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Livermore, CA
A 28-year-old female asked:

I switched from trinessa (norgestimate and ethinyl estradiol) to trisprintec birth control pills after finishing the old pack. do i need to be safe the first month on new pills?

1 doctor answer1 doctor weighed in
Dr. Kent Childs
Obstetrics and Gynecology 29 years experience
Change: Those 2 pills are very similar so as long as u take like you're supposed to then you shouldn't be concerned with the change.

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Last updated Apr 6, 2015

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