Kirkland Signature Aller-Tec allergy medication

Kirkland Signature Aller-Tec is a private-label antihistamine medication containing Cetirizine Hydrochloride, designed to treat indoor and outdoor seasonal allergies. It is a member of the Kirkland Signature family, which is the flagship private brand of Costco Wholesale Corporation.

Originally launched in the 1990s, the Kirkland Signature brand was created to provide high-quality alternatives to national brands at a lower price point. While Costco does not own the manufacturing plants itself, it partners with leading pharmaceutical manufacturers in various countries, primarily the United States, to produce its healthcare products under strict quality standards. Costco Wholesale remains the sole owner and distributor of this brand globally.