however , because of the increased serum erythromycin concentrations between 1 and 6 h after the dose of the stearate preparation compared to ethylsuccinate we recommend erythromycin stearate , 1.5 g , as the preferred loading dose , given 1 h before the dental procedure , for preventing endocarditis in susceptible patients allergic to penicillin .
C0014806
erythromycin
C0059566
erythromycin stearate