Top answers from doctors based on your search:
Do antibiotics affect plan b
A 18-year-old female asked:

Dr. Susan Albowanswered
Integrative Medicine 24 years experience
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 i... Read More
Created for people with ongoing healthcare needs but benefits everyone.
2.8k viewsReviewed >2 years ago

Dr. Heidi Fowleranswered
Psychiatry 27 years experience
Most antibiotics: are ok. Antibiotics which can affect Plan B: ampicillin, cotrimoxazole (in Bactrim), Rifampin, tetracycline, & clarithromycin.
Created for people with ongoing healthcare needs but benefits everyone.
554 viewsReviewed >2 years ago
A member asked:

Dr. Lynne Weixelanswered
Clinical Psychology 38 years experience
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:/... Read More
Created for people with ongoing healthcare needs but benefits everyone.
1.9k viewsReviewed >2 years ago
A 26-year-old female asked:

Dr. Hiep Leanswered
Nephrology and Dialysis 44 years experience
You can take any time you want.
Created for people with ongoing healthcare needs but benefits everyone.
Reviewed Nov 11, 2022
A 35-year-old male asked:

Dr. Heidi Fowleranswered
Psychiatry 27 years experience
Possibly: Antibiotics which can affect Plan B: ampicillin, cotrimoxazole (in Bactrim), tetracycline, & clarithromycin.
Created for people with ongoing healthcare needs but benefits everyone.
554 viewsAnswered >2 years ago
1 comment
A 22-year-old female asked:

Dr. Tanya Russoanswered
Pediatrics 27 years experience
Yes: Antibiotics should not interfere with the efficacy of Plan B.
Created for people with ongoing healthcare needs but benefits everyone.
2.8k viewsReviewed >2 years ago
A member asked:

Dr. John Berrymananswered
Obstetrics and Gynecology 56 years experience
"Plan B": Some antibiotics can interfere with absorption of oral birth control (Plan B for example), but not enough to reduce the hormonal effect on the uterine... Read More
Created for people with ongoing healthcare needs but benefits everyone.
365 viewsAnswered >2 years ago
A member asked:

Dr. Heidi Fowleranswered
Psychiatry 27 years experience
Agree W Dr. Khanna: This shoulde be fine. Plan B One-Step is up to 89 % effective when taken within 72 hours (3 days) after unprotected sex. It can reduce chance of pregn... Read More
Created for people with ongoing healthcare needs but benefits everyone.
556 viewsAnswered >2 years ago
A 20-year-old female asked:

Dr. Jeff Livingstonanswered
Obstetrics and Gynecology 24 years experience
No: You already took Plan B and it works immediately. Starting antibiotics now will not affect it.
Created for people with ongoing healthcare needs but benefits everyone.
4.8k viewsReviewed >2 years ago
A 24-year-old female asked:

Dr. Paul Garrettanswered
Radiology 42 years experience
Low Risk of Preg.: There is a drug interaction of Zithromax and Oral contraceptives: http://www.rxlist.com/drug-interactions/azithromycin-oral-and-estradiol-norethindron... Read More
Created for people with ongoing healthcare needs but benefits everyone.
1.7k viewsAnswered >2 years ago
A 22-year-old female asked:

Dr. Birendra Tandananswered
Urology 36 years experience
If you took a full course and it was the right med hen the antibiotic worked. Plan B fails rarely. If symptoms persist pl see your doc again and also... Read More
Created for people with ongoing healthcare needs but benefits everyone.
Answered Jan 24, 2023
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