Take prochlorperazine only as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered.
Dosing
The dose of prochlorperazine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of prochlorperazine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
For oral dosage forms (tablets):
For severe nausea and vomiting:
Adults and children 2 years of age and older and weighs more than 39 kilograms (kg) (85 pounds (lbs))—At first, 5 or 10 milligrams (mg) 3 or 4 times a day. Your doctor may adjust your dose if needed. However, the dose is usually not more than 40 mg per day.
Children 2 years of age and older and weighs 18 to 39 kg (40 to 85 lbs)—Dose is based on body weight and must be determined by your doctor. At first, 2.5 mg 3 times a day or 5 mg 2 times a day. Your doctor may adjust your dose if needed. However, the dose is usually not more than 15 mg per day.
Children 2 years of age and older and weighs 14 to 18 kg (30 to 39 lbs)—Dose is based on body weight and must be determined by your doctor. At first, 2.5 mg 2 or 3 times a day. Your doctor may adjust your dose if needed. However, the dose is usually not more than 10 mg per day.
Children 2 years of age and older and weighs 9 to 13 kg (20 to 29 lbs)—Dose is based on body weight and must be determined by your doctor. At first, 2.5 mg 1 or 2 times a day. Your doctor may adjust your dose if needed. However, the dose is usually not more than 7.5 mg per day.
Children younger than 2 years of age and weighs under 9 kg (20 lbs)—Use is not recommended.
For non-psychotic anxiety:
Adults—At first, 5 milligrams (mg) 3 or 4 times a day. Your doctor may adjust your dose if needed. However, the dose is usually not more than 20 mg per day or longer than 12 weeks.
Children—Use and dose must be determined by your doctor.
For schizophrenia:
Adults—5 to 10 milligrams (mg) 3 or 4 times a day. Your doctor may adjust your dose if needed. However, the dose is usually not more than 150 mg per day.
Children 6 to 12 years of age—At first, 2.5 mg 2 or 3 times a day. Your doctor may adjust your dose if needed. However, the dose is usually not more than 10 mg on the first day and 25 mg per day.
Children 2 to 5 years of age—At first, 2.5 mg 2 or 3 times a day. Your doctor may adjust your dose if needed. However, the dose is usually not more than 10 mg on the first day and 20 mg per day.
Children younger than 2 years of age—Use and dose must be determined by your doctor.
Missed dose
If you miss a dose of prochlorperazine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Storage
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
 Detailed Prochlorperazine dosage information
