Can amoxicillin plus clavulanic acid affect birth control pills?

Yes. Many medications, including many antibiotics and estrogen containing birth control pills, are metabolized in the liver. The end result can be that the liver increases its metabolism of the birth control pills, thereby decreasing their effectiveness. For this reason, many doctors recommend that you use an alternate method of birth control such as condoms while taking any antibiotics.

Related Questions

Can amoxicillin actually affect birth control pills or is that just in theory? Has there been any research or studies that prove this?

Not aware of one. There are many drug interaction websites. There are many different BCPs available. You don't mention what BCP. You can easily check if anything mentioned. In general I would be very surprised if there was one because of the class of the drugs used. Doctors don't have infinite memories but the Web does if it has ever been recorded there. Read more...
Now felt to be false. The current thinking is that except for rifampin, other commonly-used antibiotics do not alter the effectiveness of birth control pills. This is likely presuming a person is not sick with vomiting or diarrhea, or some other condition that decreases the absorption of a swallowed pill. One can look up: http://www.ncbi.nlm.nih.gov/pubmed/12063491. Read more...

Is it possible for you to amoxicillin birth control pills and ibprophen together?

You can but. You can but Amoxicillin can interact with birthcontro; pills and it is controvercial and it is recommended by some to use a back up contraception like condom.You should discuss with your prescribing doctor you should use a back up contraception. Read more...

What is the interaction between birth control pills, the morning after pill, and the antibiotic amoxicillin? What's the possibility of pregnancy?

No interaction. If you are on birth control pills, took the morning after pill and are taking Amoxicillin for an unrelated reason, you are extremely unlikely to be pregnant. Check a home urine pregnancy test the after a missed period and if negative repeat in a week - that's the only way to be sure. Take Folic Acid 1 mg daily and best of luck! Read more...

I had sex while taking amoxicillin a week before my inactive birth control pills started. How soon can I take a pregnancy test? I started spotting 2 days before my inactive pills started and it continued for a total of 5 days. Its now been 3 weeks since w

The . The spotting you experienced is a sign that your birth control pill efficacy was affected. There are pregnancy tests available that can detect pregnancy up to 5 days before your period. Recall when the first day of your last menstral period was (last month). If you miss your period 30 days later, that is the best time to take a pregnancy test. Taking a pregnacy test too early between periods can produce a false negative result. This is because the pregancy test is testing for the 'pregancy hormone' which take the body time to be detectable in your body. Read more...