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Micro-K for Liquid Suspension

Last reviewed on RxList: 12/26/2005
Please Note: This Brand Name drug is no longer available in the US. (Generic versions may still be available.)
Micro-K for Liquid Suspension Side Effects Center

Last reviewed on RxList 3/28/2016

Micro-K (potassium chloride extended-release) is a mineral supplement used to prevent or treat low amounts of potassium in the blood. The brand name Micro-K is no longer available in the U.S. Generic versions may be available. Common side effects of Micro-K (potassium chloride extended-release) include:

  • stomach pain/upset
  • nausea
  • vomiting
  • diarrhea
  • slight tingling in your hands or feet, or
  • the appearance of a potassium chloride tablet in your stool.

Dosage must be adjusted to the individual needs of each patient. The dose of potassium chloride for the prevention of hypokalemia is usually 20 mEq per day. Doses of 40 to 100 mEq per day or more are used for the treatment of potassium depletion. Potassium chloride may interact with ACE inhibitors, angiotensin receptor blockers (ARBs), eplerenone, potassium-sparing diuretics (water pills), salt substitutes containing potassium, digoxin, drospirenone, anticholinergics, antihistamines, antispasmodics, anti-Parkinson's drugs, belladonna alkaloids, or bladder control drugs. Tell your doctor all prescription and over-the-counter medications and supplements you use. Potassium chloride should be used only when prescribed during pregnancy. Potassium passes into breast milk. Consult your doctor before breastfeeding.

Our Micro-K (potassium chloride extended-release) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Micro-K for Liquid Suspension Consumer Information

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

Stop using this medication and call your doctor at once if you have any of these serious side effects:

  • confusion, anxiety, feeling like you might pass out;
  • uneven heartbeat;
  • extreme thirst, increased urination;
  • leg discomfort;
  • muscle weakness or limp feeling;
  • numbness or tingly feeling in your hands or feet, or around your mouth;
  • severe stomach pain, ongoing diarrhea or vomiting;
  • black, bloody, or tarry stools; or
  • coughing up blood or vomit that looks like coffee grounds.

Less serious side effects may include:

  • mild nausea or upset stomach;
  • mild or occasional diarrhea;
  • slight tingling in your hands or feet; or
  • appearance of a potassium chloride 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 may report side effects to FDA at 1-800-FDA-1088.

Read the entire detailed patient monograph for Micro-K for Liquid Suspension (Potassium Chloride Extended Release Formulation for Liquid Suspension)

Micro-K for Liquid Suspension Professional Information

SIDE EFFECTS

One of the most severe adverse effects is hyperkalemia (see CONTRAINDICATIONS, WARNINGS, and OVERDOSAGE).

Gastrointestinal bleeding and ulceration have been reported in patients treated with microencapsulated KCl (see WARNINGS).

In addition to bleeding and ulceration, perforation and obstruction have been reported in patients treated with solid KCl dosage forms, and may occur with Micro-K LS.

The most common adverse reactions to the oral potassium salts are nausea, vomiting, flatulence, abdominal pain/discomfort, and diarrhea. These symptoms are due to the irritation of the gastrointestinal tract and are best managed by taking the dose with meals, or reducing the amount taken at one time.

Skin rash has been reported rarely with potassium preparations.

In a controlled clinical study, Micro-K LS was associated with an increased frequency of gastrointestinal intolerance (e.g., diarrhea, loose stools, abdominal pain, etc.) compared to equal doses (100 mEq/day) of Micro-K Extencaps (see WARNINGS, Diarrhea or Dehydration). This finding was attributed to an inactive ingredient used in the Micro-K LS formulation that is not present in the Micro-K Extencaps formulation.

Read the entire FDA prescribing information for Micro-K for Liquid Suspension (Potassium Chloride Extended Release Formulation for Liquid Suspension)

Related Resources for Micro-K for Liquid Suspension

© Micro-K for Liquid Suspension Patient Information is supplied by Cerner Multum, Inc. and Micro-K for Liquid Suspension Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.

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