Favipiravir sodium is a selective inhibitor of viral RNA-dependent RNA polymerase with activity against many RNA viruses, influenza viruses, West Nile virus, yellow fever virus, foot-and-mouth disease virus as well as other flaviviruses, arenaviruses, bunyaviruses and alphaviruses.
Cevimeline, a parasympathomimetic and muscarinic agonist, affects M1 and M3 receptors. Cevimeline has been shown to treat dry mouth and Sj gren's syndrome. It is also used to reduce Xerostomia symptoms and increase salivary flow in head and neck cancer survivors after radiotherapy.
Hexylcaine HCl also called cyclaine or osmocaine, is a short-acting local anesthetic. It acts by inhibiting sodium channel conduction. Overdose can lead to headache, tinnitus, numbness and tingling around the mouth and tongue, convulsions, inability to breathe, and decreased heart function.