Itchbil 20 Tablet contains Bilastine 20mg, a second-generation non-sedating antihistamine indicated for the symptomatic treatment of allergic conditions such as allergic rhinitis and chronic idiopathic urticaria. Bilastine selectively antagonizes peripheral H1 histamine receptors, thereby inhibiting the effects of histamine, a key mediator in allergic reactions. This action results in the alleviation of symptoms including sneezing, nasal congestion, rhinorrhea, itching, and hives. Itchbil 20 is characterized by a rapid onset of action and a long duration, allowing once-daily dosing without significant sedation or impairment of cognitive functions, making it suitable for patients requiring sustained allergy control. The drug is well-tolerated with a favorable safety profile; common adverse effects may include headache, dizziness, and gastrointestinal discomfort, which are generally mild and transient. Itchbil 20 should be used with caution in patients with severe renal or hepatic impairment, and dosage adjustments may be necessary. It is contraindicated in individuals with known hypersensitivity to Bilastine or any excipients. Patients are advised to follow prescribed dosages and consult healthcare providers before initiating therapy, especially when using concomitant medications to avoid potential drug interactions.