SPL Set ID: 56bb2200-da53-4f91-bdca-d76cc1ad6f8d

Potassium chloride extended-release capsules USP, 8 mEq and 10 mEq are oral dosage forms of microencapsulated potassium chloride containing 600 and 750 mg, respectively, of potassium chloride USP equivalent to 8 and 10 mEq of potassium. Dispersibility of potassium chloride (KCl) is accomplished by microencapsulation and a dispersing agent. The resultant flow characteristics of the KCl microcapsules and the controlled release of K+ ions by the microcapsular membrane are intended to avoid the possibility that excessive amounts of KCl can be localized at any point on the mucosa of the gastrointestinal tract. Each crystal of KCl is microencapsulated by a process with an insoluble polymeric coating which functions as a semi-permeable membrane; it allows for the controlled release of potassium and chloride ions over an eight-to-ten-hour period. Fluids pass through the membrane and gradually dissolve the potassium chloride within the micro-capsules. The resulting potassium chloride solution slowly diffuses outward through the membrane. Potassium chloride extended-release capsules USP, 600 mg (8 mEq K) and 750 mg (10 mEq K) are electrolyte replenishers. The chemical name of the active ingredient is potassium chloride and the structural formula is KCl. Potassium chloride USP occurs as a white, granular powder or as colorless crystals. It is odorless and has a saline taste. Its solutions are neutral to litmus. It is freely soluble in water and insoluble in alcohol. The inactive ingredients are ethyl cellulose, triethyl citrate, talc, sodium lauryl sulfate, gelatin, titanium dioxide, shellac, propylene glycol, potassium hydroxide. In addition 600 mg [8 mEq K] capsule also contain black iron oxide and 750 mg [10 mEq K] capsules also contain FD&C blue #1 and FD&C red # 40.