Research Article

Formulation and Evaluation of Fixed-Dose Combination of Bilayer Gastroretentive Matrix Tablet Containing Atorvastatin as Fast-Release and Atenolol as Sustained-Release

Table 2

Composition of atenolol sustained-release tablet formulation.

Ingredient (mg)Amount (mg)

Atenolol50.0
Xanthan gum 14.0
Guar gum 14.0
Sodium bicarbonate 14.0
Citric acid 7.0
Talc 2.8
Magnesium stearate 1.4
Spray dried lactose q.s.
Tablet weight140.0

q.s.: quantity sufficient.