Allopurinol (cont.)

What Other Drugs Interact with Allopurinol?

If your medical doctor is using this medicine to treat your pain, your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor, health care provider or pharmacist first.

Allopurinol has no known severe interactions with any drugs.

Serious Interactions of Allopurinol include:

• azathioprine
• benazepril
• captopril
• didanosine
• dyphylline
• enalapril
• perindopril
• protamine
• theophylline
• warfarin

Moderate Interactions of Allopurinol include:

• aluminum hydroxide
• amoxicillin
• calcium carbonate
• cyclophosphamide
• dichlorphenamide
• ethambutol
• hyrdroxyurea
• mercaptopurine
• methotrexate
• mipomersen
• sodium bicarbonate
• sodium citrate/citric acid
• thioguanine

Mild Interactions of Allopurinol include:

• ampicillin
• cyclosporine
• tacrolimus

This information does not contain all possible interactions or adverse effects. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share this information with your doctor and pharmacist. Check with your health care professional or doctor for additional medical advice, or if you have health questions, concerns or for more information about this medicine.