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Some products that may interact with this drug include: aromatase inhibitors (such as anastrazole, exemestane), fosamprenavir, raloxifene, sodium tetradecyl sulfate, tamoxifen.

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.

OVERDOSE: If overdose is suspected, contact a poison control center or emergency room immediately. US residents can call the US National Poison Hotline at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: severe nausea and vomiting, sudden/unusual vaginal bleeding.

NOTES: Do not share this medication with others.

Keep all regular medical and laboratory appointments. You should have regular complete physical exams which include laboratory and medical tests (such as potassium blood level, blood pressure, breast exam, pelvic exam, pap smear) to monitor your progress and check for side effects. Follow your doctor's instructions for examining your own breasts, and report any lumps right away. Consult your doctor for more details.

MISSED DOSE: Refer to the product package information for advice on missed doses. You may need to use back-up birth control (such as condoms, spermicide) to prevent pregnancy. Ask your doctor or pharmacist if you have any questions.

If you often forget to take your pills as directed, contact your doctor to discuss switching to another form of birth control.

STORAGE: Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.

Information last revised January 2011 Copyright(c) 2011 First DataBank, Inc.