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Kelnor Drug Interactions

Cyclosporine (Gengraf, Neoral, Sandimmune)
Kelnor may increase the level of cyclosporine in your blood, possibly increasing the chance of side effects of cyclosporine. Talk with your healthcare provider before taking these medications together. You may need a lower cyclosporine dose, or you may need to switch to a different method of contraception.
Many Seizure Medications
Some seizure medications may cause your body to metabolize the hormones in Kelnor too quickly, possibly increasing your risk of pregnancy. Ask your healthcare provider if you should use a different method of contraception while taking a seizure medication.
Modafinil (Provigil)
Modafinil can make Kelnor less effective, perhaps increasing your risk of pregnancy. Talk with your healthcare provider, as you may need to use a backup method of contraception.
Protease Inhibitors
Using Kelnor with a protease inhibitor may increase your risk of pregnancy and can make the protease inhibitor less effective. Talk with your healthcare provider before combining these medications.
Selegiline (Eldepryl, Emsam, Zelapar)
The hormones in Kelnor may increase the level of selegiline in your blood, possibly increasing your risk of side effects. Your healthcare provider may need to lower your selegiline dosage or may recommend an alternate form of contraception.
St. John's Wort
St. John's wort (a commonly used herbal supplement) may decrease the effectiveness of Kelnor, possibly increasing the chance of pregnancy. In general, you should not take St. John's wort while using Kelnor.

Final Thoughts on Kelnor Drug Interactions

It is possible that not every drug interaction was discussed in this article. Therefore, you should talk with your pharmacist or healthcare provider about the Kelnor drug interactions that may apply to you.
Last reviewed by: Kristi Monson, PharmD
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