SPL Set ID: bf320619-c53b-49a7-97b5-cd0c075a9f75
1 drug(s) with this SPL Set ID
Theophylline is structurally classified as a methylxanthine. It occurs as a crystalline powder, white, practically odourless. Theophylline anhydrous USP has the chemical name 1,3-Dimethyl-3,7-dihydro-1H-purine-2,6-dione and is represented by the following structural formula: C 7 H 8 N 4 O 2 M.W. 180.17. 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: hypromellose, lactose monohydrate, magnesium stearate and povidone. theophyllineertabletsstructure