Acetic Acid

FDA Drug Information • Also known as: Acetic Acid, Aceticum Acidum

Brand Names
Acetic Acid, Aceticum Acidum
Route
AURICULAR (OTIC)
Dosage Form
SOLUTION
Product Type
HUMAN PRESCRIPTION DRUG

Description

DESCRIPTION Acetic Acid Otic Solution, USP is a solution of acetic acid (2%) in a propylene glycol vehicle containing propylene glycol diacetate (3%), benzethonium chloride (0.02%), and sodium acetate (0.015%). The empirical formula for acetic acid is CH 3 COOH, with a molecular weight of 60.05. The structural formula is: Acetic Acid is available as a nonaqueous otic solution buffered at pH 3 for use in the external ear canal. Chemical Structure

What Is Acetic Acid Used For?

INDICATIONS AND USAGE For the treatment of superficial infections of the external auditory canal caused by organisms susceptible to the action of the antimicrobial.

Dosage and Administration

DOSAGE AND ADMINISTRATION Carefully remove all cerumen and debris to allow acetic acid to contact infected surfaces directly. To promote continuous contact, insert a wick of cotton saturated with acetic acid into the ear canal; the wick may also be saturated after insertion. Instruct the patient to keep the wick in for at least 24 hours and to keep it moist by adding 3 to 5 drops of acetic acid every 4 to 6 hours. The wick may be removed after 24 hours but the patient should continue to instill 5 drops of acetic acid 3 or 4 times daily thereafter, for as long as indicated. In pediatric patients, 3 to 4 drops may be sufficient due to the smaller capacity of the ear canal.

Side Effects (Adverse Reactions)

ADVERSE REACTIONS Stinging or burning may be noted occasionally; local irritation has occurred very rarely.

Warnings and Precautions

WARNINGS Discontinue promptly if sensitization or irritation occurs.

Contraindications

CONTRAINDICATIONS Hypersensitivity to acetic acid or any of the ingredients. Perforated tympanic membrane is considered a contraindication to the use of any medication in the external ear canal.

How Supplied

HOW SUPPLIED Acetic Acid Otic Solution, USP, containing 2% acetic acid, is available in 15 mL NDC 68071-1739-5 measured-drop, safety-tip plastic bottles.

About This Information

This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.

What are side effects?

Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.

What are drug interactions?

Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.