SPL Set ID: 48330a8e-be08-4d38-b8b1-d30fbd5a35de
1 drug(s) with this SPL Set ID
Theophylline is structurally classified as a methylxanthine. It occurs as a white, practically odorless, crystalline powder. Theophylline Anhydrous, USP has the chemical name 1,3-dimethyl-3,7-dihydro-1 H -purine-2,6-dione, and is represented by the following structural formula: C 7 H 8 N 4 O 2 M.W. 180.17 g/mol. This product allows a 12-hour dosing interval for a majority of patients and a 24-hour dosing interval for selected patients (see DOSAGE AND ADMINISTRATION section for description of appropriate patient populations). Each extended-release tablet for oral administration contains either 300 mg or 450 mg of theophylline anhydrous, USP. Tablets also contain as inactive ingredients: anhydrous lactose, hypromellose, lactose monohydrate, magnesium stearate and povidone. chemical-structure