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Potassium supplement (By mouth)

Treats potassium loss from the body.

Brand Name(s):

Effer-K, K-99, K-Bicarb, K-Dur, K-Effervescent, K-Glucon, K-Lyte, K-Lyte Cl, K-Tab, K-Vescent, Klor-Con, Klor-Con 10, Klor-Con 8, Klor-Con M10, Klor-Con M15

There may be other brand names for this medicine.

When This Medicine Should Not Be Used:

This medicine is not right for everyone. Do not use it if you had an allergic reaction to potassium or if you have severe kidney disease.

How to Use This Medicine:

Granule, Kit, Tablet, Powder, Fizzy Tablet, Long Acting Tablet, Long Acting Capsule, Liquid, Capsule

  • Take your medicine as directed.
  • Follow the instructions on the medicine label if you are using this medicine without a prescription.
  • Take with food or right after eating.
  • Powder or effervescent tablet: Mix with water before using. Most powders and tablets must be mixed with at least 4 ounces (1/2 cup) of water or juice, but your specific medicine might have different directions. Drink the mixture right after you mix it.
  • Extended-release tablet or capsule: Swallow with a full glass of water. Do not chew or crush.
  • Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.
  • Carefully follow your doctor's instructions about any special diet.
  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose.
  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

Drugs and Foods to Avoid:

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

  • Some foods and medicines can affect how potassium supplements work. Tell your doctor if you are using any of the following:
    • Diuretic (water pill)
    • ACE inhibitor blood pressure medicine
    • Other medicine that contains potassium
    • Salt substitute that contains potassium

Warnings While Using This Medicine:

  • Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, diabetes, heart disease, or digestion problems or trouble swallowing.
  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Possible Side Effects While Using This Medicine:

Call your doctor right away if you notice any of these side effects:

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
  • Bloody or black, tarry stools
  • Confusion, weakness, uneven heartbeat, trouble breathing, numbness in your hands, feet, or lips
  • Severe stomach pain or vomiting

If you notice these less serious side effects, talk with your doctor:

  • Mild nausea, diarrhea, vomiting, gas

If you notice other side effects that you think are caused by this medicine, tell your doctor

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088


Last Updated: 10/4/2014


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