Therapeutic blood range of theophylline in microgram per L is:: (A) 0-5, (B) 10-May, (C) 15-May, (D) 20-May
Answer is D. Theophylline is having a narrow margin of safety so therapeutic drug monitoring is essential If levels increase more than 20mg/L- side effects occurs ESSENTIAL OF MEDICAL PHARMACOLOGY SEVENTH EDITION KD TRIPATHI PGNO.226