Acetic acid (otic)

Common Brands Vosol (brand no longer available)
Drug Class
Controlled Substance Classification
Not a controlled medication
Generic Status
Lower-cost generic available
Prescription only
Kristianne Hannemann, PharmD
Kristianne Hannemann, PharmD
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Medically reviewed by Kristianne Hannemann, PharmD last update on 20/12/2023


Acetic Acid (otic) is a therapeutic solution specifically formulated for otic use, meaning it is designed for application in the ear. This solution typically consists of acetic acid, a weak organic acid known for its antimicrobial properties, often combined with other ingredients to enhance its effectiveness. Acetic Acid (otic) is commonly used to treat various ear conditions, particularly Otitis Externa.

The primary mechanism of action of Acetic Acid (otic) revolves around its ability to create an acidic environment in the ear. This acidity helps inhibit the growth and proliferation of bacteria and fungi, making it particularly effective in treating infections of the external ear canal. By altering the pH of the ear, Acetic Acid creates an inhospitable environment for pathogens, thereby facilitating the healing process.



Prescription only

Pregnancy & Lactation