title: Non-surgical tubal occlusion.
abstract: Out of 151 women provided with chemical female sterilization with 3 insertions of 250 mg of quinacrine spaced 1 month apart, there were 7 pregnancies in 3 years.  If these pregnancies were a result of failure to occlude the entrance to 1 or both fallopian tubes, birth events should decrease exponentially with time.  Unexpectedly, the low failure rate has not decreased significantly over the 3-year observation period.
authors.forename: R
authors.initials: R
authors.lastname: Guzman-serani
authors.forename: M
authors.initials: M
authors.lastname: Potts
authors.forename: R G
authors.initials: RG
authors.lastname: Wheeler
mesh_terms: D000166:Acridines; D055598:Chemical Phenomena; D002621:Chemistry; D003267:Contraception; D003268:Contraception Behavior; D005069:Evaluation Studies as Topic; D005193:Family Planning Services; D009930:Organic Chemicals; D004364:Pharmaceutical Preparations; D011796:Quinacrine; D012106:Research; D013245:Sterilization, Reproductive; D013246:Sterilization, Tubal; D013812:Therapeutics
chemical_list: D000166:Acridines; D009930:Organic Chemicals; D004364:Pharmaceutical Preparations; D011796:Quinacrine
keywords: Acridines; Clinical Research; Contraception; Contraception Failure; Contraceptive Usage; Drugs; Evaluation; Family Planning; Female Sterilization; Ingredients And Chemicals; Organic Chemicals; Quinacrine--administraction and dosage; Research Methodology; Sterilization, Sexual; Treatment; Tubal Occlusion