Macrolides Macrolides azithromycin Biaxin Biaxin XL clarithromycin Dificid E.E.S. Ery-Tab EryPed Erythrocin Lactobionate Erythrocin Stearate erythromycin base erythromycin ethylsuccinate erythromycin lactobionate erythromycin stearate fidaxomicin PCE Dispertab Zithromax Zmax Pain Relief Massage and Relaxation Exercise Equipment Orthopedic products