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Doctor insights on:
Antibiotics And Plan B
1
Will Bactrim (sulfamethoxazole and trimethoprim) antibiotic cause plan b to be less effective even if I took it Tuesday (11 am) and Bactrim (sulfamethoxazole and trimethoprim) Thursday (7 pm). Yes or no?
NO: The affect of antibiotics, especially tetracyclines, has been studied as to effect on absorption of birth control hormones. Except for rifampin, they are compatible Relax. ...Read more
Antibiotic (Definition)
An antibiotic is a medicine that slows, stops, or kills germs. The germs are usually bacteria causing an infection in a person, so the person uses antibiotics to help his body get ...Read more
2
What happens if you take the Plan B pill and then an antibiotic pill? Will Plan B still work?
Most are not: Effected. Antibiotics which can affect Plan B include ampicillin, cotrimoxazole (in Bactrim), tetracycline, & clarithromycin. ...Read more
3
Today I took Plan B and im just gonna start with antibiotics due to uti, could antibiotics affect the Plan B effectiveness?
No: You already took Plan B and it works immediately. Starting antibiotics now will not affect it. ...Read more
5
If my girlfriend is on antibiotics and takes the plan b pill will it affect the plan b?
Should be fine!:
There is ONLY one antibiotic that affects BC. It's for tuberculosis - Rifadin (rifampin). Otherwise ther's no impact in either direction. Best!
http://plannedparenthood. Tumblr. Com/post/52308702538/will-the-morning-after-pill-work-if-im-taking
...Read more
6
Can you tell me about antibiotics, birth control and plan b?
Can't cover that: Many topic in 400 characters or less. Will share about plan b. Potential se’s w emergency contraception: tender breasts; changes in menstrual flow (spotting, bleeding, early or late period or spotting instead of period); loose stools; dizziness; headache; nausea/ vomiting; abdominal discomfort or feeling tired. If you develop chest tightness, difficulty breathing, swelling of lips, mouth, throat –. ...Read more
7
On birth control. On antibiotics. Had sex. Took Plan B pill. Will it be effective?
Plan B + antibiotic: + BCP. Antibiotics which can affect Plan B: ampicillin, cotrimoxazole (in Bactrim), tetracycline, & clarithromycin. Did you take oral contraceptives regularly? How long after sex did you take the Plan B. Plan B One-Step is up to 89 % effective when taken within 72 hours (3 days) after unprotected sex. It can reduce chance of pregnancy by up to 95% if used within 24 hours. It continues to reduce > ...Read more
8
My boyfriend is paranoid since a condom broke (only time) and I am on bc pills and antibiotics, and took a Plan B pill. How should stop his paranoia?
Good question: Have him see a mental health professional for evaluation and treatment. ...Read more
9
Unprotected sex while on antibiotics...Should I take plan b? I am usually pretty paranoid about unprotected sex, but 2 days ago I had unprotected sex. My partner pulled out. I am on birth control, and have been for years, but I had a sinus infection and h
Your: Your antibiotics may have increased the metabolism of your birth control pills. It may decrease the effectiveness of your birth control pills. You are probably ok, but if absolute contraception is your goal, it might be advisable to use plan b. Best wishes. ...Read more
10
If you take the antibiotic amoxicillin 4 days after taking Plan B, will the antibiotic reduce the effectiveness of Plan B?
No it will not: No it will not reduce the effectiveness of Plan B ...Read more
11
Had sex on day 17 of cycle. On birth control & we used a condom that didn't break, but was also 1st day on antibiotics Zithromax250. Do I need plan B?
No: No you don't need Plan B.Zithromax may reduce the effectiveness of the BCP but risk is very small. And you used condom. That makes the risk zero. So you do not need Plan B ...Read more
12
My gf has been on Loloestrin BC but is now on antibiotics. We had unprotected sex. Can the antibiotic, azithromycin, weaken the BC? Plan B time?
New Information: We now know that antibiotics do not automatically make birth control weaker. ...Read more
13
I have been on the pill for years, I had unprotected sex while on antibiotics (cephalexin) should I use plan b? what is the likelihood of pregnancy?
No pill/Plan B: No pill used, then use Plan B as pregnancy is always likely and it has to do with unprotected sex NOT the antibiotic use. ...Read more
14
How soon after taking plan b can I take an antibiotic?
Plan B:
Plan B works through delaying or preventing ovulation, by interfering with fertilization.
The FDA package insert also states that Plan B may inhibit implementation by altering the lining of the uterus.
I do not know of any specific interactions which have been reported with concurrent antibiotic use.
...Read more
15
Will plan b work if im on antibiotics (Amoxicillin)?
Yes: Antibiotics should not interfere with the efficacy of Plan B. ...Read more
16
I took the Plan B pill yesterday afternoon (3:00pm) and now I need to start antibiotics. When can I take it? The antibiotics is amoxicillin.
Antibiotics: You can take amoxicillin anytime. PlanB will not interfere ...Read more
17
I took plan b pill but Can antibiotics effect efficiency? Also can a 3 hour window between taking it and sex cause me to get pregnant and it not work?
Effective:
Plan B is very effective but not 100 %. 3 hour window will not alter the effectiveness of the treatment. If you wish to be sure, you may get an IUD placed right away.
Practice safe sex.
Get HPV vaccine.
...Read more
18
Will I get pregnant if I take Plan B while taking antibiotics?
That normally: Should not be a problem.
Get a more detailed answer ›
19
Does Plan B still work if you are on antibiotics for a bladder infection?
Usually: Antibiotics which can affect Plan B: ampicillin, cotrimoxazole (in Bactrim), Rifampin, tetracycline, & clarithromycin. ...Read more
20
If a woman is on antibiotics, could that impair the efficacy of Plan B emergency contraceptive? Thank you.
Depends:
It depends on the antibiotic. It would be prudent to check with your pharmacist and address the specific antibiotic of concern. For general information on this topic you may consult this site.
http://www. Webmd. Com/drugs/2/drug-17838-7300/plan-b-oral/levonorgestrel-oral/details/list-interaction-medication
If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD.
Practice safe sex.
...Read more
21
I take minocycline (50mg) once a day for my acne. If I hadn't taken the antibiotic in over 24hours and then took plan b, will plan be still work?
Yes: Drugs. Com Drug interaction checker showed no significant interactions between Minocin (minocycline) & Plan B One-Step (levonorgestrel). ...Read more
22
Can plan B lose effectiveness if I finished an antibiotic 3 days ago? Still on birth control pill
Plan B does not: Interact with many antibiotics. Antibiotics which can affect Plan B: ampicillin, cotrimoxazole (in Bactrim), Rifampin, tetracycline, & clarithromycin. ...Read more
23
Can antibiotics make my birth control and Plan B not work? I took them yesterday I had unprotected sex but im suppose to start antibiotics today
Which antibiotic?: Antibiotics which can affect Plan B: ampicillin, cotrimoxazole (in Bactrim), Rifampin, tetracycline, & clarithromycin ...Read more
24
I had sex 14 hours after my period started. Have been on antibiotics for 2 days and am wondering if I should take plan b? It is day 3 of my period
PlanB: If you are on your period, then you did not become pregnant, and therefore it is not necessary to take Plan B. ...Read more
25
Took UTI antibiotics (sulfame.) 5days. On orthotricyclenlo. Condom broke 1 day after antibiotics. Period should be in 2day Am I ok? Should I take plan b?
If the day: The condom broke was 2-3 days before your period then you should be safe. ...Read more
26
I took plan b Tues. Morning& I have a sinus infection so I need to take antibiotics can I take them or will is cause plan b to be unaffective. How soon?
Usually yes.: Depending upon the particular antibiotic there may be some questionable interference but generally this will not be a problem. ...Read more
27
I was on seasonique for 2 weeks and had sex and freaked and got Plan B just in case. The next day I had to start antibiotics. Is there a chance I could have gotten pregnant since antibiotics interact?
Low risk: The birth control pills are effective 7 days after starting so it sounds like you were protected. Taking Plan B just is case is fine and lowered risk even further below pill failure rate. Most antibiotics do not interfere with birth control pills. Rifampin (a medication for tuberculosis) is the only antibiotic that decreases pill effectiveness. The antibiotic you were given does not. ...Read more
30
I have the Nexplanon implant and have been taking antibiotics for this past week and had a condom break this morning. Should I take plan b? Can I?
You're protected: Nexplanon is one of the best methods of birth control on the market and will not be affected by antibiotics. In fact, only antibiotics that are given to treat tuberculosis will affect the efficacy of any birth control. I do not think that you need to take plan B. however if you are worried about STDs, I would get tested in a week. Plan B is not harmful in any case. Take care! ...Read more
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