Hydroquinone
Hydro 40 is a topical corticosteroid medication containing hydrocortisone at a 40 mg/mL concentration. It is applied to the skin to reduce inflammation, itching, and redness associated with various dermatological conditions. This medication is typically prescribed for inflammatory and allergic skin reactions that respond to mild-to-moderate corticosteroid therapy.
Hydro 40 is a topical corticosteroid used to treat inflammatory and itchy skin conditions by reducing inflammation and suppressing local immune responses.
Key facts at a glance
- RxNorm
- 727272
- Generic
- Hydro 40
- 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.
Hydro 40 is used to treat inflammatory and pruritic (itchy) skin conditions including eczema, dermatitis, allergic reactions, psoriasis, and other conditions responsive to topical corticosteroid therapy.
As a corticosteroid, hydrocortisone works by suppressing the inflammatory response and reducing the activity of immune cells in the skin. It decreases the production of inflammatory chemicals and helps relieve associated symptoms like redness, swelling, itching, and discomfort.
This is a topical medication for external use only and should not be applied to open wounds, infected areas, or the face unless specifically directed by a healthcare provider. Long-term use should be avoided as it may cause skin thinning. Patients should follow prescribed dosage and duration carefully, and consult their healthcare provider if symptoms do not improve.
Official drug label
WellAlly may earn a referral fee from linked resources at no extra cost to you. Editorial content is never influenced by commercial relationships.
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