摘要: In 2001 valganciclovir was approved by the FDA for treatment of HIV associated retinitis and in 2003 prevention post transplant CMV. This review provides an update on status its use areas controversy: How long should prophylaxis be given?; What is appropriate dose prophylaxis?; Can it used children, at what dose?; to treat CMV disease? The question optimal dosing will probably not settled as sample size controlled trials would prohibitive. Other clearly show that extended therapy added benefit, drug safe has been identified children oral disease effective.