Astemizole

Description: Astemizole (Laridal) is a synthetic piperidinyl-benzimidazol derivative with antiallergic properties, acts as a reversible competitive inhibitor of histamine H1 receptors, with less anticholinergic effects compared to related agents. It is a long-acting, non-sedative antihistaminic used in the treatment of seasonal allergic rhinitis, asthma, allergic conjunctivitis, and chronic idiopathic urticaria. Target: Histamine Receptor, Potassium Channel. Smiles: C(N1C=2C(N=C1NC3CCN(CCC4=CC=C(OC)C=C4)CC3)=CC=CC2)C5=CC=C(F)C=C5. References: Salata JJ, et al. Circ Res. 1995 Jan,76(1):110-9.