Overview Study to Compare the Efficacy and Safety Between Levocetirizine and Loratadine for Chronic Idiopathic Urticaria Status: Completed Trial end date: 2004-03-01 Target enrollment: Participant gender: Summary Study to Compare the Efficacy and Safety Between Levocetirizine and Loratadine for Chronic Idiopathic Urticaria. Phase: Phase 3 Details Lead Sponsor: UCB PharmaTreatments: CetirizineLevocetirizineLoratadine