A member asked:

If you change the time of day when you take your birth control, does that make it less effective?

A doctor has provided 1 answer
Dr. Ralph Morgan Lewis answered

Specializes in Family Medicine

Possibly: Some women's cycle is so sensitive that changing the time of day for taking it can alter periods until the new regimen is established; so it's best to use a backup method of protection for at least a month.

Answered 5/25/2012

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