Device and method of treating conditions associated with neuroinflammation

A method of treating a subject in need of treatment for a neurodegenerative disease or neuroinflammatory disorder, comprising:

• administering to the subject a film oral dosage form having a leukotriene blocker in a film layer comprising a film-forming polymer.

A method of treating a subject in need of treatment for a neurodegenerative disease or neuroinflammatory disorder, comprising:

• administering to the subject a film oral dosage form having Montelukast dispersed in a film layer comprising a film-forming polymer, wherein the film oral dosage form includes a bioadhesive polymer to maintain adhesive contact between the film oral dosage form and mucosal tissue to facilitate transmucosal delivery of the Montelukast into a bloodstream of the subject in an amount that is safe and effective, wherein the Montelukast is present in the form of an electrostatic complex with a cationic biopolymer.