can cephalixin affect birth control pill?

Can the antibotic cephalexin 500 mg capsule affect birth control pill?

*GBB*2010-08-04T09:18:08Z

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If there were to be an effect it would only be for the duration of the medication and possibly a week or so afterward. This would not be expected to last 3-4 months. Also, the effect of cephalosporins are usually pretty minimal concerning interactions with birth control pills.