The contraceptive patch is a thin, opaque transdermal patch that sticks to the skin. It is known to be highly effective in preventing unplanned pregnancy. The hormones estrogen and progestin are delivered into the bloodstream by the patch, where they stop the ovaries from releasing eggs and also thicken the cervical mucus which prevents the sperm from reaching the egg.
Usage
Peel off the backing and apply the patch directly to your skin on either your lower abdomen, buttocks, upper arm, or back. Leave the patch in place for a week and then replace with a new one. Repeat this for three weeks. During the fourth week you need to be patch-free. This is also the week you will have your period. If the patch comes loose or falls off, have a look into the information leaflet provided with the patch pack. If you have any doubts or concerns, please contact your healthcare provider.
Reference: http://www.fpa.org.uk/contraception-help/your-guide-contraception Accessed on September 6, 2016
PROS
Highly effective when used as directed
Easy to apply and remove
Does not require daily attention
Allows sexual spontaneity and doesn’t interrupt sex
CONS
Visible and may come loose or fall off
Requires keeping track of the number of weeks used
May cause some itching and redness at the application site
May cause some people to suffer headaches, mood swings, and weight gain
May disrupt menstruation
It is rare, but some women may suffer blood clots, heart attacks and strokes
Does not protect against HIV infection (AIDS) and other sexually transmitted infections (STIs)