Hi Juan,We are sorry to hear about your experience with the Member's Mark Aller-Zyr, Cetirizine HCl, 10 mg., Antihistamine (400 ct.). We take customer service concerns very seriously and are committed to providing our customers with high quality products. We strongly encourage you to contact our Call Center Team at 1-800-864-9719 or via email by going to www.perrigo.com/contact-us and reference case number 1754890. We look forward to addressing your concerns and hearing from you!