I'm not taking a certain kind I just wanted a list to make sure that I didn't take them.
What is a list of medications that will affect my birth control?
Question posted by SRH1 on 12 Aug 2009
Last updated on 10 July 2012 by salamiran
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4 Answers

Some drugs may interact with Enpresse (ethinyl estradiol/levonorgestrel) to cause a reduction in estrogen levels, and can therefore cause an increased incidence of breakthrough bleeding, menstrual irregularities and possibly reduce the effectiveness of the birth control.
Drugs that may interact with Enpresse include:
*rifampin
*rifabutin
*barbiturates
*phenylbutazone
*phenytoin sodium
*griseofulvin
*topiramate
*some protease inhibitors (used in the treatment of HIV)
*modafinil
*possibly St. John’s wort.
*antibiotics (such as penicillins, tetracyclines)
Do not smoke while using birth control pills, especially if you are older than 35. Smoking can increase your risk of blood clots, stroke, or heart attack caused by birth control pills.
Always check with your doctor or pharmacist before you start taking any new medication or supplement.
For more information see https://www.drugs.com/pro/enpresse.html
You can check Enpresse interactions at https://www.drugs.com/drug_interactions.html
According to World Health Organization (WHO) medical eligibility for contraceptive use, generally we can say the following matters for OCPs interaction with other drugs:
Rifampicin or rifabutin and certain anticonvulsants (phenytoin, carbamazepine, barbiturates, primidone, topiramate, oxcarbazepine) and Lamotrigine have condition where the theoretical or proven risks usually outweigh the advantages of using the method.
Broad spectrum antibiotics (excluding rifampicin) Antifungals and Antiparasites users generally which there is no restriction for the use of the contraceptive method.
Antiretroviral drug should be checked by your pharmacist some of them have important interaction.
ampicillin
anticonvulsants(barbiturates,including phenobarbitol and primidone;
carbamazapine;felbamate;phenytoin;topiramate;vigabatrine)
griseofulvin(fulvicin,grifulvin V )
non-nucleoside reverse transcriptase inhibitors (sustiva,viramune)
phenytoin
pioglitazone
protease inhibitors(agenerase,norvir,viracept)
rifampin
sulfonamides
tetracyclines
theophylline
I just started birth control myself.. and I found out that St. Johns Wart could weaken the affect of " The Pill" and of course antibiotics do weaken " The Pill "
Related topics
Further information
- Enpresse uses and safety info
- Enpresse prescribing info & package insert (for Health Professionals)
- Side effects of Enpresse (detailed)
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