Review Article

Osmotic Drug Delivery System as a Part of Modified Release Dosage Form

Table 1

List of various osmogens with their osmotic pressure [32, 34].

Osmotic pressures of saturated solution of commonly used osmogensOsmotic pressure (atm)

Sodium chloride356
Fructose 355
Potassium chloride245
Sucrose150
Xylitol104
Sorbitol84
Dextrose82
Citric acid69
Tartaric acid67
Mannitol38
Potassium sulphate39
Lactose23
Fumaric acid10
Adipic acid8
Lactose-fructose500
Dextrose-fructose450
Sucrose-fructose430
Mannitol-fructose415
Sodium chloride356
Fructose335
Lactose-sucrose250
Potassium chloride245
Lactose-dextrose225
Mannitol-dextrose225
Dextrose-sucrose190
Mannitol-sucrose170
Sucrose150
Mannitol-Lactose130
Dextrose82
Potassium sulphate39
Mannitol38
Sodium phosphate tribasic·12H2O36
Sodium phosphate dibasic·7 H2O31
Sodium phosphate dibasic·12 H2O31
Sodium phosphate monobasic·H2O28
Sodium phosphate dibasic. Anhydrous21