SPL Set ID: 63517422-45a0-4e78-8505-eca054068ee9
1 drug(s) with this SPL Set ID
Theophylline is structurally classified as a methylxanthine. It occurs as a white, odorless, crystalline powder. It is slightly soluble in water and chloroform, sparingly soluble in ethanol, very slightly soluble in ether and dichloromethane. Theophylline anhydrous, USP has the chemical name 1 H- Purine -2, 6-dione, 3,7-dihydro-1, 3-dimethyl-, 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 inactive ingredients: hypromellose, lactose monohydrate, magnesium stearate, and povidone. Structure