Overview Can Airflow Limitation in Chronic Obstructive Pulmonary Disease (COPD) be Reversible by Drugs? Status: Completed Trial end date: 2009-07-01 Target enrollment: Participant gender: Summary Critical combination of various approved drugs in management for patients suffering with COPD. Phase: Phase 4 Details Lead Sponsor: Baqiyatallah Medical Sciences UniversityTreatments: Theophylline