The Macrolides are a group of Antibiotics whose activity stems from the presence of a macrolide ring and a large lactone ring in their structure. The most commonly-prescribed Macrolides are:
... 44, 36.0% from 45 to 64, and 12.5% who are 65 years of age or older. The median age is 44 years. For every 100 females there are 99.5 males. For every 100 females age 18 ...