Which medication for CMV is available in an oral formulation?

Valganciclovir is available in an oral formulation, making it a valuable option for the treatment of cytomegalovirus (CMV) infections. It is a prodrug of ganciclovir, which means that once ingested, it is converted into its active form in the body. This oral availability allows for easier administration compared to intravenous formulations, which can be beneficial in outpatient settings, enhancing patient compliance and convenience.

The other medications listed do not come in an oral form suitable for systemic treatment of CMV. Foscarnet and Cidofovir are typically administered intravenously due to their pharmacokinetic properties and potential for renal toxicity. Ganciclovir is also mainly available as an intravenous formulation, although it can be found in an oral form; however, it is not as commonly preferred as its prodrug, valganciclovir, for treating CMV.