Since unplanned pregnancy has major consequences, it may be prudent to use an additional method of contraception during your amoxicillin therapy, just to be safe.Dr. Enzyme-Inducing drugs besides rifampin rifadin, the metabolism of estrogens. Unfortunately, to help with these issues, it reduces both the levels of progestin and estrogen by as much as 15%.While researchers are unsure exactly how much this affects your chances of getting pregnant, it can induce breakthrough bleeding, which means the level of the hormones in your body become lower than is ideal for the pill to work.If you have realized you have been taking medication that can interact with your birth control pills, don’t panic! He graduated from the University At Buffalo with a Doctor of Pharmacy degree in 2010. If you rely on oral contraceptives for birth control, chances are you have heard that antibiotics like amoxicillin can decrease their effectiveness. So you have decided that the birth control pill is your best contraceptive option. Yes -be careful: Antibiotics can affect birth control pills by a somewhat convoluted mechanism. How other antibiotics such as amoxicillin affect birth control is less conclusive. Antibiotics (such as amoxicillin) are the medications that are most commonly associated with a loss in efficacy of birth control.Unfortunately, the answer as to whether or not amoxicillin reduces the efficacy of birth control is not a simple 'yes' or 'no' as there is conflicting data on the subject.When discussing this subject, it important to note that there is only one class of antibiotics that we are absolutely sure negatively affects birth control and that is the 'rifamycin' class of antibiotics. I was wondering if accidently leaving my birth control pills in a hot car for about an hour or two would have an effect of them.. The truth is that most antibiotics (like Only a couple antibiotics such as rifampin, a rare antibiotic most often found in medications to treat meningitis and tuberculosis, can interfere with the effectiveness of your birth control. Use a backup method such as condoms until you can discuss the situation with your healthcare professional and find out your options. According to the U.K. research team, prior studies on interactions between antibiotics and birth control pills had yielded mixed findings. It's now thought that the only types of antibiotic that interact with hormonal contraception and make it less effective are rifampicin-like antibiotics. Rifampin can also lower the effectiveness the transdermal birth control patch (Ortho Evra) and the vaginal ring (NuvaRing), so a … // Leaf Group Lifestyle The majority of studies shown that most antibiotics do not significantly reduce the concentrations of oral contraceptives in the body and the efficacy of birth control pills is unchanged. Bedsider.comMcKinley Health Center, University of Illinois, "Pill Interactions With Other Drugs"U.S. National Library of Medicine: "Griseofulvin," "Ketoconazole," "St. John's Wort," "Saw palmetto," "Garlic," "Alfalfa," "Flaxseed. Rifampin lowers the effectiveness by decreasing the birth control hormone levels (ethinyl estradiol and progestin) in women taking oral contraceptives. Do I need emergency contraception or any back up methods? Mohammad bin salman as reduced effectiveness. I take combination pills and I took the second pill of the first week of a new pack 9 hours late. For the best experience, please use another browser or open Safari on your mobile device.Javascript must be enabled for the correct page display The answer is unclear, as little research has been conducted about this issue for amoxicillin. The issue is based on the possibility that amoxicillin may decrease the amount of ethinyl estradiol -- a common estrogen in oral contraceptive pills -- in your body. When taking both antidepressants and birth control pills you may also see more pronounced side effects of both medications, such as headaches, nausea, and weight gain.Be sure to let your doctors know if you are taking both antidepressants and birth control, so they can assess your risk for adverse interactions.Some medications used to treat and manage diabetes could interact with certain birth control medications. Does amoxicillin interfere with birth control - Both generic and brand pharmaceuticals are offered here to fit in the necessities and finances of all the customers Constant sales, cost reductions and other incredible benefits are waiting for decisive customers The top quality medications manufactured by the leading manufacturers are accessible in the drugstore