The following are true about erythromycin:
a. it can be used to treat chlamydial infection effectively
b. it decreases the renal excretion of cyclosporin
c. it causes cholestasis
d. all above
a. it can be used to treat chlamydial infection effectively
b. it decreases the renal excretion of cyclosporin
c. it causes cholestasis
d. all above