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Some products that may interact with this drug include: warfarin.

If you are using this medication for birth control, certain drugs can decrease the effectiveness of this medication. This can result in pregnancy. Consult your doctor or pharmacist for details. Medications that may cause this effect include: drugs affecting liver enzymes that remove this medication from your body such as certain anticonvulsants (e.g., phenytoin, carbamazepine, barbiturates), rifamycins including rifampin, aminoglutethimide, acitretin, bosentan, griseofulvin, St John's wort, certain HIV medications (e.g., nevirapine).

Ask your doctor if you should use additional reliable birth control methods while taking any of the drugs mentioned above and also using medroxyprogesterone.

This medication may interfere with certain laboratory tests (including certain hormone levels, liver function tests), possibly causing false test results. Make sure laboratory personnel and all your doctors know you are using this medication.

OVERDOSE: If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US national poison hotline at 1-800-222-1222. Canadian residents should call their local poison control center directly.

NOTES: Do not share this medication with others.

A physical examination including blood pressure, breast/pelvic examination, and a Pap smear will be done before you start this medication. Laboratory and/or medical tests (e.g., liver and kidney function tests, blood count, bone density test, periodic breast/pelvic examination, monthly self-examination of the breast) should also be performed to check for side effects.

Lifestyle changes such as exercising regularly, stopping smoking, and limiting alcohol may help reduce side effects from this medication. It is important to keep all regular medical and laboratory appointments so your doctor can closely monitor your response to help lower the risk of serious side effects. Consult your doctor for more information.

MISSED DOSE: It is important to use each dose as scheduled. If you miss a dose and more than 14 weeks has passed between injections, consult your doctor immediately for instructions. You will need a pregnancy test to make sure you are not pregnant before getting another injection. Other birth control methods (e.g., contraceptive sponge, diaphragm, condom) must be used to protect you from getting pregnant until you can get the next injection.

STORAGE: Consult the product instructions and your pharmacist for storage details. 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.

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