How many insertions are necessary?
Two insertions greatly increase the chance that the quinacrine sterilization will be successful and are therefore always part of a QS procedure. Contraceptive Backup Methods A contraceptive should be used starting the day of the first insertion and continuing for two months after the second insertion. In other words, it should be used for a total of at least 12 weeks. This ensures that during the time when the plug of scar tissue is forming, the chances of pregnancy will remain low. Examples of contraceptives to use are condoms, foam, pills, IUDs or injectables. To be sure that the tubes have been blocked and that the patient will not become pregnant, she must return for a second insertion one month after the first, and must continue using the other method for 2 more months after the second insertion. If the woman has been using a contraceptive method that she is comfortable with before the QS, she should keep using it for the required time.