Extina
Extina is a topical antifungal medication containing ketoconazole, available as a foam formulation for application to the scalp and skin. It is primarily prescribed to treat seborrheic dermatitis, a common inflammatory skin condition characterized by redness, scaling, and itching, particularly affecting the scalp and face.
Extina is a topical antifungal foam used to treat seborrheic dermatitis of the scalp and skin.
Key facts at a glance
- RxNorm
- 728511
- Generic
- Extina
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Extina is indicated for the topical treatment of seborrheic dermatitis in adults and adolescents. It may also be prescribed off-label for other fungal skin infections such as tinea (ringworm) when appropriate.
The active ingredient ketoconazole is an antifungal agent. Although the specific mechanism is not detailed for this formulation, ketoconazole generally works by inhibiting the synthesis of ergosterol, a critical component of fungal cell membranes, thereby disrupting fungal growth and replication.
Extina is for topical use only and should not be ingested. Avoid contact with eyes, nose, and mouth. Common side effects may include application site reactions such as burning, stinging, or irritation. Patients should use the medication as directed by their healthcare provider and complete the full course of treatment. Pregnant or breastfeeding individuals should consult their doctor before use.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy