Levorid D Tablet is a combination medication containing Levocetirizine 2.5 mg and Phenylephrine 10 mg, formulated to provide effective relief from symptoms associated with allergic rhinitis and nasal congestion. Levocetirizine, a third-generation non-sedating antihistamine, selectively inhibits peripheral H1 receptors, thereby reducing allergic symptoms such as sneezing, rhinorrhea, nasal itching, and watery eyes. Phenylephrine, a sympathomimetic agent, acts as a selective alpha-1 adrenergic receptor agonist, inducing vasoconstriction of nasal mucosal blood vessels, which helps alleviate nasal congestion and improve airflow. This combination offers a dual mechanism of action, addressing both allergic manifestations and nasal obstruction commonly experienced in conditions like seasonal allergic rhinitis and common cold. Levorid D is indicated for adults and children above 12 years of age, providing symptomatic relief with minimal sedation risk due to the non-drowsy profile of Levocetirizine. It is recommended to be taken orally as directed by a healthcare professional. Caution is advised in patients with hypertension, cardiovascular disorders, or hyperthyroidism due to the vasoconstrictive effects of Phenylephrine. Consultation with a physician is essential before use, especially in pregnant or lactating women and individuals with pre-existing medical conditions.