Heali-Fex Tablet is a combination medication containing Montelukast 10 mg and Fexofenadine 120 mg, formulated for the management of allergic conditions such as allergic rhinitis and chronic urticaria. Montelukast, a leukotriene receptor antagonist, works by blocking leukotrienes that cause inflammation, bronchoconstriction, and mucus production in the airways, thereby reducing symptoms like nasal congestion, sneezing, and wheezing. Fexofenadine, a second-generation antihistamine, selectively inhibits peripheral H1 receptors, effectively alleviating symptoms such as itching, runny nose, and hives without causing significant sedation. The synergistic action of these two agents provides comprehensive relief from allergic manifestations by targeting different pathways involved in the allergic response. Heali-Fex is indicated for adults and adolescents aged 12 years and above, offering once-daily dosing for improved compliance. It is generally well tolerated; however, patients should be monitored for potential side effects such as headache, gastrointestinal discomfort, or hypersensitivity reactions. Caution is advised in individuals with hepatic or renal impairment. Heali-Fex Tablet should be used under medical supervision, and patients are encouraged to report any adverse effects promptly. This combination therapy offers an effective option for patients requiring dual-action treatment for persistent allergic symptoms.