Originally Posted by jbaker08
I recently started taking Tri-Sprintec. I am on the second day and it is the first form of oral contreceptives I have ever taken. How long does it take for it to become effective? The sooner the reply, the better! Thanks
Read your package insert. This answer, as well as plenty of other important facts can be found there.
If you started the pill on the first day of your period, it's effective immediatedly. If you started the pill on any day other than the first day of your period, it will be effective after 7 days of PERFECT use. Many doctors recommend abstaining/using a back up method for the first cycle as a precaution.