Hypersensitivity to Levocetirizine, to the other piperazine derivatives, or to any of the excipients. Patients with severe renal impairment at less than 10 mL/min creatinine clearance. Patients problems of galactose intolerance, the Lapp lactase deficiency or glucose-galactose malabsorption should not take this medicine. Pediatric patients (children 6 months to 11 years of age) with impaired renal function.