Hello and welcome to HCM.
Thank you for your query.
Although there are no documented articles on Biaxin
interfering with the menstrual cycle, there have been cases of Biaxin interference with the female reproductive tract causing vaginal irritation
, itching, discharge, menstrual irregularities, etc. So, yes, there is a chance that the medication has caused an interference.
But, I would only assume this after conducting a pregnancy
test. I would recommend a home pregnancy test, that should be conducted at least 2 weeks after your last sexual contact or after the first day of a missed period. An early morning urine sample would yield a most accurate result in such cases.
Only once pregnancy has been ruled out, for which you might need to conduct the home pregnancy test at least 2-3 times; can we assume Biaxin to be the culprit.
I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications at: http://doctor.healthcaremagic.com/doctors/dr-shoaib-khan/64581 . I would gladly help you.