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Doctor insights on: Azithromycin And Lessina Birth Control

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Azithromycin (Definition)

Azithromycin (zithromax, azithrocin, zmax, azin)[1] is an azalide, a subclass of macrolide antibiotics. Azithromycin is one of the world's best-selling antibiotics.[2][not in citation given (see discussion.)] it is derived from erythromycin, with a methyl-substituted nitrogen atom incorporated into the lactone ring, thus making ...Read more


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I'm on sprintec birth control, I just finished 5 days of azithromycin will it effect it or will I need a backup for how long?

I'm on sprintec birth control, I just finished 5 days of azithromycin will it effect it or will I need a backup for how long?

No to both questions: According to professional drug references, azithromycin does not affect how sprintec works, and Sprintec would be no more likely to fail in this case than it normally would, so you should not need a backup ...Read more

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What percentage chance is there that oral birth control will fail while taking azithromycin?

What percentage chance is there that oral birth control will fail while taking azithromycin?

About 5%: But if you don't want to be in the 5% use condoms. Bcp itself has a 3-5% failure rate so we recommend using condoms in addition all the time to prevent pregnancy. ...Read more

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I have been off azithromycin for 3 days will I still need to use a backup with my birth control?

Below: It is best to use backup method of BC along with your pill for the whole cycle during which you took the antibiotic.

Many think only broad spectrum antibiotics will decrease the effectiveness of BCPs.

However, using an additional method of BC during the current cycle will give you reassurance. ...Read more

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Will azithromycin effect my birth control? Can I have unprotected sex?

Will azithromycin effect my birth control? Can I have unprotected sex?

Use a condom: Antibiotics can decrease the effectiveness of contraceptive pills, so use condoms this month or practice abstinence. You should not be having unprotected sex regardless, because birth control does not prevent sexually transmitted diseases. Good luck. ...Read more

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Hi. Does azithromycin affect the pill cerazette? I took 4 azithromycin 2 weeks ago and don't know how long this could impact on my birth control.

Hi. Does azithromycin affect the pill cerazette? I took 4 azithromycin 2 weeks ago and don't know how long this could impact on my birth control.

Antibiotics: As a general rule, all antibiotics have the potential to minimally decrease the effectiveness of birth control, so it best to simply use condoms as well when having sex while on them. Best wishes. ...Read more

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Does Azithromycin affect the effectiveness of the birth control pill, Chateal?

Does Azithromycin affect the effectiveness of the birth control pill, Chateal?

Possibly: Most antibiotics can affect the contraceptive effectiveness of birth control pills, the best known for that are tetracyclines and ampicillins, so better be cautious and use an extra method for contraception while on an antibiotic, good luck ...Read more

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I took a 1G dose of azithromycin on Saturday & started my birth control Aviane on Sunday. Will antibiotic cause the birth control to not work?

I took a 1G dose of azithromycin on Saturday & started my birth control Aviane on Sunday. Will antibiotic cause the birth control to not work?

Aviane should work: The current thinking is that except for rifampin, other commonly-used antibiotics do not alter the effectiveness of birth control pills such as Aviane. 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

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I'm on NexPlanon and recently started taking azithromycin. Will the antibiotic cause the birth control stop working?

No it will not: Most Antibiotics don't affect contraception and Azithromycine is like that. Only Antibiotic which affect contraception is Rifampin which is used to prevent Meningitis and Tuberculosis ...Read more

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Took azithromycin the first week of a new pack of birth control on the third week had sex without a condom was I protected?

Took azithromycin the first week of a new pack of birth control on the third week had sex without a condom was I protected?

No: The med was likely out of your system or at such a low level it would not protect you from a reinfection. Try using condoms if your active. It will not prevent all STD's but gives you at least partial protection. I hope you understand that chlamydia can go infect your Fallopian tubes and render you functionally sterile. ...Read more

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Should I use backup birth control while using azithromycin oral? I am currently on natazia (estradiol valerate and dienogest).

According: According to drugs. Com and other sources I looked at, you do not need to use back-up contraception with azithromycin. You do need to use a back-up method with various other antibiotics, so it's always a good idea to ask your doctor if they prescribe one for you. ...Read more

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Can you take your birth control (junel fe) with azithromycin to cure (chlamydia)? Does it effect the azithromycin? Can it cause it not to work?

Other way around: Actually, the Azithromycin may affect the effectiveness of your birth control. You should use additional methods for the remainder of this pack. Good luck! ...Read more

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Had unprotected sex 15 days after taking azithromycin should be expecting period tomorrow, on birth control could I be pregnant?

Had unprotected sex 15 days after taking azithromycin should be expecting period tomorrow, on birth control could I be pregnant?

Sure, but...: If a woman is taking her birth control pills properly, they should work fine, regardless of the Azithromycin, as long as she wasn't having vomiting or diarrhea. Any fertile woman who has sex with a fertile guy can get pregnant, so always plan for that rare, surprise baby. ...Read more

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Should I take plan b if I had sex without a condom the third week of a new pack I took azithromycin in the first week of a new pack of birth control?

Should I take plan b if I had sex without a condom the third week of a new pack I took azithromycin in the first week of a new pack of birth control?

Not if on BC a while: A woman who takes birth control (BC) pills correctly, and is beyond her first pack of pills, has contraception (protection against pregnancy) every day. That means she can have sex every day, and not get pregnant. It means she has NO fertile days, as long as she takes the pills correctly. (Of course, any woman of child-bearing age, having sex, CAN get pregnant... the possibility is always there.) ...Read more

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Was prescribed Azithromycin for 10 days for a sinus infection. How does this interact with my birth control, TriNessa (norgestimate and ethinyl estradiol)? Thanks!

Was prescribed Azithromycin for 10 days for a sinus infection. How does this interact with my birth control, TriNessa (norgestimate and ethinyl estradiol)? Thanks!

Should not interact: The current thinking is that except for rifampin, other commonly-used antibiotics do not alter the effectiveness of birth control pills such as TriNessa (norgestimate and ethinyl estradiol). 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

Dr. Jeff Livingston
2,394 Doctors shared insights

Contraception (Definition)

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


Dr. Mark Pack
4 Doctors shared insights

Birth Control (Definition)

Also known as contraception, birth control is a method to prevent pregnancy. Some methods of birth control include a vasectomy, tubal ligation, oral contraceptive pills, vaginal rings, hormone injections, condoms, diaphragms, sponges, ...Read more