Doctor insights on:
Amoxicillin Clavulanic 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. ...Read more
Also known as oral contraceptives, birth control pills are highly effective oral medications that use hormones to prevent pregnancy. There are two main types of birth control pills: one with estrogen and progestin (also known as the combination pill) and one with just progestin. The two main ways they prevent pregnancy are: 1) The hormones thicken the cervical mucous, which keeps sperm from entering the uterus on their way to the egg; and 2) By maintaining a level of hormone in the blood stream that prevents the ...Read more
No: There should be no interaction between these two medications. ...Read more
Can amoxicillin actually affect birth control pills or is that just in theory? Has there been any research or studies that prove this?
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 moreSee 1 more doctor answer
Does amoxicillin actually make birth control pills (loestrinfe) less effective or is that just a theory?
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
I stopped taking antibiotics (amoxicillin) 7 days ago. I take birth control pills to prevent pregnancy. Am I "safe" to have sex now without worrying?
Yes -be careful: Antibiotics can affect birth control pills by a somewhat convoluted mechanism. (If you really need to know, it has to do with the enterohepatic cycling of the birth control pills and the 'good bacteria' living in your gut that can be killed off by antibiotics). At times like this, it is best to rely on barrier protection methods/abstain since the 'Pill' may not be 99.9% effective as it usually is. ...Read more
Contraceptiion is a means of preventing conception (or fertilization). There are hormonal and non hormonal methods of preventing sperm and egg from meeting. Talk to your doctor or clinic about what options are best for you. There are short acting methods (condoms, pills, patch, ring) and long ...Read more