*The following content is generated by AI and is for reference only.
<h3>Overview</h3>
<p><strong>Levocetirizine Dihydrochloride</strong> is the active R-enantiomer of cetirizine, a second-generation antihistamine. Manufactured via asymmetric synthesis or chiral resolution, it features molecular formula C17H20ClN2O2·2HCl and CAS <strong>129684-15-7</strong>.</p>
<h3>Application</h3>
<ul>
<li>Allergic rhinitis management in adults and pediatric patients.</li>
<li>Treatment of chronic idiopathic urticaria for symptom relief.</li>
<li>Pharmaceutical API formulation into tablets and oral solutions.</li>
</ul>
<h3>Precautions</h3>
<p>Contraindicated in severe renal impairment; dosage adjustment required for elderly. Store below 25°C in dry conditions away from light. Handle with PPE to avoid inhalation or skin contact.</p>