Background: Antibiotic misuse is a major cause of antimicrobial resistance. Objectives: The present study aimed at determining the pattern of antibiotic usage in previously healthy children hospitalized for common infectious diseases in a tertiary care children's hospital. Methods: This study was the second part of a previous study in which inpatient charts of children hospitalized from October 2013 to September 2014 were reviewed to determine the rationality of drug use. Data from the first study were analyzed to define the antibiotic usage pattern in urinary tract infection, acute meningitis, community acquired pneumonia, fever without a localized source and acute gastro-enteritis. The data were checked independently by two pediatric infectious disease specialists to assess the appropriateness of prescribed antibiotics and in case of disagreement, rechecked by a third member. Results: Hospital charts of 140 children were reviewed; 47 had been treated for urinary tract infection, 31 for pneumonia, 25 for acute meningitis, 24 for acute gastroenteritis and 13 for fever without a localized source. One-hundred and fourteen children (81.42%) received 208 prescriptions for antibiotics (1.82 antibiotics/patient). Nineteen different antibacterial drugs and 2 antivirals (acyclovir and oseltamivir) were prescribed. Most frequently prescribed antibiotic was ceftriaxone. More than 25% of prescriptions for antibiotics were needless. In 91.6% of the prescriptions the medications had been prescribed by generic names. Dosing errors were observed in less than 7% and patients received the medication for prolonged duration, 25.6% of times. Conclusions: Nonuniformity of antibiotic usage, a high rate of needless antibiotic prescriptions, and prolonged administration found in this study call for stringent antibiotic stewardship.