Medical Uses
Tyrvaya (varenicline solution) nasal spray, from Viatris, is indicated for the treatment of the signs and symptoms of dry eye disease.
Varenicline is a nicotinic acetylcholine receptor agonist. When sprayed intranasally, it activates the trigeminal parasympathetic pathway, stimulating the lacrimal functional unit to increase natural tear production, helping to relieve dry eye symptoms.
