Gygel contraceptive jelly contains the active ingredient nonoxinol-9, which is a chemical that kills sperm.
Nonoxinol-9 works by disrupting the cell membranes of sperm, causing the contents of the cells to leak out. This affects the motility of the sperm and ultimately leads to their death.
Nonoxinol-9 is not effective enough at preventing pregnancy to be used on its own as the only method of contraception, except perhaps in women whose fertility is low, such as women over aged 50 or women who are breastfeeding. The jelly should be used in combination with barrier methods of contraception such as condoms, diaphragms or caps to provide additional protection against the risk of becoming pregnant.
The jelly is most appropriate for using with a diaphragm. You spread the gel over the diaphragm surface and also around the rim, allowing it to come into contact with the cervix. After having sex it is important to keep the diaphragm and spermicidal jelly in place and untouched for at least six to eight hours. If you want to have sex again within this time, an additional application of Gygel must be made first. A vaginal applicator should be used to insert more Gygel.
Certain medicines should not be used during pregnancy or breastfeeding. However, other medicines may be safely used in pregnancy or breastfeeding providing the benefits to the mother outweigh the risks to the unborn baby. Always inform your doctor if you are pregnant or planning a pregnancy, before using any medicine.
Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Just because a side effect is stated here, it does not mean that all people using this medicine will experience that or any side effect.
The side effects listed above may not include all of the side effects reported by the drug's manufacturer.For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.
This contraceptive jelly is not known to affect other medicines.
There are currently no other spermicidal contraceptives containing nonoxinol-9 available in the UK.