<p><strong>Polyethylene Glycol 3350</strong>&nbsp;exerts an osmotic action in the gut, which induces a laxative effect. Polyethylene Glycol 3350 increases the stool volume, which triggers colon motility via neuromuscular pathways. Electrolytes combined with Polyethylene Glycol 3350 are exchanged across the intestinal barrier (mucosa) with serum electrolytes and excreted in fecal water without net gain or loss of sodium, potassium and water.<br />
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<strong>Sodium chloride</strong>&nbsp;is the major extracellular cation. It is important in electrolyte and fluid balance, osmotic pressure control and water distribution as it restores sodium ions. It is used as a source of electrolytes and water for hydration, treatment of metabolic acidosis, priming solution in haemodialysis and treatment of hyperosmolar diabetes. It is also used as diluents for infusion of compatible drug additives.<br />
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<strong>Sodium bicarbonate</strong>&nbsp;raises blood and urinary pH by dissociation to provide bicarbonate ions, which neutralises the hydrogen ion concentration. It also neutralises gastric acid via production of carbon dioxide.<br />
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<strong>Potassium chloride</strong>&nbsp;is a major cation of the intracellular fluid. It plays an active role in the conduction of nerve impulses in the heart, brain and skeletal muscle; contraction of cardiac skeletal and smooth muscles; maintenance of normal renal function, acid-base balance, carbohydrate metabolism and gastric secretion.</p>