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Effect of Antiepileptic Drugs on Oral Contraceptives - FPIN's Clinical Inquiries - ...

Sep 1, 2008 - We found no studies that measure, or even estimate, any increase in pregnancy rates in women taking antiepileptic drugs. Antiepileptic drugs known to induce the hepatic cytochrome P450 (CYP450) isoenzyme cause decreased sex hormone levels in women taking oral contraceptives, raising the...

American Family Physician : FPIN's Clinical Inquiries

https://www.aafp.org/afp/2008/0901/p634.html

Risks and Benefits of Combination Contraceptives - FPIN's Clinical Inquiries - American...

Dec 1, 2006 - The risks of using oral combination contraceptives include: a three- to sixfold increase in the incidence of venous thromboembolism (VTE) apparent by the fourth month of use and highest between six and 12 months of use; a two- to sixfold increase in the risk of ischemic stroke among ...

American Family Physician : FPIN's Clinical Inquiries

https://www.aafp.org/afp/2006/1201/p1915.html

Combined Oral Contraceptives for Mothers Who Are Breastfeeding - FPIN's Clinical ...

Oct 1, 2005 - There is currently no evidence of harm; however, few patients have been studied and existing studies have many limitations. Therefore, it is not possible to definitively answer this question at this time. The existing low-quality evidence suggests that combined oral contraceptives may ...

American Family Physician : FPIN's Clinical Inquiries

https://www.aafp.org/afp/2005/1001/p1303.html

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