A member asked:

Two weeks ago i gave my daughter amoxicillin,can this cause late peiod,shes 15 years old,not sexually active?

A doctor has provided 1 answer

No: Antibiotic use has no influence on cycles. Young women often do not release eggs in their first year or so after starting and this can lead to some irregularity.Delays up to 90 days have been recorded in otherwise normal young women.For most its a week or three followed by a very heavy cycle.

Answered 5/23/2016

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