Antibiotic usage, dosage and course length in children between 0 and 4 years Jong JD et al. - Within the group of 0- to 4-year-old children, most antibiotics were used by 9- to 12-month-olds. The doses and course lengths were mostly correct, but the choice of antibiotics was not according to the guidelines. Young children received unlicensed and off-label prescribed antibiotics. [more...]