SMILES: C[NH+]1CCC(=C2C3=C(C(=O)CC4=CC=CC=C42)SC=C3)CC1.C(=C/C(=O)[O-])\\C(=O)O
Description: The molecule is an organoammonium salt consisting of equimolar amounts of ketotifen(1+) and fumarate(1-) ions. A blocker of histamine H1 receptors with a stabilising action on mast cells, it is a non-bronchodilator anti-asthmatic drug. It has a role as an anti-asthmatic drug and a H1-receptor antagonist. It contains a fumarate(1-) and a ketotifen(1+).