A member asked:

My sister has cyst and is on rigevidon.she took 17th pill yesterday, today she has some clots, she didnot miss any pill.what might be a cause?

A doctor has provided 1 answer
Dr. Alvin Lin answered

Birth control pill: I suspect that your sister doesn't live in the States b/c Rigevidon (http://www.drugs.com/international/rigevidon.html) isn't sold here, at least not under that brand name. However, there are many combo birth control pills consisting of same medications. Of note, bleeding/spotting is common side effect especially in 3mo of new pill as body adjusts. If still concerned, have her see prescribing doc.

Answered 5/30/2015

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