The key difference between cetirizine hydrochloride and levocetirizine dihydrochloride is that cetirizine hydrochloride is useful in treating symptoms of hay fever and other upper respiratory allergies by relieving the symptoms temporarily, whereas levocetirizine dihydrochloride is important in treating allergy symptoms that are associated with hay fever. Cetirizine is a commonly used medication. Cetirizine hydrochloride and […]

