Pentobarbital

For trouble in sleeping:
Adults--150 to 200 mg, injected into a muscle.
Children--Dose is based on body weight and must be determined by your doctor. The usual dose is 2 to 6 mg per kg (0.9 to 2.7 mg per pound) of body weight, injected into a muscle.

For sedation before surgery:
Adults--150 to 200 mg, injected into a muscle.
Children--Dose is based on body weight and must be determined by your doctor. The usual dose is 2 to 6 mg per kg (0.9 to 2.7 mg per pound) of body weight, injected into a muscle. However, the dose is usually not more than 100 mg.

For control of seizures:
Children--At first, 50 mg injected into a muscle or vein. Additional small doses may be given if needed.

For trouble in sleeping:
Adults--100 mg injected into a vein, with additional small doses given if needed. However, the dose is usually not more than 500 mg.
Children--Dose is based on body weight and must be determined by your doctor. The usual dose is 50 mg injected into a vein, with additional small doses given if needed.

For control of seizures:
Adults--At first, 100 mg injected into a vein. Additional small doses may be given if needed. However, the dose is usually not more than 500 mg.
Children--At first, 50 mg injected into a muscle or vein. Additional small doses may be given if needed.

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

For daytime sedation:
Adults--20 mg three or four times a day.
Children--Dose is based on body weight and must be determined by your doctor. The usual dose is 2 to 6 mg per kilogram (kg) (0.9 to 2.7 mg per pound) of body weight per day.

For sedation before surgery:
Adults--100 mg before surgery.
Children--Dose is based on body weight and must be determined by your doctor. The usual dose is 2 to 6 mg per kilogram (0.9 to 2.7 mg per pound) of body weight, taken before surgery. However, the dose is usually not more than 100 mg.

For trouble in sleeping:
Adults--120 to 200 mg inserted into the rectum at bedtime.
Children up to 2 months of age--Dose must be determined by your doctor.
Children 2 months to 1 year of age--30 mg inserted into the rectum at bedtime.
Children 1 to 4 years of age--30 or 60 mg inserted into the rectum at bedtime.
Children 5 to 12 years of age--60 mg inserted into the rectum at bedtime.
Children 12 to 14 years of age--60 or 120 mg inserted into the rectum at bedtime.

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

For sedation before surgery:
Children up to 2 months of age--Dose must be determined by your doctor.
Children 2 months to 1 year of age--30 mg inserted into the rectum.
Children 1 to 4 years of age--30 or 60 mg inserted into the rectum.
Children 5 to 12 years of age--60 mg inserted into the rectum.
Children 12 to 14 years of age--60 or 120 mg inserted into the rectum.