macrolide antibiotic clarithromycin ChEMBL:CHEMBL1741 Klaricid ARO:0000065 Clarith Clarithromycin is a methyl derivative of erythromycin, sharing the 14-carbon macrolide ring. The antibiotic binds to the 50S subunit of the ribosome and is used to treat pharyngitis, tonsillitis, acute maxillary sinusitis, acute bacterial exacerbation of chronic bronchitis, pneumonia (especially atypical pneumonias associated with Chlamydia pneumoniae or TWAR), and skin structure infections. Naxy Biaxin antibiotic_resistance Clambiotic CAS:81103-11-9 Macladin ChEBI:3732 Clathromycin Klacid Veclam CLR PubChem:84029