Risk of Acute Liver Injury in Users of Antimicrobials

Eligible patients who are new users of moxifloxacin during the study period. A new user is defined as a person who has a first recorded dispensing of moxifloxacin during the study period and who has not had a previous recorded dispensing for any of the study antimicrobials during the previous 180 days

Eligible patients who are new users of one of the other study antimicrobials (amoxicillin, amoxicillin plus clavulanic acid, cefuroxime, clarithromycin, doxycycline, levofloxacin, or telithromycin) during the study period. A new user is defined as a person who has a first recorded dispensing of a study a study antimicrobial during the study period and who has not had a previous recorded dispensing for any of the study antimicrobials during the previous 180 days.