Oral theophylline has, for many years, been used as a bronchodilator in patients with COPD. Despite the introduction of new drugs, and its narrow therapeutic index, theophylline is still recommended for COPD treatment.
Department of Physiological Medicine, St George's Hospital Medical School, Level 0, Jenner Wing, Cranmer Terrace, London, UK, SW17 0RE. fram@sghms.ac.uk
