ethinyl estradiol/drospirenone - oral, Yasmin 28 (cont.)
DRUG INTERACTIONS: Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.Some products that may interact with this drug include: aromatase inhibitors (such as anastrazole, exemestane), fosamprenavir, raloxifene, sodium tetradecyl sulfate, tamoxifen, tizanidine.Drospirenone may raise your potassium blood level. Tell your doctor if you are regularly taking other drugs/products that can also raise your potassium level (including potassium supplements/salt substitutes, 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).Some drugs may cause hormonal birth control to work less well by decreasing the amount of birth control hormones in your body. This effect can result in pregnancy. Examples of these drugs include griseofulvin, modafinil, rifamycins (such as rifampin), St. John's wort, drugs used to treat seizures (such as barbiturates, carbamazepine, felbamate, phenytoin, primidone, topiramate), HIV drugs (such as nelfinavir, nevirapine, ritonavir), among others. Ask your doctor or pharmacist for more details.Tell your doctor when you start any new drug, and discuss whether you should use additional reliable birth control. Also tell your doctor if you have any new spotting or breakthrough bleeding, because these may be signs that your birth control is not working well.).This medication can affect the results of many laboratory tests. Make sure laboratory personnel and all your doctors know you use this medication.
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