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Mercaptopurine

Mercaptopurine Dosage

Cydnee Ng, PharmDSonja Jacobsen, PharmD, BCPS, BCOP
Reviewed by Cydnee Ng, PharmD, Sonja Jacobsen, PharmD, BCPS, BCOP
Last reviewed on June 12, 2023

The average cost for 90 tablets of 50mg of Mercaptopurine is $65.84 with a free GoodRx coupon. This is 83.53% off the average retail price of $399.82.

tabletTablet

Dosage

Quantity

Price as low as

Price per unit

50mg

90 tablets

$65.84

$0.73

bottle of oral solutionBottle of oral solution

Dosage

Quantity

Price as low as

Price per unit

100ml of 2,000mg/100ml

1 bottle

$255.02

$255.02

Typical dosage for Mercaptopurine

This medication is available as generic tablets and a brand-name oral liquid called Purixan.

The starting dose is based on your body weight, so your provider will help determine the right dose for you. The recommended starting dose is 1.5 mg/kg to 2.5 mg/kg of weight by mouth once a day.

Your dose might differ if you have side effects (e.g., severely low blood cell counts) or if you take allopurinol (Zyloprim).

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Cydnee Ng, PharmD
Reviewed by:
Cydnee Ng, PharmD
Cydnee Ng, PharmD, is a drug information pharmacist at GoodRx, where she lends her expertise to providing reader-friendly, accessible content about medications. She holds her pharmacist license in California.
Sonja Jacobsen, PharmD, BCPS, BCOP,  is a clinical oncology pharmacy specialist currently practicing in Seattle. She has been practicing as a pharmacist since 2015 and is licensed to practice in Washington state and North Carolina.

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