Ganciclovir is preferred over acyclovir in the following condition:
Herpes simplex keratitis
Herpes zoster
Chickenpox
Cytomegalovirus retinitis in AIDS patients
* Ganciclovir is the drug of choice for CMV infections. * Acyclovir is highly effective against Herpes simplex and Varicella zoster (chicken pox and herpes zoster) but it has very little activity against CMV.
Anti-Viral Drugs