Be sure to tell your doctor or laboratory personnel that you are taking this medication.

Tell laboratory personnel and all your doctors that you are taking this medication.

Tell your doctor or laboratory personnel if you are taking this medication.

Tell laboratory personnel and all your doctors if you are taking these medications.

Tell laboratory personnel and all your doctors if you take any of the following: antibiotics (such as amoxicillin, erythromycin), methotrexate, pyrimethamine.

Tell laboratory personnel and all your doctors if you take any of the following: anti-infective drugs (e.g., amoxicillin, erythromycin), methotrexate, pyrimethamine.

Tell laboratory personnel and all your doctors if you take or use any of the following products: caffeine, theobromine, chocolate, furosemide, sulfathiazole, phenylbutazone, probenecid, acetaminophen, cefazolin, cephalothin.