Dan FX is a combination of Fexofenadine hydrochloride 120mg and Montelukast 10 mg. It is used in the treatment of sneezing and runny nose due to allergies.
Montelukast is a leukotriene antagonist. It works by blocking the action of a chemical messenger called leukotriene. This reduces inflammation (swelling) in the airways and nose and improves symptoms. Fexofenadine is an antiallergic which blocks the action of another chemical messenger (histamine) responsible for runny nose, watery eyes and sneezing.
Efficacy of montelukast with fexofenadine in allergic rhinitis
Does not interact with muscarinic receptors unlike desloratadine