May 23 2022

Active ingredient: moxifloxacin

Moxifloxacin administered orally is well absorbed through the digestive tract, with an absolute bioavailability of 90%. Co-administration with a fatty meal does not affect appreciably absorption of this drug.

A clinical trial in 18 healthy volunteers showed no significant differences in the main pharmacokinetic parameters after a high-fat breakfast compared to fasting, being almost identical the AUC and elimination half-life before or after a meal.

The geometric mean of Cmax decreased slightly administering the drug after eating (2.5 mg / L vs 2.8 mg / L), while the Tmax was comparatively higher in patients after eating a fatty meal (2.5 h vs 1 h). The study's authors conclude that absorption of moxifloxacin seems delayed slightly by the effect of food[1].


1: Lettieri J, Vargas R, Agarwal V, Liu P. Effect of food on the pharmacokinetics of a single oral dose of moxifloxacin 400 mg in healthy male volunteers. Clin Pharmacokinet. 2001;40 Suppl 1:19-25.