Which of the following medications is NOT classified as a Mast cell stabilizer/Antihistamine combo?

Prednisolone stands out as it is a corticosteroid rather than a mast cell stabilizer or antihistamine combination. Mast cell stabilizers work by preventing the release of histamine and other inflammatory mediators from mast cells, thereby reducing allergic responses. Antihistamines block the action of histamine, alleviating symptoms associated with allergic reactions. Medications such as epinastine, ketotifen, and olopatadine possess both mast cell stabilizing properties and antihistaminic effects, making them effective for managing allergic conjunctivitis and other allergic conditions. In contrast, prednisolone is used primarily for its anti-inflammatory properties and to modulate immune responses, which does not fall within the mast cell stabilizer or antihistamine classifications.