Unicast 5mg is a prescription medication containing montelukast sodium, available as cherry-flavored chewable tablets. It is used to treat asthma and allergic rhinitis symptoms in adults and children. Each pack contains 30 chewable tablets. The active ingredient montelukast belongs to a class of drugs called leukotriene receptor antagonists. The chewable tablet formulation makes it easier for children to take. The cherry flavor helps with palatability. The medication should be taken as prescribed by a healthcare provider, typically once daily. Store at room temperature away from moisture and light. This is a prescription-only medication that requires medical supervision.