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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Accidentally Taken Tri-sprintec Pill That Had Crossed The Expiry Date. Chances Of Pregnancy?

I m a 27yr old female 190lbs. 5 5. i was wondering if i can become pregnant if i took one tri-sprintec pill that was expired on 6/11. i ve been on the pill for 8 months already. The reason I ask is because I didn t have any pills anymore and theonly pack I had didnt know it was expired. So i m wondering if i m in the risk of being pregnant.
Mon, 25 Jun 2012
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General & Family Physician,  's  Response
Hello,
Welcome to HCM,
Date of expiry doesn't mean that the drug will become ineffective suddenly. The potency of drug starts decreasing from the date it is manufactured & date of expiry is decided on the basis of lab test. It is expected that before date of expiry it will contain the drug in sufficient quantity but after that it might not be effective. Thus you are definitely at the risk of pregnancy. In a regular cycle of 28 days, ovulation is expected to occur on the 14th day. If you had unprotected sex near by date of ovulation, the chances further increase.
Wish you good health,
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Accidentally Taken Tri-sprintec Pill That Had Crossed The Expiry Date. Chances Of Pregnancy?

Hello, Welcome to HCM, Date of expiry doesn t mean that the drug will become ineffective suddenly. The potency of drug starts decreasing from the date it is manufactured & date of expiry is decided on the basis of lab test. It is expected that before date of expiry it will contain the drug in sufficient quantity but after that it might not be effective. Thus you are definitely at the risk of pregnancy. In a regular cycle of 28 days, ovulation is expected to occur on the 14th day. If you had unprotected sex near by date of ovulation, the chances further increase. Wish you good health,