This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Asthma, Subject name: Pharmacology
[{'content': 'Ipratropium bromide used in Bronchial asthma, is \nSelect and explain. \nA. b - Sympothomimetics, B. Methylxanthines, C. Anticholinergics, D. Mast cell stabilizers', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (Anticholinergic) (217-KDT 6th)CLASSIFICATIONS OF DRUGS USED IN Br, ASTHMAI- Bronchodilators A. b2 sympathomimetics -Salbutamol, Terbutaline, Bambuterol, Salmeterol, formoterol, EphedrineB. Methvlxanthines -Theophylline, Aminophylline, Choline, theophylline, DoxophyllineC. Anticholinergics -Ipratropium bromide**, Tiotropium bromideII. Leukotriene antagonists -Montelukast, ZafirlukastIII. Mast cell stabilizers -Sodium cromoglycate, KetotifenIV. Corticosteroids - A-SystemicHydrocortisone, Prednisolone and othersB. Inhalational -Beclomethasone, dipropionate, Budonide, Fluticasone propionate, Flunisolide, CiclesonideV. Anti-IgE antibody -Omalizumb', 'role': 'assistant'}]