[Drug repurposing to combat viral infectious diseases: principles and illustration with Prozac®].

Drug repurposing represents a strategic approach aimed at accelerating the development of treatments against viral infections. This review presents three repurposing strategies, illustrated with therapeutic compounds notably fluoxetine (Prozac®), a selective serotonin reuptake inhibitor antidepressant that also exhibits several antiviral mechanisms of action. The examples discussed in this review highlight both the potential and the limitations of drug repurposing, particularly in a "plug-and-play" approach.