Yes: There is a drug interaction listed which states that the efficacy of the contraceptive is decreased. The other issue is why are you taking cephalexin to treat a paronychia. You might switch to a penicillin. Discuss it with your doc.
Answered 10/12/2015
2.2k views
Not likely rendering: Nexplanon implant useless, but antibiotics certainly can affect the hormone levels, which are normally consistent through an implant. I would use protection during that time frame, or just abstain until after whatever the condition requiring antibiotics has improved.
Answered 10/12/2015
2.2k views
No interaction: There are no minor, moderate or major drug interactions reported with these 2 medicines. This should not be a problem in terms of birth control efficacy.
Answered 3/15/2016
2.2k views
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