Patients taking PPIs, fluorouracil, levodopa, anticonvulsants, altretamine, sulfasalazine, MTX, cotrimoxazole, lithium therapy, aspirin, H
2-receptor antagonist, neomycin, colchicine, chloramphenicol, antacids, penicillamine, tetracycline, cefdinir, methyldopa, quinolone antibiotics, or levothyroxine. Avoid drinking coffee, tea, or red wine while taking this medicine.