Levocetirizine Dihydrochloride Indications Zival is indicated in the treatment of symptoms associated with allergic conditions such as- Pharmacology This preparation contains Levocetirizine Dihydrochloride. Levocetirizine is the active (Levo) isomer of cetirizine. It is a new highly effective and well-tolerated nonsedating antihistamine with potent antiallergic properties. It has a two-fold higher affinity for H1 receptors than […]