SPL Set ID: b0d5d1cd-c79b-4229-929c-2eb3e4f43298
1 drug(s) with this SPL Set ID
Theophylline is structurally classified as a methylxanthine. Theophylline, USP occurs as a white crystalline powder. Anhydrous theophylline has the chemical name 1,3-dimethyl-3,7-dihydro-1-H-purine-2,6-dione, and is represented by the following structural formula: Molecular Formula: C 7 H 8 N 4 O 2 Molecular Weight: 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 anhydrous theophylline, USP. Tablets also contain as inactive ingredients: hypromellose, lactose monohydrate, magnesium stearate and povidone. hb