Omeprazole Generic: When Will Generic Omeprazole 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
Omeprazole Generic at a Glance
Four quick answers from FDA records and our estimate.
- When is the first generic expected? December 2036 About 10 years away 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 3 listed patents
- Can you buy a generic today? Not yet No company lists one for sale
Dr. Brian Staiger Explains
PharmD, BCPS · Clinical pharmacistGeneric omeprazole is expected to be available in December 2036, about 10 years away. None is for sale yet.
Why December 2036?
It is when Omeprazole’s patent 10,835,488 ends. That patent covers the product’s formulation, and once it ends, generics can go on sale as soon as the FDA approves them. We rate it toss-up: still unsettled. Just as likely to slip as to hold.
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 Omeprazole 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.
Omeprazole by the Numbers
- Reason
- Patent expiresA patent that protects the brand runs out. After that, approved generics can be sold.
- How sure
- Toss-up Still unsettled. Just as likely to slip as to hold.
- Price competition
- None filed yet No filers on record
- Brand sales
- Sales not reported
- FDA approved 2007 December 2007 FDA Orange Book
- Patents listed 3 last runs to December 2036 FDA Orange Book
- Medicare Part D spent $302.2M in 2025, for 7.6M people CMS Part D Spending by Drug
Omeprazole’s Road to a Generic
Omeprazole has had the market to itself since the FDA approved it in December 2007 (Dexcel Pharma Technologies Ltd). Its 3 listed patents run to December 2036. Generic companies have challenged its patents with the FDA since June 2015.
The first generic of Omeprazole is expected in December 2036.
Why that month: patent 10,835,488, on the product’s formulation, ends then.
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.
Omeprazole Patents and FDA Protections
Every patent and exclusivity the FDA Orange Book lists for Omeprazole’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.
The one that matters for a generic launch: patent 10,835,488, which ends in December 2036, the month the first generic is expected.
| Patent | What it covers | Protects until | Status |
|---|---|---|---|
| 12,599,565 | The product’s formulation | January 2030 | Active |
| 10,076,494 | The product’s formulation | December 2036 | Active |
| 10,835,488 Sets the expected month of generic availability | The product’s formulation | December 2036 | Active |
Source: FDA Orange Book, application 022032, 209400. Patent numbers open the patent on Google Patents.
Patent Challenges to Omeprazole
The first patent challenge to Omeprazole reached the FDA in June 2015, from one company on that first day. The FDA approved a first challenger’s generic in October 2018, and the list records no sale by a first challenger yet.
What Is a Patent Challenge?
A generic company that wants to sell its version before Omeprazole’s patents run out can tell the FDA that a patent is invalid, or that its version does not infringe it. The FDA calls this a “Paragraph IV certification.” The brand company usually sues, and the FDA then generally cannot approve that generic for up to 30 months while the case runs. To reward going first, the companies that challenge first can get a 180-day head start: the FDA cannot approve the generics that came after them until it ends.
| Product | First challenged | Companies that day | 180-day head start | First challenger’s generic | Challenged patents run to | |
|---|---|---|---|---|---|---|
| Approved | On sale | |||||
| Delayed-release tablets, 20 mg | June 2015 | 1 company | Head start no longer applies decided February 2020 Earlier: head start still held, February 2020 | October 2018 | Not yet | August 2025 |
Source: the FDA’s Paragraph IV Patent Certifications list, as of September 2026. The FDA began posting the 180-day decisions and the first challenger’s approval and first sale in June 2019: an older entry it has not updated since reads “Not posted”, and “Not yet” means the list records no such event. “Companies that day” is the FDA’s count of challenges that arrived on the first day.
Who Is Lined Up to Make Generic Omeprazole
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 Omeprazole yet.
Generic companies have challenged Omeprazole’s patents with the FDA since June 2015: see the patent challenges.
Approved by the FDA
Not yet. The FDA has not approved a generic omeprazole. Final approval often comes close to the day a generic can be sold.
For Sale in Pharmacies
Not yet. No company lists a generic omeprazole 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).
Omeprazole 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 Omeprazole, 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.
What Medicare and Medicaid Spend on Omeprazole
Big public spending is part of why generic makers line up for a medicine, and why its first generic matters beyond the pharmacy counter. Figures are before manufacturer rebates, which are confidential.
Medicare Part D Spending
What Medicare drug plans spent on Omeprazole, before manufacturer rebates.
- $75M
- January to March 2026, the latest CMS has posted
For 5,288,387 people, about $11 per prescription fill - $302.2M
- 2025, the whole year
For 7,562,092 people, about $10 per prescription fill
See the numbers
| Period | Spending | People | Per fill |
|---|---|---|---|
| January to March 2026 | $75,012,987 | 5,288,387 | $10.59 |
| 2025 | $302,248,584 | 7,562,092 | $10.43 |
Source: CMS Medicare Part D Spending by Drug, matched by the brand name Omeprazole only, so no generic is counted in it. What CMS says it is used for: Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers). It works by decreasing the amount of acid your stomach makes.
Omeprazole Strengths and Forms
| Strength | Form | How it is taken | Approved | Status |
|---|---|---|---|---|
| 20MG | Tablet, delayed release | Oral | December 2007 | Over the counter reference product |
| 20MG | Tablet, orally disintegrating, delayed release | Oral | July 2017 | Over the counter reference product |
Source: FDA Orange Book, Dexcel Pharma Technologies Ltd. Listed for sale today by Walgreen Company, Major Pharmaceuticals, Rite Aid Corporation, Kroger Company and 8 more (FDA NDC Directory).
Omeprazole NDC Codes and Packages
Each Omeprazole 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 |
|---|---|---|---|
| 00904-5834-41 | 20 mg tablet, delayed release | carton of 14 blister packs of 1 tablet | Major Pharmaceuticals |
| 00904-5834-42 | 20 mg tablet, delayed release | carton of 3 cartons of 14 blister packs of 1 tablet | Major Pharmaceuticals |
| 00904-5834-71 | 20 mg tablet, delayed release | carton of 2 cartons of 14 blister packs of 1 tablet | Major Pharmaceuticals |
| 11822-0453-01 | 20 mg tablet, delayed release | carton of 3 bottles of 14 tablets | Rite Aid Corporation |
| 11822-0453-01 | 20 mg tablet, delayed release | carton of 3 bottles of 14 tablets | Rite Aid Corporation |
| 11822-0453-02 | 20 mg tablet, delayed release | bottle of 14 tablets | Rite Aid Corporation |
| 11822-0453-02 | 20 mg tablet, delayed release | bottle of 14 tablets | Rite Aid Corporation |
| 11822-0453-03 | 20 mg tablet, delayed release | carton of 2 bottles of 14 tablets | Rite Aid Corporation |
Show the other 72 Omeprazole packages
| NDC | Product | Package | Company |
|---|---|---|---|
| 11822-0453-03 | 20 mg tablet, delayed release | carton of 2 bottles of 14 tablets | Rite Aid Corporation |
| 11822-1040-01 | 20 mg tablet, orally disintegrating, delayed release | carton of 3 cartons of 14 blister packs of 1 tablet | Rite Aid Corporation |
| 11822-1040-02 | 20 mg tablet, orally disintegrating, delayed release | carton of 14 blister packs of 1 tablet | Rite Aid Corporation |
| 11822-1040-02 | 20 mg tablet, orally disintegrating, delayed release | carton of 14 blister packs of 1 tablet | Rite Aid Corporation |
| 00363-0007-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Walgreen Company |
| 00363-0007-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Walgreen Company |
| 00363-0007-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Walgreen Company |
| 00363-0007-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Walgreen Company |
| 00363-0915-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Walgreen Company |
| 00363-0915-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Walgreen Company |
| 00363-0915-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Walgreen Company |
| 00363-0915-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Walgreen Company |
| 00363-0915-30 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 2 cartons of 14 blister packs of 1 tablet | Walgreen Company |
| 00363-0915-30 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 2 cartons of 14 blister packs of 1 tablet | Walgreen Company |
| 00363-0915-55 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 cartons of 14 blister packs of 1 tablet | Walgreen Company |
| 00363-0915-55 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 cartons of 14 blister packs of 1 tablet | Walgreen Company |
| 00363-6101-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Walgreen Company |
| 00363-6101-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Walgreen Company |
| 11822-0915-04 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 2 bottles of 14 tablets | Rite Aid Corporation |
| 11822-0915-04 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 2 bottles of 14 tablets | Rite Aid Corporation |
| 11822-0915-05 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Rite Aid Corporation |
| 11822-0915-05 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Rite Aid Corporation |
| 11822-0915-06 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Rite Aid Corporation |
| 11822-0915-06 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Rite Aid Corporation |
| 11822-1190-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Rite Aid Corporation |
| 11822-1190-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Rite Aid Corporation |
| 30142-0474-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Kroger Company |
| 30142-0557-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Kroger Company |
| 30142-0557-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Kroger Company |
| 30142-0557-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Kroger Company |
| 30142-0557-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Kroger Company |
| 30142-0557-30 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 2 cartons of 14 blister packs of 1 tablet | Kroger Company |
| 30142-0557-55 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 cartons of 14 blister packs of 1 tablet | Kroger Company |
| 30142-0557-55 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 cartons of 14 blister packs of 1 tablet | Kroger Company |
| 30142-0557-74 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 14 blister packs of 1 tablet | Kroger Company |
| 30142-0557-74 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 14 blister packs of 1 tablet | Kroger Company |
| 30142-0593-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Kroger Company |
| 30142-0593-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Kroger Company |
| 30142-0593-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Kroger Company |
| 30142-0593-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Kroger Company |
| 37808-0401-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | H E B |
| 37808-0401-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | H E B |
| 37808-0401-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | H E B |
| 37808-0401-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | H E B |
| 37808-0915-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | H E B |
| 37808-0915-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | H E B |
| 37808-0915-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | H E B |
| 37808-0915-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | H E B |
| 37808-0915-30 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 2 cartons of 14 blister packs of 1 tablet | H E B |
| 37808-0915-30 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 2 cartons of 14 blister packs of 1 tablet | H E B |
| 37808-0915-55 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 cartons of 14 blister packs of 1 tablet | H E B |
| 37808-0915-74 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 14 blister packs of 1 tablet | H E B |
| 41250-0401-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Meijer Distribution Inc |
| 41250-0401-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Meijer Distribution Inc |
| 41250-0401-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Meijer Distribution Inc |
| 41250-0401-03 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 3 bottles of 14 tablets | Meijer Distribution Inc |
| 41250-0915-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Meijer Distribution Inc |
| 41250-0915-01 | OMEPRAZOLE 20 mg/1 tablet, delayed release | bottle of 14 tablets | Meijer Distribution Inc |
| 41250-0915-02 | OMEPRAZOLE 20 mg/1 tablet, delayed release | carton of 2 bottles of 14 tablets | Meijer Distribution Inc |
| 00363-1819-55 | OMEPRAZOLE 20 mg/1 tablet, orally disintegrating, delayed release | carton of 3 cartons of 14 blister packs of 1 tablet | Walgreen Company |
| 00363-1819-55 | OMEPRAZOLE 20 mg/1 tablet, orally disintegrating, delayed release | carton of 3 cartons of 14 blister packs of 1 tablet | Walgreen Company |
| 00363-1819-74 | OMEPRAZOLE 20 mg/1 tablet, orally disintegrating, delayed release | carton of 14 blister packs of 1 tablet | Walgreen Company |
| 00363-1819-74 | OMEPRAZOLE 20 mg/1 tablet, orally disintegrating, delayed release | carton of 14 blister packs of 1 tablet | Walgreen Company |
| 30142-0394-55 | OMEPRAZOLE 20 mg/1 tablet, orally disintegrating, delayed release | carton of 3 cartons of 14 blister packs of 1 tablet | Kroger Company |
| 30142-0394-55 | OMEPRAZOLE 20 mg/1 tablet, orally disintegrating, delayed release | carton of 3 cartons of 14 blister packs of 1 tablet | Kroger Company |
| 37808-0354-55 | OMEPRAZOLE 20 mg/1 tablet, orally disintegrating, delayed release | carton of 42 blister packs of 1 tablet | H E B |
| 37808-0354-55 | OMEPRAZOLE 20 mg/1 tablet, orally disintegrating, delayed release | carton of 42 blister packs of 1 tablet | H E B |
| 37808-0354-74 | OMEPRAZOLE 20 mg/1 tablet, orally disintegrating, delayed release | carton of 14 blister packs of 1 tablet | H E B |
| 37808-0354-74 | OMEPRAZOLE 20 mg/1 tablet, orally disintegrating, delayed release | carton of 14 blister packs of 1 tablet | H E B |
| 41250-0349-55 | OMEPRAZOLE 20 mg/1 tablet, orally disintegrating, delayed release | carton of 3 cartons of 14 blister packs of 1 tablet | Meijer Distribution Inc |
| 41250-0349-55 | OMEPRAZOLE 20 mg/1 tablet, orally disintegrating, delayed release | carton of 3 cartons of 14 blister packs of 1 tablet | Meijer Distribution Inc |
| 41250-0349-74 | OMEPRAZOLE 20 mg/1 tablet, orally disintegrating, delayed release | carton of 14 blister packs of 1 tablet | Meijer Distribution Inc |
Source: the FDA NDC Directory, current listings only. Only packages sold under Omeprazole’s own FDA approval (NDA 22032, NDA 209400) are listed, never a generic. Some codes belong to companies that repackage Omeprazole: it is the same medicine in a different package.
What a Generic Omeprazole Means for You
Nothing Changes Until It Is in Pharmacies
Until a generic is actually for sale, keep filling Omeprazole 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 Omeprazole”. 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 Omeprazole
Is there a generic for Omeprazole right now?
No. As of October 9, 2026 no generic omeprazole is listed for sale in the FDA NDC Directory.
When will Omeprazole go generic?
December 2036 is the expected month, and that is toss-up but not certain. It is when Omeprazole’s patent 10,835,488 ends. That patent covers the product’s formulation, and once it ends, generics can go on sale as soon as the FDA approves them.
Will generic omeprazole be the same as Omeprazole?
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 Omeprazole?
Not yet. The FDA Orange Book lists no approved generic version of Omeprazole.
When does the Omeprazole patent expire?
The FDA Orange Book lists 3 patents for Omeprazole; the last runs to December 2036. The one behind the expected month is patent 10,835,488, which ends in 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 month on this page (December 2036) weighs all of that.
Has anyone challenged the Omeprazole patents?
Yes. The first patent challenge to Omeprazole reached the FDA in June 2015, from one company on that first day. The FDA approved a first challenger’s generic in October 2018, and the list records no sale by a first challenger yet. A patent challenge (a “Paragraph IV certification”) is a generic company telling the FDA that a patent listed for the brand is invalid or will not be infringed by its version. The first companies to file one can earn a 180-day head start, during which the FDA cannot approve the generics that filed after them.
Changes to This Projection
- First generic expected December 2036 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
- QdoloTramadol Hydrochloride2027 to 2028
- TrulancePlecanatide2031 to 2032
- ZerviateCetirizine HydrochlorideJanuary 2033
- LynavoyLinerixibatOctober 2041
- CardamystEtripamilJuly 2042
- GiazoBalsalazide DisodiumTBD no date yet
About Omeprazole
- Generic name omeprazole
- How it is taken By mouth
- Company Dexcel Pharma Technologies Ltd
- Patent challenges Since June 2015 (FDA)
- More drugs Brand-name drugs starting with O
- Have a question? A pharmacist answers, free. Ask about Omeprazole
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 Paragraph IV Patent Certifications list, CMS Medicare Part D Spending by Drug, FDA, Generic Competition and Drug Prices (2019). Updated October 9, 2026. Information, not medical advice.