Set of 2 sealed ZYRTEC promotional pens. This pen is a collectible item, often given out by pharmaceutical representatives to promote the Zyrtec allergy medication. Zyrtec is an over-the-counter antihistamine used for 24-hour relief of indoor and outdoor allergy symptoms, such as runny nose, sneezing, itchy eyes, and itchy nose or throat. The pen itself is described as a sleek, retractable ballpoint pen, likely a Huntington MGC Pen model, featuring a metallic barrel and a black rubberized grip. Such promotional items, especially older ones, can become rare and sought after by collectors.