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Carbamide peroxide ear drops

Brand names: Debrox, Murine Ear

Carbamide peroxide ear drops soften and loosen earwax buildup.

Brand namesDebrox, Murine Ear
Type of medicineEarwax softener
Prescription?Over the counter
ImportantThis page is general information, not a prescription. Don't start, stop, or change a medicine without talking to your provider or pharmacist.

Overview

Bubbling and a crackling sound are normal.

What it's used for

  • Earwax buildup

How to take it

  • Tilt your head, put 5 to 10 drops in the ear, and stay tilted for several minutes.
  • Use twice a day for up to 4 days.
  • Gently flush with warm water using a bulb syringe if needed.

Your dose depends on your health and other medicines. Always follow your prescription label, and ask your pharmacist if anything is unclear.

Side effects

Common side effects

  • Fullness or bubbling
  • Mild irritation
Call your provider todayEar pain, drainage, dizziness, or hearing loss

Warnings

  • Don't use with ear tubes, a hole in the eardrum, ear pain, or drainage.
  • Don't use cotton swabs to dig out wax.

Other medicines, foods, and alcohol

  • None known.

Tell your provider and pharmacist about every medicine, vitamin, and supplement you take.

Pregnancy and breastfeeding

Generally fine. Ask your provider.

Missed doses, overdose, and storage

If you miss a dose

Apply it when you remember, then go back to your usual schedule. Don't apply extra to make up for it.

If someone takes too much

Call Poison Control at 1-800-222-1222 or get help online at poison.org. Call 911 if the person collapses, has a seizure, has trouble breathing, or can't be woken.

Storing it

Store at room temperature, away from heat and moisture (not in the bathroom), and out of reach of children and pets.

Conditions it's used for

Sources

Last updated 2026-11-13.