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Prescription Required
IMPORTANT NOTE: A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.
Difference between Brand & Generic?

What is Mercaptopurine?

Mercaptopurine is a prescription medication that is used to treat acute lymphoblastic or lymphocytic leukemia. Mercaptopurine may be prescribed to be taken alone or with other cancer medications. This medication is a chemotherapy drug and works by slowing or stopping the growth of cancer cells.

Make sure to always read the patient information and instructions before using this medication. Always follow your doctor’s directions.

  • Mercaptopurine may be taken with or without food.
  • Drink plenty of fluids while taking this medication to keep your kidneys working properly.
  • Take this medication at the same time every day when possible.


Tell your doctor and pharmacist:

  • About your drug and other allergies.
  • If you take any other prescription or over-the-counter medications.
  • If you have ever used mercaptopurine or thioguanine and they were not effective.
  • Your medical history particularly of liver disease, kidney disease, ulcerative colitis, thiopurine methyltransferase or any viral, bacterial, or fungal infection,

You should also know:

  • Use effective birth control while taking mercaptopurine. This medication may harm an unborn baby, especially during the first trimester. Speak to your doctor if you become pregnant.
  • You should not breast-feed while taking this medication.
  • Some people who have taken this medication have developed lymphoma. Speak to your doctor for more information.
  • This medication can weaken the immune system. Avoid people that are sick or have infections and speak to your doctor if you show signs of an infection.
  • Do not receive any live vaccines while taking this medication as they may not be as effective.

Side Effects of Mercaptopurine

Common side effects of mercaptopurine include but are not limited to:

  • Nausea or vomiting.
  • General ill-feeling.
  • Diarrhea.
  • Unusual or easy bruising or bleeding.
  • Low blood cell counts.
  • Changes to your skin color or rashes.
  • Loss of appetite.
  • Hair loss.

Get medical help if you have any of the following side effects of mercaptopurine:

  • Signs of a low blood cell count including shortness of breath, lightheadedness, unusual bleeding, cold hands and feet, easy bruising, fever, chills, tiredness, skin sores, or mouth sores.
  • Signs of a liver problem such as dark urine, clay-colored stools, jaundice, nausea, vomiting, loss of appetite, upper stomach pain, diarrhea, or swelling in the midsection.
  • Signs of lymphoma such as feeling full, weight loss, fever, tiredness, stomach bloating, feeling full, or night sweats.
  • Symptoms of an allergic reaction such as difficulty breathing, hives, or swelling in your face, lips, or throat.


What is the strength of mercaptopurine?

Mercaptopurine is available in a strength of 50mg.

Can I take mercaptopurine while pregnant?

No. Use effective birth control while taking this medication.

A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.

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Our goal is to bring you the most affordable medication. If you find a lower price advertised by another website or your local pharmacy, we’ll match that price or beat it by 10% of the difference.* Call us at 1-877-204-1507 and a member of our CareTeam will be happy to assist you.

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Some exceptions may apply. To qualify for price matching, competitors must meet our standards for patient safety. Advertised prices must be for medication of the same type, strength, quantity, and form.

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Maria February 5, 2021

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Hello, as a retired USA pharmacist, I can say that Canada Pharmacy Depot has 2 awesome points in my book. Number 1 is the saving cost. If I use my Medicare D plan, I'm into the "coverage gap" in January. It amazes me how over priced the USA system is, sad I have to say that, but it is totally true. Point Number 2 is your customer service. I used to try to go out of my way for patients. I'm definitely glad seeing the staff at Canada Pharmacy Depot embodies that same desire....KUDOS... Paul
Paul February 27, 2020

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I was very satisfied with the service and knowledge of your staff. Very professional and friendly. This was my first order and I felt very comfortable dealing with your pharmacy. I was walked through every step and my questions were answered.
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I was very satisfied with your information about how to set up my account. Thanks!
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Wonderful service. Appreciate that you try to keep costs as low as you can.
Carolyn February 19, 2020

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Once the details were done setting up the account, the follow up on keeping me posted on the order was excellent. The prescription came well within the expected delivery date. Will be following up shortly for my refill.
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I have not yet received the meds yet, but so far my experience with your reps has been fantastic! Very smart, very friendly and understanding. She was a great representative who explained the details and put my mind at ease.
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My order arrived today...love you guys. I have a serious illness and because of your ability to get my medicine to me for a price that I can afford...I'm alive and love ALL Canadians!
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I have not used the Canada Pharmacy Depot prior to this order. I was pleased that you did a price match and the order was managed quickly and efficiently after providing the necessary prescription. I will use the CPD again! Don
Donald January 30, 2020

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The Canada Pharmacy Depot exceeded my expectations. They made it easy to send them the Rx and the wait time was not long before my order arrived.
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