Doctor insights on:
How Long After You Stop Taking Antibiotics Does Birth Control Work
Most antibiotics OK: Some antibiotics, like rifampin, definitely interact with birth control.Others may in some individuals and with some pills. It probably depends on how your body metabolizes the drugs, and it may also depend on the dose of hormones in the pills. Most small studies don't show differences in the level of hormones in the blood, but to be on the absolutely safe side, use condoms during antibiotic use. ...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
I have the nuvaring for birth control I been taking antibiotics with it does this decrease efficiency and would it work if I stop using the antibiocs?
Birth control: It is true that taking birth control with antibiotics can increase your chances of getting pregnant. You should use an additional form of birth control like condoms during the next few weeks of the antibiotics. Protection should return to normal after a few weeks off the antibiotics. ...Read more
Possible interaction: Some evidence suggests that some people may have lower blood levels of the hormones in bc pills if you take antibiotics, but other studies show that many people do not have lower blood levels. To minimize the risks of bc failure, use a backup method such as condoms during the cycle you're taking antibiotics. If you take antibiotics daily, discuss this with your doctor; there's not much evidence. ...Read more
How long after taking antibiotics does it take for your birth control to be effective again. Ik most vBulletin don't effect bc but I'm being safe?
Next package: To be completely safe, continue your pills and rely on them after the second week of the next package after you finish the antibiotics. As you know, this is probably being excessively cautious but it is a good idea to be using condoms any way to decrease the risk of STDs. Best wishes. ...Read more
How long after taking antibiotics does it take for birth control pills to be completely effective again?
If taking antibiotics during the off cycle of birth control pills, how long do you need to take extra protection?
Antibiotics and OCPs: Potential interaction between ocp's and antibiotics is overstated. Only known issue is with rifampin, an antibiotic generally used only for treatment of tb. Some concern exists for penicillin antibiotics, but risk of ocp failure is believed to be low. For your own peace of mind, however, consider using condoms and/or some other method until you have finished antibiotics and are on next pack. ...Read more
Yes, it depends: First of all, it depends on the birth control method you are using. In the case of oral contraceptives (ocp's) some antibiotics (azithromycin, ciprofloxacin) can increase ocp metabolism and therefore reduce their levels in the blood, increasing chances of ocp failure. You should always ask your doctor or pharmacist about all the medications you are taking before taking anything new. ...Read more
Is it true that birth control can become less effective when taking antibiotics? And if so how much less effective?
Double your pleasure: When you try to double your pill taking pleasure by taking the oral contraceptive pill and antibiotic pill at the same time, the antibiotic will be preferentially absorbed and the oral contraceptive not. Thus, the BC pill is less effective and pregnancies can and do occur. ...Read more
There are some: Antibiotics which can interfere with efficacy of oral contraceptives, but this does not mean that it will induce your period to come early. ...Read more
Yes, but: Most antibiotics and many other medications lower the effectiveness of birth control pills, so it is safest to also use condoms as well. ...Read more
Whay are the chances of getting pregnant while on birth control and missing a pill while taking antibiotics?
1 pill not likely: Missing 1 pill is not likely to increase risk of pregnancy by much, there's more risk if the missed pill extends the hormone free days>7 d. Antibiotics also aren't likely to cause the pill to fail. However, some women may be at higher risk for failure from either missed pills or antibiotics than others. Try not to miss pills, and to be safer, use a back-up such as condoms during antibiotics. ...Read more
Possibly: Being ill can delay periods. Some types of oral contraceptives can also effect your period. ...Read more
Can I get pregnant if I took amoxicillin and birth control and had sex on the second day of taking antibiotics?
Unlikely: When a woman is on birth control pills, starts antibiotics and has sex on the second day of antibiotics she is not yet at risk of pregnancy. Though antibiotics decrease the effectiveness of bcp a little the time of possible pregnancy is toward the end of the antibiotics and right after. But to be safe, use a back up form of birth control. ...Read more
When does nausea from birth control pills go away? On second month, a few days in taking antibiotics for UTI can that be making it worse?
Very unlikely: The antibiotics are not a probable cause for prolonging your reaction to bcps (if that is what it is). If the nausea was due to the bcps it will probably disappear in a month or so. If, however, you are having thoughts of suicide you need to go asap to a psychiatrist and have this assessed before you do something which will be regretted. Go now. Do not wait. Best wishes. ...Read more
Experiencing pink/brown discharge and spots of blood (only when wiping) during AND after taking antibiotics while on birth control pills. Normal?
Breakthrough bleed: Breakthrough bleeding (bleeding at the wrong time) is very common on birth control. It happens in about 1/3 of users. Its no big deal and usually self corrects over time. If you are not satisfied or it continues to happen then consider using a different birth control method. It is a common side effect and does not mean something is wrong or that the pill is not working. ...Read more
Hi, can I get pregnant while taking antibiotics amoxicillin for 3 days and only 3 days for me to get my period, I don't take birth control pill.
I'm on birth control pills and was taking antibiotics for 3 weeks for the flu, could this effect my fertility as I've missed my period?
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?
I had embarrasing problem of masturbation and during doing it I started bleeding doctor gave me birth control pills soon I recovered but now I have chronic uti attacks although iam taking antibiotics but still iam having bacterias in my urine iam unmarri
Not the problem: Masturbation is normal and healthy and does not cause bleeding. The pill should not be causing bacteria in your urine especially if u r on antibiotics to prevent infections. There may be a structural abnormality causing the persistent infections. U need to be seen by a urologist to have this checked out. Was the cause of the bleeding evaluated? Pills only treat the symptom and can cover up the cause. ...Read more
I took Amoxicillin for ten days. How long does this antibiotic affect my birth control? Does it fully stop it from working or lessen effectiveness?
I am not on birth control now but I start next month. I am getting on antibiotics. How long until it is out of my system for birth control to work?
I’m on birth control & started antibiotics yesterday for strep throat. How long will the antibiotics cause my birth control to not work properly?
Immidiately: Although certain antibiotics interact with birth control pills to render them less effective, Keflex is not really among those notorious for doing so. In addition, it does not really hang around too long so that once you stopped taking them, within 24 hours, it is already out of your system. ...Read more
Next pack: If a woman needs to take antibiotics while on birth control pills it is recommended she use a back up method such as condoms during the time she is on the antibiotics, and to be sure use, for the rest of the pack. That is because antibiotics can make some bcp less effective at preventing pregnancy. By the time the next pack is started effectiveness is back. ...Read more
During therapy: While you are on antibiotics your oral contraceptive *may* be less effective. Plenty of women take antibiotics and birth control at the same time and don't get pregnant. The answer lies with what your comfortable with.... Do you want to use a back up method when you are on antibiotics? As soon as you stop antibiotics, within 72 hours your birth control is back to being effective. ...Read more
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