Slo-Phyllin® Tablets (theophylline tablets, USP) are scored,
dye-free tablets providing 100 mg or 200 mg of theophylline, anhydrous,
Slo-Phyllin® 80mg Syrup (theophylline, anhydrous) is a
nonalcoholic sugar-free solution containing per 15 mL theophylline, anhydrous,
USP. 80 mg with sodium benzoate, NF, 18 mg and methylparaben, NF, 3 mg
added as preservatives.
Both tablets and syrup are intended for oral administration. Theophylline
is a bronchodilator structurally classified as a xanthine derivative.
Theophylline is a 1H-Purine-2,6-dione,3,7-dihydro,1,3-dimethyl-. The
molecular formula of theophylline, anhydrous is C7H8N4O2
with a molecular weight of 180.17.
Theophylline is a white odorless crystalline powder having a bitter taste.
Syrup: Citric acid, FD&C Red No. 40, flavors, glycerin, methylparaben,
propylene glycol, saccharin sodium, sodium benzoate, sorbitol, purified
Tablets 100 mg: Lactose, magnesium stearate, microcrystalline
cellulose, sodium starch glycolate;
Tablets 200 mg: Magnesium stearate, microcrystalline cellulose,
sodium starch glycolate.