A member asked:

What is the effectiveness of spermicide combined with the pill?

A doctor has provided 1 answer
Dr. James Lin answered

Here are some ...: Birth control pill prevents estrogrn mid-cycle peaking leading to no ovulation and spermicide kills sperms. Together, both doubtlessly synergize birth control effect better than that from each individually, but still never bringing a 100% guaranty.

Answered 5/31/2015

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