英文药名: K-Lor(Potassium Chloride Powder Packets) 中文药名: 氯化钾粉 生产厂家: Abbott 药品名称 【别名】氯化钾 【外文名】Potassium Chloride , Kaochlor, Kalcorid, Kalitabs 适应症 用于低钾血症（由严重吐泻不能进食、长期应用排钾利尿剂或肾上腺皮质激素所引起）的防治，亦可用于强心甙中毒引起的阵发性心动过速或频发室性期外收缩。   用法用量 补充钾盐: 多采用口服１次1g，１日３次。血钾过低病情危急或吐泻严重而口服不易吸收时，可用静滴，每次用１０％１０ｍｌ，用５％－１０％葡萄糖液５００ml稀释或根据病情酌定用量。 任何疑问,请遵医嘱! 注意事项 1.静滴过量时，可出现疲乏、肌张力减低、反射消失、周围循环衰竭、心率减慢，甚至心 脏停搏等不良反应。 2.肾功能严重减退者而尿少时慎用，无尿或血钾过高时忌用。 3.脱水病例一般先给不含钾的液体（也可给复方氯化钾液，因其含钾浓度低，不致引起高钾血症），等排尿后再补钾。 4.静滴时，速度宜慢，浓度不可太高（一般不超过０．２％－０．４％，治疗心律失常时可加至０．６％－０．７％），否则不仅引起局部剧痛，还可导致心脏停搏。 5.口服本品溶液或无糖衣片，对胃肠道有较强的刺激性，部分病人难以耐受。当病人服后出现腹部不适、疼痛等症状时，应加警惕。因服用氯化钾片等制剂时，有造成胃肠溃疡、坏死或狭窄等并发症的可能，宜采用本品的１０％水溶液稀释于饮料中，在餐后服用，以减少刺激性。如有缓释氯化钾片，则更好。 规格：20meq 30包 x 3 gm (克) KLOR-CON - potassium chloride powder, for solution KLOR-CON® Powder (Potassium Chloride for Oral Solution, USP) 20 mEq KLOR-CON®/25 Powder (Potassium Chloride for Oral Solution, USP) 25 mEq Description Fruit-flavored KLOR-CON® and KLOR-CON®/25 Powder (Potassium Chloride for Oral Solution, USP) are oral potassium supplements offered as powder for reconstitution in individual packets. Each packet of KLOR-CON® powder contains potassium 20 mEq and chloride 20 mEq provided by potassium chloride 1.5 g. Each packet of KLOR-CON®/25 powder contains potassium 25 mEq and chloride 25 mEq provided by potassium chloride 1.875 g. KLOR-CON® and KLOR-CON®/25 are sugar-free. Inactive ingredients: FD&C Yellow No. 6, malic acid, neotame, silicon dioxide, and natural and/or artificial flavors. Clinical Pharmacology Potassium ion is the principal intracellular cation of most body tissues. Potassium ions participate in a number of essential physiological processes, including the maintenance of intracellular tonicity, the transmission of nerve impulses, the contraction of cardiac, skeletal, and smooth muscle and the maintenance of normal renal function. Potassium depletion may occur whenever the rate of potassium loss through renal excretion and/or loss from the gastrointestinal tract exceeds the rate of potassium intake. Such depletion usually develops slowly as a consequence of prolonged therapy with oral diuretics, primary or secondary hyperaldosteronism, diabetic ketoacidosis, severe diarrhea, or inadequate replacement of potassium in patients on prolonged parenteral nutrition. Potassium depletion due to these causes is usually accompanied by a concomitant deficiency of chloride and is manifested by hypokalemia and metabolic alkalosis. Potassium depletion may produce weakness, fatigue, disturbances of cardiac rhythm (primarily ectopic beats), prominent U-waves in the electro-cardiogram, and in advanced cases flaccid paralysis and/or impaired ability to concentrate urine. Potassium depletion associated with metabolic alkalosis is managed by correcting the fundamental causes of the deficiency whenever possible and administering supplemental potassium chloride, in the form of high potassium food or potassium chloride solution or tablets. In rare circumstances (e.g., patients with renal tubular acidosis) potassium depletion may be associated with metabolic acidosis and hyperchloremia. In such patients potassium replacement should be accomplished with potassium salts other than the chloride, such as potassium bicarbonate, potassium citrate or potassium acetate. Indications and Usage 1) For therapeutic use in patients with hypokalemia with or without metabolic alkalosis; in digitalis intoxication and in patients with hypokalemic familial periodic paralysis. 2) For prevention of potassium depletion when the dietary intake of potassium is inadequate in the following conditions: patients receiving digitalis and diuretics for congestive heart failure; hepatic cirrhosis with ascites; states of aldosterone excess with normal renal function; potassium-losing nephropathy and certain diarrheal states. 3) The use of potassium salts in patients receiving diuretics for uncomplicated essential hypertension is often unnecessary when such patients have a normal dietary pattern. Serum potassium should be checked periodically, however, and if hypokalemia occurs, dietary supplementation with potassium-containing foods may be adequate to control milder cases. In more severe cases supplementation with potassium salts may be indicated. Contraindications Potassium supplements are contraindicated in patients with hyperkalemia since a further increase in serum potassium concentration in such patients can produce cardiac arrest. Hyperkalemia may complicate any of the following conditions: chronic renal failure, systemic acidosis such as diabetic acidosis, acute dehydration, extensive tissue breakdown as in severe burns, adrenal insufficiency, or the administration of a potassium-sparing diuretic (e.g., spironolactone, triamterene or amiloride). Contraindicated in persons demonstrating allergy to any of the components of the powder. Warnings Hyperkalemia In patients with impaired mechanisms for excreting potassium, the administration of potassium salts can produce hyperkalemia and cardiac arrest. This occurs most commonly in patients given potassium by the intravenous route but may also occur in patients given potassium orally. Potentially fatal hyperkalemia can develop rapidly and be asymptomatic. The use of potassium salts in patients with chronic renal disease, or any other condition which impairs potassium excretion, requires particularly careful monitoring of the serum potassium concentration and appropriate dosage adjustments. Interaction with Potassium-Sparing Diuretics Hypokalemia should not be treated by the concomitant administration of potassium salts and a potassium-sparing diuretic (e.g., spironolactone, triamterene or amiloride), since the simultaneous administration of these agents can produce severe hyperkalemia. Metabolic Acidosis Hypokalemia in patients with metabolic acidosis should be treated with an alkalinizing potassium salt such as potassium bicarbonate, potassium citrate or potassium acetate. Precautions General The diagnosis of potassium depletion is ordinarily made by demonstrating hypokalemia in a patient with a clinical history suggesting some cause for potassium depletion. Laboratory Tests In interpreting the serum potassium level, the physician should be aware that acute alkalosis per se can produce hypokalemia in the absence of a deficit in total body potassium while acute acidosis per se can increase the serum potassium concentration into the normal range even in the presence of a reduced total body potassium. The treatment of potassium depletion, particularly in the presence of cardiac disease, renal disease, or acidosis, requires careful attention to acid-base balance and appropriate monitoring of serum electrolytes, the electrocardiogram, and the clinical status of the patient. Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenicity, mutagenicity and fertility studies in animals have not been performed. Potassium is a normal dietary constituent. Pregnancy Pregnancy Category C Animal reproduction studies have not been conducted with potassium chloride. It is not known if potassium chloride causes fetal harm when administered to a pregnant woman or affects reproductive capacity. Potassium chloride should be given to a pregnant woman only if clearly needed. Nursing Mothers Many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from oral potassium supplements, a decision should be made whether to discontinue nursing or discontinue the drug, taking into account the importance of the drug to the mother. Pediatric Use Safety and effectiveness in children have not been established. Adverse Reactions The most common adverse reactions to oral potassium salts are nausea, vomiting, abdominal discomfort, and diarrhea. These symptoms are due to irritation of the gastrointestinal tract and are best managed by diluting the preparation further, taking the dose with meals, or reducing the dose. One of the most severe adverse effects is hyperkalemia (see Contraindications, Warnings and Overdosage). Skin rash has been reported rarely. Overdosage The administration of oral potassium salts to persons with normal excretory mechanisms for potassium rarely causes serious hyperkalemia. However, if excretory mechanisms are impaired or if potassium is administered too rapidly intravenously, potentially fatal hyperkalemia can result (see Contraindications and Warnings). It is important to recognize that hyperkalemia is usually asymptomatic and may be manifested only by an increased serum potassium concentration and characteristic electrocardiographic changes (peaking of T-waves, loss of P-wave, depression of S-T segment and prolongation of the QT interval). Late manifestations include muscle paralysis and cardiovascular collapse from cardiac arrest. Treatment measures for hyperkalemia include the following: (1) elimination of foods and medications containing potassium and of potassium-sparing diuretics; (2) intravenous administration of 300 to 500 mL/hr of 10% dextrose solution containing 10-20 units of insulin per 1000 mL; (3) correction of acidosis, if present, with intravenous sodium bicarbonate; (4) use of exchange resins, hemodialysis or peritoneal dialysis. In treating hyperkalemia, it should be recalled that in patients who have been stabilized on digitalis, too rapid a lowering of the serum potassium concentration can produce digitalis toxicity. Dosage and Administration Dosage must be adjusted to the individual needs of each patient but is typically in the range of 20 mEq per day for the prevention of hypokalemia to 40-100 mEq per day or more for the treatment of potassium depletion. The usual adult dose is 20-100 mEq of potassium per day (one KLOR-CON® 20 mEq packet 1 to 5 times daily after meals or one KLOR-CON® /25 25 mEq packet 1 to 4 times daily after meals). The contents of each KLOR-CON® packet should be dissolved in at least 4 ounces of cold water or other beverage. The contents of each KLOR-CON® /25 packet should be dissolved in at least 5 ounces of cold water or other beverage. These preparations, like other potassium supplements, must be properly diluted to avoid the possibility of gastrointestinal irritation. How Supplied KLOR-CON® Powder (Potassium Chloride for Oral Solution, USP) 20 mEq is supplied in cartons of 30 packets (NDC 0245-0035-30) and cartons of 100 packets (NDC 0245-0035-01). Each packet contains potassium 20 mEq and chloride 20 mEq provided by potassium chloride 1.5 g. KLOR-CON® /25 Powder (Potassium Chloride for Oral Solution, USP) 25 mEq is supplied in cartons of 30 packets (NDC 0245-0037-30) and cartons of 100 (NDC 0245-0037-01). Each packet contains potassium 25 mEq and chloride 25 mEq provided by potassium chloride 1.875g. Store at controlled room temperature, 15-30°C (59-86°F).