Best Answer

Like all medication, when it expires, it becomes less effective (and increases in its ineffectiveness as the time goes on). It's not easy to give a percentage as to how effective compared to non-expired pills, but if using expired Birth Control is your only option, I would use it with a condom or some other non-hormonal birth control to make sure you don't get pregnant. Otherwise, the likelihood of pregnancy will increase.

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Q: How effective are expired birth control pills?
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Related questions

Are daily birth control pills more effective than monthly pills?


Does expired birth control pills help to grow your breasts?

i dont think so

Does omnicef effect birth control pills?

In theory all antibiotics can make birth control pills less effective. This concern has not been proved.

How long does it take for the birth control pill to be 100 percent effective?

Birth control pills can never be considered 100% effective, im 12 and i no that

How can you not get pregnant but not using a condom?

Birth control pills are quite effective.

Can a women become pregnant 6 years after having a tubal and with the help of birth control pills?

A tubal ligation is a highly effective method of preventing pregnancy. Birth control pills prevent, but don't help, a woman to get pregnant. Combining tubal ligation and birth control pills is not an effective way to get pregnant.

How affective are birth control pills after a month if used correctly?

99.9% effective

If you take birth control at night is it still as effective as taking it in the day?

Yes, the birth control pill will be effective at any time that you choose that is convenient for you. However, you must take your birth control pills everyday at the same time in order for it to remain effective.

If your birth control pills go through the wash are they still as effective?

If the pills are dry and unharmed, they should still be effective. Check in with the pharmacist for another opinion.

Do stool softeners make the birth control pills or shot less effective?

No stool softeners don't effect hormonal birth control.

What happens if you take expired birth control pills Excessively like three or four?

If they are expired by a few months or weeks then they will probably mess up your cycle for the next month.

What are the signs if wife is taking birth control pills?

Packet of birth control pills on the kitchen counter, receipts from the pharmacy for birth control pills, or your wife asking, "Have you seen my birth control pills?"