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Generic Purinethol is a specialty medication, which can cost more than standard prescriptions and involve a few extra steps. We'll help you understand what to expect.

Get Mercaptopurine for as low as $56.11, which is 88% off the average retail price of $482.78 for the most common version, by using a GoodRx coupon.

Get an extra $10.00 off Mercaptopurine and up to 90% off all prescriptions. Gold plans start at just $9.99/mo. Cancel any time.*
GoodRx coupon prices last updated on 05/06/26.
*Prices subject to change without notice. Sales tax may apply and is not included.| Dosage | Quantity | Retail price | GoodRx price |
|---|
| 50mg | 90 tablets | $401.15 | $66.11 |