What are the disadvantages of QS?
• QS may be less reversible than surgical methods because of the way quinacrine affects the tubes. • Some women may still get pregnant even after they have a QS. • QS is still a new method. There may be risks, that are not yet known. Back to top of page Has Quinacrine been approved by the FDA for use in female sterilization? No. Even though quinacrine is a FDA approved drug, the FDA has not yet approved its use for female sterilization. Using quinacrine for this purpose is considered an “off-label” use. The off-label use of drugs is a perfectly legal, acceptable, and common practice. Treating lupus with quinacrine is an off-label use. Approximately 60% of all prescriptions written in the U.S. are for off-label use. In 100,000 cases, no deaths or life threatening complications have been reported. But there may be some risks, as with almost all contraceptives. SEE ALSO Back to top of page Does QS ever fail? Yes. QS fails if the tubes are not blocked completely after two insertions. Howev
