TY - CHAP M1 - Book, Section TI - Chapter 49. Antiviral Chemotherapy & Prophylaxis A1 - Trevor, Anthony J. A1 - Katzung, Bertram G. A1 - Kruidering-Hall, Marieke M. A1 - Masters, Susan B. PY - 2013 T2 - Katzung & Trevor's Pharmacology: Examination & Board Review, 10e AB - As obligate intracellular parasites, the replication of viruses depends on synthetic processes of the host cell. Antiviral drugs can exert their actions at several stages of viral replication including viral entry, nucleic acid synthesis, late protein synthesis and processing, and in the final stages of viral packaging and virion release (Figure 49–1). Most of the drugs active against herpes viruses (HSV) and many agents active against human immunodeficiency virus (HIV) are antimetabolites, structurally similar to naturally occurring compounds. The selective toxicity of antiviral drugs usually depends on greater susceptibility of viral enzymes to their inhibitory actions than host cell enzymes. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/04/20 UR - accesspharmacy.mhmedical.com/content.aspx?aid=56984153 ER -