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Compare Birth Control methods

Browse every side-by-side birth control comparison, or select methods from the list to compare your own combination.

Side-by-side comparison

Method
Sponge

Sponge

A soft foam disc placed deep in the vagina before sex. It covers the cervix and contains spermicide.

Second Method

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EfficacyLeast effective see details

Least effective: under 90 out of 100 people successfully prevent pregnancy per year.

Cost$15–$20 /per package

Insurance: No

DurationSingle use (can be left in place up to 24 hours and for multiple acts of sex)
ReversibilityReversible
STI ProtectionNo
How it works

A polyurethane foam disc impregnated with spermicide is placed over the cervix before sex. The spermicide kills or disables sperm and the physical barrier blocks sperm from entering the uterus.

PrescriptionOTC No prescription / OTC
Side effects
  • Vaginal irritation or dryness
  • Increased risk of urinary tract infection
  • Rare allergic reaction
Who shouldn't use this
  • Allergy to nonoxynol-9, benzalkonium chloride, or other spermicide ingredients
  • History of toxic shock syndrome
  • Active vaginal infection
  • Inability to insert or remove reliably
  • High risk of HIV exposure (frequent nonoxynol-9 use may increase vaginal irritation; CDC cautions)