Mercaptopurine Shortage Update: What Patients Need to Know in 2026

The Mercaptopurine Shortage: Where Things Stand in 2026

If you take Mercaptopurine (6-MP) for leukemia, Crohn's disease, ulcerative colitis, or another condition, you've likely felt the impact of the ongoing drug shortage. What started as supply disruptions in late 2023 has stretched into 2026 — and patients are still struggling to find this essential medication at their pharmacies.

Here's an honest look at where the Mercaptopurine shortage stands right now, what it means for you, and what you can do about it.

Is Mercaptopurine Still in Shortage?

Yes. As of early 2026, Mercaptopurine 50 mg tablets remain in shortage according to the ASHP (American Society of Health-System Pharmacists) drug shortage database. The FDA continues to monitor the situation, but full resolution has not been achieved.

The most significant development: Quinn Pharmaceuticals temporarily discontinued its Mercaptopurine 50 mg tablets — both 25-count and 250-count bottles — with no estimated release date. Quinn was one of several manufacturers supplying the U.S. market, and their exit further tightened an already constrained supply.

Other manufacturers, including Mylan and West-Ward/Hikma, continue to produce Mercaptopurine, but supply may be subject to allocation limits from wholesalers. This means pharmacies can only order limited quantities, even when the drug is technically available.

Why Is Mercaptopurine Hard to Find?

The shortage stems from multiple overlapping factors:

• Manufacturer exits: Quinn's discontinuation removed a significant source of supply
• Few producers: Only a handful of companies make generic Mercaptopurine, making the supply chain fragile
• Raw material constraints: Active pharmaceutical ingredient (API) sourcing has been disrupted
• Allocation limits: Wholesalers restrict how much each pharmacy can order, creating artificial scarcity at the local level
• Increased demand: Growing off-label use for IBD and autoimmune conditions has increased overall demand over the past decade

For a deeper look at these factors, read our full article on why Mercaptopurine is so hard to find.

What Does Mercaptopurine Cost in 2026?

The shortage has complicated pricing for Mercaptopurine. Here's what patients are typically seeing:

• Retail cash price: $400 to $573+ for a 30-day supply (25 tablets of 50 mg) at many chain pharmacies
• With a discount coupon (GoodRx, SingleCare): As low as $48 to $56 for generic Mercaptopurine tablets
• Purixan (brand oral suspension): Significantly more expensive — often $2,000+ for a month's supply without insurance
• With insurance: Copays for generic Mercaptopurine are typically $10 to $50 depending on your plan

The catch: even with a coupon or insurance coverage, you still need to find a pharmacy that has it in stock. Check our guide on how to save money on Mercaptopurine for detailed pricing strategies.

Are There New Options for Patients?

While no major new formulations of Mercaptopurine have launched since Purixan (the oral suspension), there are a few developments worth knowing about:

Purixan Oral Suspension

If you can't find the 50 mg tablets, Purixan (20 mg/mL oral suspension) may be available through specialty pharmacies. It's the same active ingredient in liquid form, which is especially useful for children or patients who need precise dose adjustments. The cost is higher, but insurance may cover it — especially with documentation of the tablet shortage.

Alternative Medications

Depending on your condition, your doctor may consider switching you to an alternative medication such as:

• Azathioprine (Imuran): A prodrug of Mercaptopurine, widely available, commonly used for IBD and autoimmune conditions
• Methotrexate: Another antimetabolite used in ALL protocols and for autoimmune diseases
• Thioguanine: A related thiopurine, though limited by liver toxicity concerns with long-term use

Patient Assistance Programs

If cost is a barrier alongside the shortage, several programs can help:

• NeedyMeds and RxAssist maintain directories of assistance programs
• The Patient Access Network (PAN) Foundation and HealthWell Foundation may offer copay assistance for cancer indications
• State pharmaceutical assistance programs vary by location

How to Find Mercaptopurine in Stock

Here are the most effective strategies right now:

1. Use Medfinder to check real-time pharmacy availability near you
2. Try independent pharmacies — they often have different wholesale sources than chains
3. Contact specialty pharmacies that serve oncology or GI patients
4. Ask your hospital's outpatient pharmacy — they may maintain separate supply
5. Call pharmacies early in the morning (7-10 AM) when new shipments arrive

For a complete walkthrough, see our guide on how to find Mercaptopurine in stock near you.

Final Thoughts

The Mercaptopurine shortage has been ongoing for over two years now, and there's no clear end date. But patients aren't powerless. By staying informed, using the right tools, working closely with your healthcare team, and knowing your alternative options, you can keep your treatment on track even during a difficult supply situation.

We'll continue to update this page as new information becomes available. In the meantime, Medfinder is here to help you find Mercaptopurine — and the pharmacy that has it — as quickly as possible.