Boric Acid Ear Drop


In stock


Boric acid is used to treat an outer ear infection (external otitis). It works by stopping the growth of bacteria and fungus. Treating the infection reduces pain and swelling in the ear. Wetness in the ear canal can help bacteria and fungus to grow.


A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including rash, itching/swelling (especially of the ear/face/tongue/throat), severe dizziness, trouble breathing.

Dosing & Uses


Dosage Forms & Strengths

boric acid/alcohol otic

otic solution

  • (boric acid 2.75%)/isopropyl alcohol

Swimmer’s Ear





Contact physician for severe pain/burning after instilling drops

Discontinue if rash, erythema, or dry skin develops

Pregnancy & Lactation

Pregnancy category: C

Lactation: Not secreted into breast milk

Pregnant or breastfeeding patients should seek the advice of health professional before using OTC drugs

Pregnancy Categories

A: Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.

B: Maybe acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies are done and showed no risk.C: Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done.D: Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk.X: Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist.


Mechanism of Action

Boric acid is a weak topical anti-infective agent

Isopropyl alcohol is used as a drying agent

Instill 3-8 gtt in each ear

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