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How do spermicides work?

These work by killing sperm and can be purchased without a prescription. There are several types: foam, gel, cream, suppository, or tablet. They can be used alone or to increase the effectiveness of barrier methods. They are 72–90% effective.

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What are spermicides?
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Spermicides are a type of birth control. They're chemicals that kill sperm, and they're designed to ...
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.