Just got my wisdom teeth out so I've been on amoxicillin. I'm a mirena iud user and I use oral bc as well to treat a bleeding disorder. I've heard that antibiotics make the pill ineffective and I haven't been using a back up method and still have had sex. I called the obgyn today for a diff reason and they were taking my info and made sure to tell me that antibiotics make bc infective. She said this after she took down my info about having a mirena. I didn't think it would make my iud ineffective but now I'm scared :(
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