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Potassium supplement (By mouth)

Treats potassium loss from the body. This is caused either by taking drugs such as diuretics (water pills) or from certain diseases.

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:

You should not use this medicine if you have had an allergic reaction to any type of medicine containing 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.
  • Take with food or right after eating.
  • You will need to mix the powder with water before using it. Most powders must be mixed with at least 4 ounces (1/2 cup) of water or juice. Make sure you understand how much water to mix the medicine with. Drink the mixture right after you mix it.
  • Swallow the extended-release tablet or extended-release capsule whole with 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.
  • You may notice something that looks like a tablet in your stool. This is normal.

If a dose is missed:

  • Take the missed dose as soon as possible.
  • If it is almost time for your next dose, wait until then to take your medicine and skip the missed dose.
  • You should not use two doses at the same time, unless ordered by your doctor.

How to Store and Dispose of This Medicine:

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
  • Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Drugs and Foods to Avoid:

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

  • Make sure your doctor knows if you are also using Midamor®, Aldactone®, Dyazide®, or any medicine that has potassium in it.
  • Make sure your doctor knows if you are using salt substitutes.
  • Many types of foods also contain potassium, such as bananas, fresh fruits and vegetables, and fresh meats. Do not eat too much of them while using this medicine.

Warnings While Using This Medicine:

  • Make sure your doctor knows if you are pregnant or breastfeeding.

Possible Side Effects While Using This Medicine:

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

  • Severe stomach pain or vomiting
  • Fast, pounding, or irregular heartbeat
  • Trouble breathing
  • Red or black stools with diarrhea
  • Numbness or tingling of hands or feet
  • Excessive weakness or heaviness of legs

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

  • Mild nausea and vomiting
  • Stomach discomfort
  • Loose stools

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: 4/4/2014
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