8 Telithromycins affinitet til den bakterielle 50S ribosom subunit er 10 gange højere end for erythromycin A, hvis stammerne er følsomme over for erythromycin A.
The affinity of telithromycin for the 50S bacterial subunit of ribosome is 10 fold higher than that of erythromycin A when the strain is susceptible to erythromycin A.