Vapitadine (R129160; Hivenyl™) is an antihistamine that Barrier Therapeutics is developing as a treatment for allergic reactions of the skin, such as those associated with hives and for the itch associated with atopic dermatitis. Vapitadine is a new selective, non-sedative H1antihistamine. In several in vitro and in vivo pharmacological models, vapitadine is at least as potent as cetirizine (Zyrtec®) and does not penetrate the blood-brain barrier. An advantage of vapitadine over other antihistamines may be the absence of the sedation, even at high doses. Vapitadine had been in phase II clinical trials for the treatment of patients with atopic dermatitis. However, no development has been reported.