Drug Interactions
The effects of some drugs can change if you take other drugs or herbal products at the same time. This can increase your risk for serious side effects or may cause your medications not to work correctly. These drug interactions are possible, but do not always occur. Your doctor or pharmacist can often prevent or manage interactions by changing how you use your medications or by close monitoring. To help your doctor and pharmacist give you the best care, be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products) before starting treatment with this product. While using this product, do not start, stop, or change the dosage of any other medicines you are using without your doctor's approval. Some products that may interact with this drug include: aromatase inhibitors (e.g., anastrazole, exemestane), potassium supplement/salt substitutes, raloxifene, sodium tetradecyl sulfate, tamoxifen, medication for underactive thyroid (hypothyroidism), medications that can raise potassium levels (e.g., ACE inhibitors such as enalapril/lisinopril, angiotensin receptor blockers such as losartan/valsartan, heparin, NSAIDs such as ibuprofen/naproxen, potassium-sparing "water pills"/diuretics such as spironolactone/triamterene), drugs that may increase blood levels of this drug (e.g., acetaminophen, ascorbic acid/vitamin C, atorvastatin, azole antifungals such as itraconazole/ketoconazole/vaginal miconazole). Certain drugs can decrease the effectiveness of combination-type birth control by decreasing the amount of birth control hormones in your system. This can result in pregnancy. These drugs include: many antibiotics (e.g., cephalosporins, chloramphenicol, macrolides such as erythromycin, penicillins, sulfas), aprepitant, bexarotene, bosentan, dapsone, felbamate, griseofulvin, certain HIV protease inhibitors (e.g., amprenavir, nelfinavir, ritonavir), modafinil, nevirapine, phenylbutazone, rifamycins (e.g., rifampin), many seizure medications (e.g., barbiturates, carbamazepine, phenytoin, lamotrigine, topiramate), St. John's wort. Consult your doctor or pharmacist for details, and ask if you should use additional reliable birth control methods while taking any of the drugs listed above. This drug can speed up or slow down the removal of other drugs from your body by affecting certain liver enzymes. These affected drugs include acetaminophen, aspirin, certain beta blockers (e.g., metoprolol), clofibrate, cyclosporine, morphine, corticosteroids such as prednisolone, certain benzodiazepines such as lorazepam/temazepam, and theophylline, among others. If you are currently using any of these medications listed above, tell your doctor or pharmacist before starting this medication. This medication can affect the results of certain lab tests (e.g., blood tests for clotting factors, thyroid). Make sure laboratory personnel and all your doctors know you use this medication. This document does not contain all possible drug interactions. Keep a list of all the products you use. Share this list with your doctor and pharmacist to lessen your risk for serious medication problems.