Browse the corpus
Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.
6 passages
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%), sodium acetate (0.015%), and citric acid. The molecular formula for acetic acid is CH 3 COOH, with a molecular weight of 60.05. The structural formula is: Acetic acid otic solution, USP is available as a nonaqueous otic solution buffered at pH 3 for use in the external ear canal. Chemical Structure
CLINICAL PHARMACOLOGY Acetic acid is antibacterial and antifungal; propylene glycol is hydrophilic and provides a low surface tension; benzethonium chloride is a surface active agent that promotes contact of the solution with tissues.
CONTRAINDICATIONS Hypersensitivity to acetic acid otic solution or any of the ingredients. Perforated tympanic membrane is considered a contraindication to the use of any medication in the external ear canal.
ADVERSE REACTIONS Stinging or burning may be noted occasionally; local irritation has occurred very rarely. To report SUSPECTED ADVERSE REACTIONS, contact Saptalis Pharmaceuticals, LLC at 1-833-727-8254 or FDA at 1800-FDA-1088 or www.fda.gov/medwatch.
DOSAGE AND ADMINISTRATION Carefully remove all cerumen and debris to allow acetic acid otic solution to contact infected surfaces directly. To promote continuous contact, insert a wick of cotton saturated with acetic acid otic solution 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 drops to 5 drops of acetic acid otic solution every 4 hours to 6 hours. The wick may be removed after 24 hours but the patient should continue to instill 5 drops of acetic acid otic solution 3 times or 4 times daily thereafter, for as long as indicated. In pediatric patients, 3 drops to 4 drops may be sufficient due to the smaller capacity of the ear canal.
STORAGE Store at 20° to 25°C (68° to 77°F) [see USP Controlled Room Temperature]. Keep container tightly closed. Manufactured by: Saptalis Pharmaceuticals, LLC Hauppauge, NY 11788 Distributed by: TruPharma, LLC Tampa, FL 33609 Rev. 03/20-R1