Spermicide and vaginal contraceptive

Nonoxynol-9 (نونوكسينول)

Nonoxynol-9 is a spermicide placed in the vagina before sex to help prevent pregnancy. Protection depends on correct use every time, it is less reliable when used alone than many other contraceptive methods, and it does not protect against HIV or any other sexually transmitted infection.

What it is used for

  • Contraception as a vaginal spermicide
  • Adding contraceptive protection to a compatible barrier method when the individual product leaflet allows

How it is used

  • Insert the gel, suppository or ovule into the vagina in the way and at the time stated by your own leaflet before sex
  • Follow the product leaflet exactly about reapplication for each act and washing afterwards because instructions differ between forms
  • Ask a pharmacist before combining it with a condom or barrier because some formulations may not be compatible with its material
  • Do not use it rectally or as a vaginal douche

Possible side effects

  • Vaginal burning, itching or irritation
  • Irritation or rash on the partner's penis
  • Vaginal pain or discomfort
  • A greater chance of urinary tract infection in some users

Who should not use it

  • Allergy to nonoxynol or any product ingredient
  • HIV infection in either partner or a high risk of acquiring HIV
  • Active vaginal or rectal sores or irritation without medical assessment

Before and while using it

  • This product does not prevent sexually transmitted infections, and repeated use can cause microscopic damage that increases susceptibility to HIV
  • If you are unsure of your or your partner's HIV status, choose another method and seek testing and advice
  • Stop and seek advice if you or your partner develops persistent burning, rash, itching or pain
  • Pregnancy can occur even with correct use; choose a more effective method if avoiding pregnancy is medically important
  • See a clinician for a late period, pregnancy symptoms, pelvic pain or unusual discharge

Medicine interactions

  • Check compatibility with a condom, barrier or other vaginal product because the formulation base may weaken or be affected by some materials
  • Do not combine spermicides or a therapeutic vaginal product on your own because irritation can increase

Pregnancy and breastfeeding

  • It is not used during pregnancy; if pregnancy occurs, stop it and ask a clinician for advice
  • It can generally be used while breastfeeding, but ask a clinician or pharmacist about the most suitable method after birth

How to store it

  • Keep it in its original pack as directed, away from heat and out of children's reach

Get medical help straight away if

  • Your face, lips or tongue swell, or you find it hard to breathe.
  • You get a severe rash, blistering or peeling skin.
  • A side effect worries you or doesn’t go away: contact your doctor or pharmacist.

Questions about this medicine?

Talk to a doctor by video, or send your question by text.

Source: Standard international medicine references

This guide is general information and doesn’t replace advice from your doctor or pharmacist. Don’t start, stop or change a medicine without asking them, and always read the leaflet in the pack.