Why Is Nabumetone So Hard to Find? [Explained for 2026]

If you've ever arrived at a pharmacy expecting to pick up your nabumetone prescription and left empty-handed, you're not alone. Even though nabumetone is a widely prescribed generic NSAID with no active FDA shortage, many patients report difficulty finding it at their usual pharmacy. Understanding why this happens — and what to do about it — can save you a lot of frustration.

What Is Nabumetone and Why Is It Prescribed?

Nabumetone is a prescription nonsteroidal anti-inflammatory drug (NSAID) approved by the FDA in December 1991 for treating osteoarthritis and rheumatoid arthritis. It works as a prodrug — meaning it doesn't become active until your liver converts it to its active metabolite, 6-methoxy-2-naphthylacetic acid (6MNA). This process gives nabumetone a relatively gentle profile on the stomach compared to some older NSAIDs, which is one reason it remains popular despite being nearly 35 years old.

Originally sold under the brand name Relafen (now discontinued), nabumetone is available only as a generic today. Tablets come in 500 mg, 750 mg, and 1,000 mg strengths. The 1,000 mg strength is still sold under the brand name Relafen DS. While there are no active FDA-declared shortages, patients do encounter gaps in availability at individual pharmacies — and there are specific reasons why.

Is Nabumetone Actually in Shortage?

As of 2026, nabumetone is not on the FDA's official drug shortage list. Generic nabumetone is manufactured by multiple suppliers and distributed widely. However, the absence of a national shortage does not mean every pharmacy has every strength in stock at all times. Individual pharmacies stock medications based on their purchasing agreements, local demand, and shelf-space constraints — and a lower-volume generic like nabumetone can simply run out or be deprioritized.

Why Does Nabumetone Availability Vary by Pharmacy?

Several factors cause pharmacy-to-pharmacy variation in nabumetone stock:

Lower prescription volume: Nabumetone generates roughly 800,000 U.S. prescriptions per year — making it moderately prescribed but far below the highest-volume generics. Pharmacies may stock less or order less frequently.

Multiple manufacturers: Generic nabumetone is made by several manufacturers. When one supplier has a production delay or quality issue, your pharmacy's usual brand may be unavailable even if other brands exist.

Strength-specific gaps: The 500 mg and 750 mg tablets are less commonly stocked than the 1,000 mg strength. If your prescription calls for a less-common dose, finding it may require more effort.

Small and independent pharmacies: These locations may not keep all strengths on hand, particularly for medications with moderate demand.

Supply chain disruptions: Even stable generics can face temporary regional supply issues when distributors run low or face logistics delays.

What Happened to the Brand Name Relafen?

The original brand name Relafen was discontinued and is no longer available in the U.S. However, Relafen DS (the 1,000 mg double-strength tablet) is still manufactured and sold. For patients who were previously on brand Relafen, the switch to generic nabumetone is typically seamless — the drug is identical in active ingredient. That said, some patients who received refill denials or insurance changes during the brand transition may have faced temporary supply confusion.

How to Find Nabumetone When Your Pharmacy Is Out

If your usual pharmacy doesn't have nabumetone in stock, here's what to do:

Call multiple pharmacies. This is the most direct approach, but it can take a frustrating amount of time on hold.

Ask your current pharmacy to order it. Most pharmacies can place a special order within 24–48 hours if your specific nabumetone strength is temporarily out.

Try a mail-order pharmacy. If your insurance includes mail-order benefits, this can often provide a 90-day supply delivered to your door.

Use medfinder.

Rather than spending time calling pharmacies yourself, medfinder calls pharmacies near you to check who has your medication in stock, then texts you the results. It's a fast, reliable way to locate nabumetone without the phone tag.

Should You Ask About Alternative NSAIDs?

If you cannot locate nabumetone at any pharmacy within a reasonable distance and need relief quickly, talk to your prescriber. Alternatives in the same NSAID class — such as meloxicam, naproxen, or celecoxib — may be suitable substitutes depending on your health profile. Read our full guide on alternatives to nabumetone to understand your options before switching.

The Bottom Line

Nabumetone is not in a declared national shortage, but pharmacy-level availability gaps are real. Lower prescription volume, strength-specific stocking decisions, and occasional manufacturer supply issues can all leave patients scrambling. The good news: with the right tools and strategies, finding nabumetone in stock near you is very achievable. Don't wait — the faster you start checking, the sooner you'll have your medication in hand.