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. 2014 Apr 14;82(2):423–440. doi: 10.3797/scipharm.1301-27

Tab. 4.

Compositions of the buoyant layers

No. Ingredients Formulation codes

B1 B2 B3 B4 B5
1 HPMC K 100M 140 150 160 130 160
2 Sodium bicarbonate 50 60 70 90 90
3 Citric acid 50 50 60 70 80
4 Dicalcium phosphate 20
5 Microcrystalline cellulose 20
6 Lactose 30 30 30