Introduction
Adquey (difamilast) is a topical phosphodiesterase 4 (PDE-4) inhibitor approved by the FDA in February 2026 for the treatment of mild-to-moderate atopic dermatitis (eczema). For years, eczema patients were often limited to steroid creams, which can cause skin thinning if used too long. Adquey is a breakthrough because it is a highly potent, non-steroidal ointment that can be used on sensitive areas (like the face and eyelids) and is safe for children as young as 2 years old.
Usage and Indications
In the US, Adquey is FDA-approved for:
- Mild-to-Moderate Atopic Dermatitis: Specifically for patients 2 years of age and older.
- It is used as a “targeted” therapy to reduce the redness, itching, and inflammation associated with eczema flares.
- Because it is non-steroidal, it is often prescribed for “maintenance” to keep flares from returning without the risks associated with chronic steroid use.
How to Take It (Dosage)
- Form: 1% Topical Ointment.
- Frequency: Typically applied twice daily to the affected areas of the skin.
- Application: Wash your hands before and after use. Apply a thin layer to the areas of eczema.
- Areas of Use: Unlike many other eczema medications, Adquey can be applied to almost any part of the body, including the face and neck, where skin is thinnest.
Side Effects
Adquey is generally very well-tolerated, but common side effects include:
- Application Site Reactions: Mild stinging, burning, or itching immediately after applying the ointment (this usually decreases after a few days of use).
- Headache: Reported in a small percentage of clinical trial participants.
- Nasopharyngitis: Minor cold-like symptoms.
Precautions and Warnings
- Infections: Do not apply Adquey to skin that is actively infected (e.g., oozing, crusting, or painful).
- Eyes and Mouth: Avoid getting the ointment directly in your eyes, nose, or mouth.
- Hypersensitivity: Stop use if you develop a severe rash or hives, which may indicate an allergic reaction to the active ingredient or the ointment base.
Interactions
- Other Topicals: In 2026, US pharmacists recommend waiting at least 30 minutes between applying Adquey and applying other moisturizers or medicated creams to ensure proper absorption.
- Systemic Meds: Because it is applied topically, very little of the drug enters the bloodstream, making it safe to use alongside most oral medications.
Storage
- Room Temperature: Store at 68°F to 77°F (20°C to 25°C).
- Do Not Freeze: Keep the tube tightly closed when not in use.
- Keep out of reach of children.
FAQ
- Is Adquey a steroid? No. It is a PDE-4 inhibitor, meaning it stops the “itch-scratch cycle” by blocking a specific enzyme in the immune system, not by using hormones.
- Can I use it on my baby? It is currently FDA-approved for children 2 years and older.
- Will it make my skin thin? No. This is the primary advantage of Adquey over traditional hydrocortisone or betamethasone creams.
- How fast does it stop the itching? Most US patients report a significant reduction in itching within the first 48 to 72 hours of use.
- Is it better than Eucrisa? Adquey is a “next-generation” PDE-4 inhibitor. In clinical trials, it showed high efficacy with potentially less “burning” sensation upon application compared to older inhibitors.
- Can I use it on my eyelids? Yes, under the guidance of a doctor, Adquey is safe for the thin skin of the face and eyelids where steroids are typically banned.
- Is there a generic version? No. As a 2026 launch, it will be brand-name only (distributed by Acrotech Biopharma) for many years.
- Will insurance cover it? Most US private insurance plans began covering Adquey in the spring of 2026. Look for “Manufacturer Co-pay Cards” to lower out-of-pocket costs.
- Do I need a prescription? Yes, Adquey is not available over-the-counter (OTC).
- Can I use it during a ‘Flare’? Yes, it is designed both to treat active flares and to prevent new ones from starting.