A 37-year-old member asked:
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any insights on how long it takes for tri-sprintec to actually become effective?

1 doctor answer
Dr. Herb Coussons
28 years experience Obstetrics and Gynecology
One week: I assume you mean for contraception. There are other reasons to take a birth control pill, but they work to prevent pregnancy by preventing ovulation. It takes about one week to reliably prevent ovulation or to avoid pregnancy from recent ovulation. If you want to be more sure of prevention start the pill with a menstrual cycle and it is reliable as your cycle is ending.
Answered on Oct 4, 2016
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Related questions:

A 38-year-old member asked:
Dr. Heidi Fowler
24 years experience Psychiatry
Tri-sprintec: It is not effective during the time frame that it is irregularly used and back up protection should be used at that time.
A 20-year-old female asked:
Dr. Charles Whiting
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1% per year: In clinical trials with Sprintec, the pregnancy rate was approximately 1 pregnancy per 100 women per year. You seem to be taking it correctly; howev ... Read More
A 31-year-old member asked:
Dr. Paula Hillard
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It depends: It depends on when in your cycle you started the pills. If you started on the first day of bleeding, it's effective right away. If later in your cyc ... Read More
A 21-year-old female asked:
Dr. Mary David
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In what way?: How long it takes any medicine and especially any birth control pill to change the body depends at least in part on what type of change you are asking ... Read More

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