Tell your doctor if you need to take an antibiotic during treatment with balsalazide.

A dosage adjustment may be necessary if you take pyrazinamide during treatment with allopurinol.

Talk to your doctor before taking any other medicines during treatment with nitazoxanide.

These drugs may increase the risk of bleeding problems if taken during treatment with warfarin.

Do not take any other prescription or nonprescription medicines, including herbal products, during treatment with corticosteroids without first talking to your doctor.

One density measurement taken during treatment will not help the doctor plan or modify treatment.

Your doctor may also prescribe a potassium supplement for you to take during treatment.

Your doctor may want you to take a vitamin and mineral supplement during treatment with penicillamine.

A few people who took agaricus mushroom during treatment for cancer have developed severe liver damage.

Don't take any other substance during treatment without talking with your doctor.