[header] How to stop your period early [title] Take ibuprofen. [step] Take one dose three or four times a day, being careful not to exceed the maximum dosage for any 24-hour period. For most people, this will help mitigate the pain of a period, and can reduce flow by about 50 %. 
However, some people find that ibuprofen stops their period altogether. [substeps] While ibuprofen has very few side effects, it is possible to overdose.