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

Last Reviewed: Mar 22, 2023

Common Questions


Common Questions about Polytrim (POLYMYXIN B / TRIMETHOPRIM)


Is Polytrim a steroid?

No, Polytrim is not a steroid. It contains two antibiotics, polymyxin B and trimethoprim.



How long do you use Polytrim?

You use Polytrim every 3 hours for 7-10 days. This is the typical dosing. However, your doctor may ask you to use this medicine more frequently or for a longer time if you have a severe infection. Follow your health care professional’s instructions and use Polytrim exactly as prescribed.



How long does it take for Polytrim to work?

Polytrim starts working after the first dose. However, it may take a couple of days for you to notice an improvement in your symptoms. If you don’t notice any change in your symptoms after 3 days of using Polytrim, contact your doctor. You may need a different antibiotic.



Is Polytrim safe for babies?

Polytrin is safe for babies over the age of 2 months. This medicine is not FDA approved for use in newborns.



Do Polytrim drops burn?

Polytrim drops can cause mild burning, stinging, redness, and itching. These are temporary side effects. Tell your doctor if these side effects are severe or do not go away.



What is the price of Polytrim without insurance?

Without insurance, Polytrim can be as high as $81.99, but with a free BuzzRx prescription discount coupon, you could pay as low as $8.84 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. While generics tend to have the best savings, you can also use your BuzzRx card and coupons to purchase brand-name versions. 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 Polytrim with insurance?

Ask your pharmacist or insurance provider for your copay price on Polytrim—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 Polytrim. 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.