system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
The drug not used in acute asthma is
assistant
The correct answer is  Refer KDT 6/e p 222 Only bronchodilator drugs are useful for the treatment of acute attack of asthma Beta 2 agonists eg salbutomol, terbutaline. Antichokinergics eg Iprqtropoum, tiotropium Methylxanthine eg Theophylline