Other Brands/Names

Boric acid/alcohol otic, Auro-Dri, EarDry, Santadex

How It Works

Boric acid is a topical medication with mild antibacterial and antifungal properties. It works by creating an acidic environment that helps prevent microbial growth. In some formulations, boric acid is combined with isopropyl alcohol to treat bacterial and fungal ear infections. The exact way boric acid works is not entirely understood, but the alcohol component helps dry the ear canal, reducing moisture that can promote microbial growth.

Indications

Boric acid ear drops are typically used to treat bacterial and fungal infections in the outer ear, also known as otitis externa or swimmer's ear. This condition often results from activities like swimming or bathing, but can also occur due to other factors like sweating or humid environments.

Contraindications

1. History of hypersensitivity or allergy to boric acid

2. Children under 2 years of age

Side Effects

Possible side effects may include:

• Severe pain or a burning sensation

• Rash, redness, or irritation in the ear

• Dryness in the ear canal

If any of these symptoms occur, it is important to discontinue use and consult a healthcare professional immediately.

Types

• Boric acid 2.75% / isopropyl alcohol ear drops (30 ml)

• Boric acid 3% / zinc sulfate 0.5% ear drops (20 ml)

Dosage

For treating swimmer's ear, apply 3-8 drops to the affected ear.

Safety

Pregnancy: Category C

This drug must be used only if benefits outweigh potential risks, as animal studies indicate possible risks and human studies are unavailable. 

The medication does not pass into breast milk, but pregnant or breastfeeding individuals should consult a doctor before use.

Drug Interactions

The use of boric acid may increase the excretion of excess vitamin B2 (riboflavin) from the body.

Looking for more information about other drugs? Click here!