Clemizole is primarily utilized in research settings as an antihistamine with potential antiviral properties. It has been investigated for its ability to inhibit the replication of certain viruses, particularly hepatitis C virus (HCV), making it a candidate for antiviral drug development. Additionally, clemizole has been studied for its effects on ion channels, particularly TRPC5, which may have implications in neurological and cardiovascular research. Its sedative properties have also been explored in earlier studies, though its clinical use in this area is limited. Overall, clemizole serves as a valuable tool in pharmacological and virological research.