So spermicide is a product that is usually placed in the vagina to kill the sperm before the sperm meets the egg. Spermicide comes in various forms. It can be a little tablet. It can be a cream or a gel, and it can be in a small, thin film. All of these are used in the same way. They're placed in the vagina in order to prevent the sperm from getting to the egg.
Now spermicide has its advantages. It is available in the pharmacy. You can go to any pharmacy and purchase one of the various forms of spermicide, and it's easy to use. All you have to do is put it into the vagina before the act of sex and wait for it to melt in some instances before you have sex.
Now the drawback of spermicide is that it is not the most effective form of birth control. As a matter of fact, it is one of the least effective forms of birth control. The effectiveness is similar to that of the withdrawal method. In other words, you're about as effective at preventing pregnancy if you withdraw the penis before you ejaculate as if you use this form of birth control.
So, if you are considering this as a form of birth control, I would reconsider and use a condom with the spermicide. If you do, you will get even a greater effectiveness for the condom use in preventing pregnancy, and you will will prevent sexually transmitted infections.