What is Klor-Con?


Klor Con contains potassium chloride, a mineral found in many foods that is necessary for various functions in your body, especially your heart rate.

Klor Con is used to prevent or treat low levels of potassium in the blood (hypokalemia). Potassium levels can be low due to an illness or from taking certain medications, or after a prolonged illness with diarrhea or vomiting.


Klor Con is available as effervescent tablets, extended release tablets, extended release capsules (spray) and powder for oral solution.

Warnings Before Take Klor Con

You should not use Klor Con if you have high levels of potassium in your blood (hyperkalemia), or if you also take a "potassium-sparing" diuretic.


To make sure Klor Con is helping your condition, your blood may need to be tested regularly. Your heart rate and rhythm can also be checked using an electrocardiograph or EKG (sometimes called an EKG) to measure the heart's electrical activity. Don't miss any scheduled appointments.

Serious side effects of potassium include an uneven heartbeat, muscle weakness or limping, severe stomach pain, and numbness or tingling in the hands, feet, or mouth.

Do not stop taking Klor Con without first consulting your doctor. If you suddenly stop taking potassium, your condition may worsen.


Do not crush, chew, crush, or inhale an extended-release tablet or capsule. Swallow the pill whole. Breaking or crushing the pill can cause a large amount of the drug to be released at once. Swallowing a potassium tablet may irritate your mouth or throat. Take Klor Con with food or immediately after a meal.

Before taking this Klor Con

You should not use Klor-Con if you are allergic to potassium chloride, or if:

  • You have high levels of potassium in your blood (hyperkalemia); or
  • You take a "potassium-sparing" diuretic (water pill) such as amiloride, spironolactone, or triamterene.

To make sure Klor-Con is safe for you, tell your doctor if you have ever had:

  • Heart problems;
  • High blood pressure;
  • Liver or kidney disease;
  • A large tissue injury such as a severe burn;
  • An electrolyte imbalance (such as low levels of calcium or magnesium in your blood);
  • Trouble swallowing;
  • Slow digestion;
  • Stomach bleeding, an ulcer, or a blockage in your stomach or intestines;
  • An adrenal gland disorder;
  • Diabetes; or
  • Severe dehydration.

Tell your doctor if you are pregnant or breastfeeding.

How should I take Klor Con?

Take Klor Con exactly as prescribed by your doctor. Follow all directions on your prescription label and read all medication guides or leaflets. Your doctor may change your dose from time to time.

Take Klor Con with food if the medicine upsets your stomach.

Always follow the directions on the medicine label to give this medicine to a child.

Take the tablet or capsule with a full glass of water.

Do not crush, chew or swallow a potassium tablet or capsule. Swallowing the pill may irritate your mouth or throat.


Carefully measure out the liquid medicine. Use the dosing syringe provided or use a medicine measuring device (not a kitchen spoon). Mix the oral solution with at least 4 ounces of water before taking.

You may need to follow a special diet while using Klor Con. Follow all instructions from your doctor or dietician. Learn about foods to eat or avoid to help manage your condition.

Call your doctor if you have trouble swallowing a Klor Con capsule or tablet. You may dissolve the tablet in water or mix the medicine from a capsule with soft food. Follow your doctor's instructions carefully.

You may need regular medical tests. Your heart's function may need to be checked with an electrocardiograph or EKG (sometimes called an EKG). Even if you don't have symptoms, tests can help your doctor determine if this medicine is working.

Some tablets are made with a shell that is not absorbed or dissolved in the body. Some of this shell may appear in your stool. This is normal and will not make the medicine less effective.


Store at room temperature away from moisture, heat and light. Keep the medicine in a closed container.

What happens if I miss a dose of Klor Con?

Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at once.

What happens if I overdose Klor Con?

Overdose symptoms may include stomach pain, vomiting, irregular heartbeat, chest pain, muscle weakness, loss of movement, numbness or tingling, or lightheadedness.

What should I avoid while taking Klor Con?

Do not use potassium supplements or other products containing potassium unless your doctor has told you to. Salt substitutes or low-salt foods often contain potassium. Read the label of any food or medicine to see if it contains potassium.

Klor Con side effects

Get emergency medical help if you have signs of an allergic reaction to Klor-Con: hives; difficulty breathing; swelling of your face, lips, tongue or throat.

Stop using Klor Con and call your doctor right away if you:

  • Severe throat irritation;
  • Chest pain, trouble breathing;
  • Stomach bloating, severe vomiting, severe stomach pain;
  • High potassium level - nausea, weakness, tingly feeling, chest pain, irregular heartbeats, loss of movement; or
  • Signs of stomach bleeding - bloody or tarry stools, coughing up blood or vomit that looks like coffee grounds.

Common Klor Con side effects may include:

  • Nausea, vomiting, diarrhea;
  • Gas, stomach pain; or
  • The appearance of a Klor-Con tablet in your stool.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You can report side effects to the FDA at 1-800-FDA-1088.

What other drugs will affect Klor Con?

Tell your doctor about all your other medicines, especially:
  • Medicine to prevent organ transplant rejection;
  • A diuretic or "water pill"; or
  • Heart or blood pressure medication.
This list is not complete. Other drugs may interact with potassium chloride, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.