Patient :I am taking Lo Loestrin, had unprotected sex on Friday then had to start Augmentin on Saturday for an ear infection. Have not had sex since I started the antibiotic, but did start bleeding on Saturday afternoon. How soon does Augmentin affect birth control?
Thank you for your query.
Since you are saying that you are already having bleeding the next day after having unprotected sex, the chance of a probable conception are almost remote. After beginning of the dosage of augmentin, it can lower the effectiveness of the birth control pill. Therefore extra method of contraception may be required like a condom or higher dosage of the pills until the course of the antibiotic is completed.
Hope that answers your query. Have a good day.
These Q&A’s are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.