TOPICS: Alternative asthma drugs, m3 antagonists, tiotropium, long acting, ipratropium, bronchoconstriction, copd, omalizumab, serum IgE, FceRI, resistant asthma, chromones, cromolyn, prevents mast cell degranulation, theophylline, methylxanthine, inhibits phosphodiesterase, camp levels, bronchodilation, bronchial relaxation, narrow therapeutic index/window, cardiotoxicity, blocks adenosine activities, neurotoxicity, cytochrome p450, methacholine, m3 receptors, bronchoconstriction, asthma
