Adquey Generic: When Will Generic Difamilast Be Available?
This page is aggregated from FDA records, court filings and company announcements. Coded and designed by Dr. Brian Staiger, PharmD, BCPS
Updated October 9, 2026 How we build our data
Adquey Generic at a Glance
Four quick answers from FDA records and our estimate.
- When is the first generic expected? 2037 to 2038 A wide window Why then?
- Has the FDA approved a generic? Not yet None in the FDA’s records yet Why not yet?
- When does the brand’s protection end? December 2036 The last of 2 listed patents
- Can you buy a generic today? Not yet No company lists one for sale
Dr. Brian Staiger Explains
PharmD, BCPS · Clinical pharmacistGeneric difamilast is expected to be available between 2037 and 2038. None is for sale yet.
Why 2037 to 2038?
The patent fight is likely to end in an agreement that sets the launch. The terms are not public yet. We rate it probable: more likely than not, but it can still move.
Why hasn’t the FDA approved a generic yet?
That is normal before a launch. The FDA usually can’t give a generic its final approval while a patent or exclusivity still blocks it, so final approval often comes close to the day the generic can be sold. No company holds a “tentative” approval yet either (the FDA’s word for a generic that is ready but still blocked).
Will the generic cost less?
Usually, but no company is recorded as having applied to make one yet, and a single company usually brings only a modest drop. See the price pattern
What should I do now?
Keep taking Adquey as prescribed. When a generic arrives, your pharmacy may switch you to it automatically, and it may look different. What a generic means for you
Our month is only an estimate based on available information, so we never name a day.
Adquey by the Numbers
- Reason
- Settlement expectedThe patent fight is likely to end in an agreement that sets the launch. The terms are not public yet.
- How sure
- Probable More likely than not, but it can still move.
- Price competition
- None filed yet No filers on record
- Brand sales
- Sales not reported
- FDA approved 2026 February 2026 FDA Orange Book
- Patents listed 2 last runs to December 2036 FDA Orange Book
Adquey’s Road to a Generic
Adquey has had the market to itself since the FDA approved it in February 2026 (Acrotech Biopharma Inc). Its FDA protection (new chemical entity) runs to February 2031. Its 2 listed patents run to December 2036.
The first generic of Adquey is expected between 2037 and 2038.
Why that month: the patent fight is likely to end in an agreement that sets the launch. The terms are not public yet.
Each bar runs from the brand’s approval to the day that protection ends. The green band is our projection for the first generic: a month, never a day, because legal dates move and a generic reaches shelves days to weeks after it is allowed. Sources: FDA Orange Book; the expected month from court records and company announcements.
Adquey Patents and FDA Protections
Every patent and exclusivity the FDA Orange Book lists for Adquey’s own applications. A protection running past the expected month does not mean the date is wrong: a settlement or a court ruling can let a generic in before a patent ends, and a patent on one formulation or use does not block every generic.
| Patent | What it covers | Protects until | Status |
|---|---|---|---|
| RE46792 | The active ingredient; the product’s formulation; a way of using it (U-4445) | March 2028 | Active |
| 10,588,893 | The active ingredient; the product’s formulation | December 2036 | Active |
| Exclusivity | What it means | Ends | Status |
|---|---|---|---|
| New chemical entity NCE | Five years of protection for a medicine whose active ingredient the FDA had never approved before. | February 2031 | Active |
Source: FDA Orange Book, application 219474. Patent numbers open the patent on Google Patents.
Who Is Lined Up to Make Generic Difamilast
Three steps stand between a brand and a generic you can buy: a company applies to the FDA, the FDA approves it, and the company starts selling it.
Applied to the FDA
No company is recorded as having applied to the FDA to make a generic Adquey yet.
Approved by the FDA
Not yet. The FDA has not approved a generic difamilast. Final approval often comes close to the day a generic can be sold.
For Sale in Pharmacies
Not yet. No company lists a generic difamilast for sale with the FDA.
Sources: how many companies have applied, from court records and company announcements; approved generics from the FDA Orange Book; tentative approvals from Drugs@FDA; what is for sale from the FDA NDC Directory. The FDA does not disclose an application before it approves it (21 CFR 314.430).
Adquey Price: What Pharmacies Pay and What Generics Usually Do
What a Generic Could Cost
How we estimate it. The national survey of what pharmacies pay (NADAC) has no recent price for Adquey, so we cannot show dollars. Here is the FDA’s finding of how far the price pharmacies pay usually falls as generic companies join: about 31% with one company, 44% with two, 73% with four and over 95% with six or more (the typical drop for every drug whose first generic came out from 2015 to 2017).
Median prices pharmacies paid for the generic (invoice prices), compared with the brand’s price before generic entry, from FDA’s 2019 analysis “Generic Competition and Drug Prices”. At the manufacturer’s price FDA found steeper drops (about 39%, 54%, 79% and over 95%), the figures quoted elsewhere on this tracker. A typical pattern, not a price quote for this medicine.
Adquey Strengths and Forms
| Strength | Form | How it is taken | Approved | Status |
|---|---|---|---|---|
| 1% | Ointment | Topical | February 2026 | Prescription reference product |
Source: FDA Orange Book, Acrotech Biopharma Inc. Listed for sale today by Acrotech Biopharma Inc (FDA NDC Directory).
Adquey NDC Codes and Packages
Each Adquey package sold today has its own NDC, the product number printed on the box and on the pharmacy label. Open one to see that package’s details, what pharmacies pay for it and its patent timeline.
| NDC | Product | Package | Company |
|---|---|---|---|
| 72893-0017-07 | DIFAMILAST 10 mg/g ointment | tube of 3 g | Acrotech Biopharma Inc |
| 72893-0017-08 | DIFAMILAST 10 mg/g ointment | tube of 27 g | Acrotech Biopharma Inc |
| 72893-0017-09 | DIFAMILAST 10 mg/g ointment | tube of 85 g | Acrotech Biopharma Inc |
Source: the FDA NDC Directory, current listings only. Only packages sold under Adquey’s own FDA approval (NDA 219474) are listed, never a generic. Some codes belong to companies that repackage Adquey: it is the same medicine in a different package.
What a Generic Adquey Means for You
Nothing Changes Until It Is in Pharmacies
Until a generic is actually for sale, keep filling Adquey as usual. When one arrives, there is nothing you need to sign up for.
Your Pharmacy May Switch You Automatically
Every state lets pharmacists fill a brand-name prescription with an FDA-approved generic rated as equivalent to it, and about 19 states require them to, unless your prescriber writes “dispense as written” or “brand medically necessary” on the prescription. Some states ask the pharmacist to tell you, or to get your OK first. A study of every state’s law has the details.
It Will Probably Look Different
US trademark law does not let a generic look exactly like the brand, so the color, shape or markings usually change. The active ingredient, strength and form are the same. An “authorized generic,” made by or for the brand’s own company, can look identical. The FDA explains.
Your Insurance May Change Too
Once a lower-cost version is available, many insurance plans charge more for the brand, or stop covering it. Your plan’s drug list (formulary) says how.
Until a generic is on US pharmacy shelves, be careful with websites that offer “generic Adquey”. The FDA warns that unlicensed online pharmacies sell counterfeit and unapproved medicines; its BeSafeRx page shows how to check a pharmacy.
Questions people ask about Adquey
Is there a generic for Adquey right now?
No. As of October 9, 2026 no generic difamilast is listed for sale in the FDA NDC Directory.
When will Adquey go generic?
2037 to 2038 is the expected window, and that is probable but not certain. The patent fight is likely to end in an agreement that sets the launch. The terms are not public yet.
Will generic difamilast be the same as Adquey?
Yes in the ways that matter: the same active ingredient, strength and form, with proof that it reaches your blood the same way. Inactive ingredients can differ, which is why some people notice a different look or taste.
How much will the generic cost?
Nobody can say for sure before launch. No company is recorded as having applied to the FDA to make one yet, and a single company usually brings only a modest drop.
Has the FDA approved a generic Adquey?
Not yet. The FDA Orange Book lists no approved generic version of Adquey.
When does the Adquey patent expire?
The FDA Orange Book lists 2 patents for Adquey; the last runs to December 2036. A patent date is not the launch date: settlements and court rulings often bring a generic earlier, and FDA approval or a company’s own plans can make it later. The expected window on this page (2037 to 2038) weighs all of that.
Changes to This Projection
- First generic expected 2037 to 2038 on this month’s schedule. A line is added here whenever a monthly update moves the month, the reason or how sure it is.
Every change to the expected month is logged here with the month we saw it.
Also Going Generic
- FexinidazoleFexinidazoleJuly 2028
- BijuvaEstradiol and ProgesteroneMay 2032
- PhexxCitric Acid, L-Lactic Acid, and Potassium BitartrateMarch 2033
- TavneosAvacopanJanuary 2034
- XphozahTenapanor HydrochlorideApril 2034
- Levothyroxine SodiumLevothyroxine SodiumJuly 2036
About Adquey
- Generic name difamilast
- How it is taken On the skin
- Company Acrotech Biopharma Inc
- More drugs Brand-name drugs starting with A
- Have a question? A pharmacist answers, free. Ask about Adquey
Sources. The expected month: FDA Paragraph IV Patent Certifications list, federal court records, company announcements and securities filings (settlement dates, launch plans, sales). The record on this page: FDA Orange Book, Drugs@FDA (tentative approvals), FDA NDC Directory, FDA, Generic Competition and Drug Prices (2019). Updated October 9, 2026. Information, not medical advice.