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Potassium Chloride

Potassium chloride is a mineral supplement primarily used for treating those who suffer from low blood levels of potassium. Potassium is critical for cell vitality and is essential for the health and proper function of the muscles, heart, nerves, kidneys, and digestive system. The usage of certain types of drugs, such as diuretic drugs, as well as various medical conditions and abnormalities such as kidney disease, adrenal gland and GI disorders, as well as diarrhea and vomiting to excess may cause potassium deficiency. Deficiencies in potassium can lead to many potentially harmful conditions such as heart rhythm problems, weakness and fatigue, kidney problems, and even paralysis.


Potassium chloride can be conveniently compounded into many forms tailored to your specific needs. Your compounding pharmacist can deliver the supplement via powders, oral liquids, granules, effervescent tablets, extended-release tablets and standard tablets, as well as extended-release capsules. It is often prescribed for use one to two times per day, but this is only a standard dosage and your doctor will decide what dosage is right for you specifically. Take potassium chloride with a full glass of juice or water to fend against potential stomach irritation. Ask your doctor to explain how to take your dosage as each form of delivery has its own unique set of instructions for proper administration.


The possibility for side effects is an unfortunate but expected result with the use of many drugs and supplements, sometimes side effects are experienced only while the body adjusts, but sometimes for an extended period. It is important to understand the potential of side effects so you can be prepared to act accordingly if you experience any. Talk to your doctor and ask her or him to explain all the possible side effects that could be experienced while using potassium chloride. If you experience a side effect that feels like it is lingering or hanging around, or perhaps exacerbating, see your doctor right away. Common side effects seen with potassium chloride are:

  • Upset Stomach
  • Vomiting
  • Diarrhea

Many other side effects are possible as each person is unique, so if any of the above or any other side effects are experienced, monitor your condition closely and seek medical assistance if you feel it is warranted, and certainly if any side effects are increasing in intensity and/or lingering.

Severe Side Effects:

Some users may unfortunately experience more severe side effects that warrant prompt medical treatment. If you notice any severe side effects while taking potassium chloride, see your doctor at once or get medical treatment at a medical facility right away. Some of the possible severe side effects are listed below.

  • Stomach Pain
  • Stomach Bulging
  • Black Stools
  • Heavy Legs
  • Weakness of Legs
  • Lethargy / Low Energy
  • Cold Skin
  • Gray Skin
  • Pale Skin
  • Mental Confusion
  • Prickling, Burning, Tingling Feelings (arms, hands, legs, feet)
  • Tightness / Tight Sensations (arms, hands, legs, feet)


If you think potassium chloride may be an option for you, talk to your doctor about the possible benefits and risks before beginning use. Never take any drugs or supplements without the prior approval from your doctor.

Potassium chloride may be contraindicated for a variety of conditions, etc. Ask your doctor to explain all possible contraindications.

  • "It is rare to find health professionals who are so willing to educate the patient on what they need to know."

    Clair C. | West Hollywood, CA