title: In vitro ciprofloxacin release from poly(lactide-co-glycolide) microspheres.
abstract: Biodegradable microspheres of PLGA (75:25 and 50:50) containing Ciprofloxacin (CIPRO) were prepared by two different procedures based on: (i) solvent-evaporation, and (ii) evaporation-extraction of the organic phase. The encapsulation rates from the different formulations were quite variable, as well the release patterns of the drug from the microspheres. The evaporation-extraction method seems to be more efficient for the CIPRO encapsulation compared with the solvent evaporation method. The 50:50 PLGA composition released the drug faster and showed degradation signs after incubation in aqueous medium in both manufacturing methodologies.
authors.affiliation: Department of Pharmaceutical Technology, School of Pharmacy and Biochemistry, University of Buenos Aires, Argentina.
authors.forename: B
authors.initials: B
authors.lastname: Martinez
authors.forename: F
authors.initials: F
authors.lastname: Lairion
authors.forename: M B
authors.initials: MB
authors.lastname: Pena
authors.forename: P
authors.initials: P
authors.lastname: Di Rocco
authors.forename: M C
authors.initials: MC
authors.lastname: Nacucchio
mesh_terms: D000890:Anti-Infective Agents / Q000008:administration & dosage*; D002939:Ciprofloxacin / Q000008:administration & dosage* / Q000737:chemistry; D019344:Lactic Acid; D008863:Microspheres; D011100:Polyglycolic Acid; D000077182:Polylactic Acid-Polyglycolic Acid Copolymer; D011108:Polymers / Q000008:administration & dosage*
chemical_list: D000890:Anti-Infective Agents; D011108:Polymers; D000077182:Polylactic Acid-Polyglycolic Acid Copolymer; D011100:Polyglycolic Acid; D019344:Lactic Acid; D002939:Ciprofloxacin