Promethazine

Medically Reviewed by Dr. Harshi Dhingra, M.D.

Last Reviewed: Aug 04, 2022

Common Questions


Common Questions about Promethazine


How long does it take for promethazine to kick in?

Promethazine works quickly, and you should start to see an improvement in your symptoms within 20 minutes. The effects of promethazine usually last for 4-6 hours but can last for up to 12 hours.



Is promethazine a controlled substance? Is promethazine a narcotic?

Promethazine is not a narcotic, and it is not a controlled substance. However, a combination of promethazine hydrochloride and codeine is a Schedule V controlled substance and should be given with caution to people with a history of drug abuse.



What happens if you drink alcohol with promethazine?

Alcohol can worsen promethazine's side effects, including drowsiness, dizziness, uncontrolled movements, seizures, irregular heartbeat, and changes in body temperature.



Is promethazine good for anxiety?

While promethazine can cause sedation and other effects similar to anti-anxiety medications, it is not an FDA-approved treatment to relieve anxiety.



Is promethazine good for sleep?

Promethazine can cause drowsiness and may be used for sedation before surgery. However, it is not a sleep aid or an approved treatment for chronic insomnia (trouble falling or staying asleep).  



What is the price of promethazine without insurance?

Without insurance, promethazine can be as high as $21.59, but with a free BuzzRx prescription discount coupon, you could pay as low as $8.85 for the most common version of this medication. Use the BuzzRx drug price look-up tool to find the lowest discounted price, and be sure to enter the correct dosage, form, and quantity for the most accurate pricing. It never hurts to ask your pharmacist to try BuzzRx when filling or refilling any of your prescription drugs—whether you have insurance or not.



What is the price of promethazine with insurance?

Ask your pharmacist or insurance provider for your copay price on promethazine—copay amounts vary depending on the type of insurance plan you have and if there is a deductible to reach before prescription drug coverage begins.  You could save up to 80% on your prescription medication with a free BuzzRx discount coupon for promethazine. When using the BuzzRx lookup tool to find the price of your medicine, be sure to enter the correct dosage, form, and quantity to receive the most accurate discounted pricing. It never hurts to ask your pharmacist to try BuzzRx when filling or refilling any of your prescriptions—whether you have insurance or not.