title: Sustained release of niridazole from silicone rubber implants for the treatment of Schistosoma mansoni infections.
abstract: Niridazole was incorporated into silicone rubber implants to investigate the potential of a sustained release of the drug in the therapy of murine schistosomiasis mansoni. The infected animals (200 cercariae for 6 weeks) were randomly divided into three groups: one group received silicone rubber implants containing 50% by weight niridazole; a second group received blank silicone rubber implants with no drug; and the third group received no implants. Mortality 4 weeks later was in excess of 80% for animals with no implants or with the blank silicone rubber implants. In contrast, 10% mortality was observed in the mice receiving the niridazole-silicone rubber implants over a 10-week period. The worm burden in the niridazole-silicone rubber implant group was reduced at 10 weeks post implantation by 77%.
mesh_terms: D000818:Animals; D003692:Delayed-Action Preparations; D005260:Female; D051379:Mice; D009560:Niridazole / Q000008:administration & dosage* / Q000627:therapeutic use; D012550:Schistosoma mansoni; D012552:Schistosomiasis / Q000188:drug therapy* / Q000401:mortality; D012826:Silicone Elastomers
chemical_list: D003692:Delayed-Action Preparations; D012826:Silicone Elastomers; D009560:Niridazole