title: Effect of ciprofloxacin and ibuprofen on the in vitro metabolism of rosiglitazone and oral pharmacokinetics of rosiglitazone in healthy human volunteers.
abstract: The aim of this study was to study the effect of ciprofloxacin (CFX) and ibuprofen (IBF) on the in vitro metabolism of rosiglitazone (RGZ) in human liver microsomes and on the pharmacokinetics of RGZ in healthy human volunteers. A randomized, placebo controlled, 3-way crossover design oral pharmacokinetic study was done in healthy human male volunteers and in vitro metabolism studies were done in human liver microsomes to study the effect of CFX and IBF on RGZ metabolism. Each subject received orally either 8 mg of RGZ with a placebo or co-administration with either 500 mg of CFX or 400 mg of IBF. Plasma concentrations of RGZ were estimated using a validated LC-MS/MS method and the metabolism studies samples were analyzed by a reported HPLC method. There was no statistically significant difference observed in the pharmacokinetic parameters viz., AUC(0-t), AUC(O-infinity), Cmax, Tmax, Kel and t1/2 of RGZ following co-administration of either CFX or IBF. Both CFX and IBF did not affect the in vitro metabolism of RGZ in human liver microsomes.
authors.affiliation: Deccan College of Pharmacy, Kanchanbagh, Zafargarh, Hyderabad, India.
authors.forename: J N Suresh
authors.initials: JN
authors.lastname: Kumar
authors.forename: Prameela
authors.initials: P
authors.lastname: Devi
authors.forename: Lakshmi
authors.initials: L
authors.lastname: Narasu
authors.forename: Ramesh
authors.initials: R
authors.lastname: Mullangi
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000890:Anti-Infective Agents / Q000494:pharmacology; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000494:pharmacology; D019540:Area Under Curve; D002939:Ciprofloxacin / Q000494:pharmacology*; D018592:Cross-Over Studies; D004311:Double-Blind Method; D004347:Drug Interactions; D006207:Half-Life; D006801:Humans; D007004:Hypoglycemic Agents / Q000493:pharmacokinetics*; D007052:Ibuprofen / Q000494:pharmacology*; D008297:Male; D008862:Microsomes, Liver / Q000187:drug effects / Q000378:metabolism; D000077154:Rosiglitazone; D045162:Thiazolidinediones / Q000493:pharmacokinetics*; D055815:Young Adult
chemical_list: D000890:Anti-Infective Agents; D000894:Anti-Inflammatory Agents, Non-Steroidal; D007004:Hypoglycemic Agents; D045162:Thiazolidinediones; D000077154:Rosiglitazone; D002939:Ciprofloxacin; D007052:Ibuprofen