or three times during the day.
Children--Dose is based on body weight or size and must be determined by your doctor. The usual dose is 2 mg per kilogram (kg) (0.9 mg per pound) of body weight three times a day.

For sedation before surgery:
Children--Dose is based on body weight and must be determined by your doctor. The usual dose is 1 to 3 mg per kg (0.45 to 1.4 mg per pound) of body weight.

For control of seizures:
Adults--60 to 250 mg a day.
Children--Dose is based on body weight and must be determined by your doctor. The usual dose is 1 to 6 mg per kg (0.45 to 2.7 mg per pound) of body weight a day.