Micro-K for Liquid Suspension
(Generic versions may still be available.)
Micro-K for Liquid Suspension Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
Micro-K (potassium chloride extended-release) is used to prevent or treat low amounts of potassium in the blood. It is a mineral supplement. The brand name Micro-K is no longer available in the U.S. Generic versions may be available. Common side effects include stomach pain/upset, nausea, vomiting, or diarrhea.
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 breast-feeding.
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.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
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.
Read the entire detailed patient monograph for Micro-K for Liquid Suspension (Potassium Chloride Extended Release Formulation for Liquid Suspension) »
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Get medical help right away if you have any very serious side effects, including: vomit that looks like coffee grounds, stomach/abdominal pain, black/tarry stools.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the entire patient information overview for Micro-K for Liquid Suspension (Potassium Chloride Extended Release Formulation for Liquid Suspension)»
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Micro-K for Liquid Suspension FDA Prescribing Information: Side Effects
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.
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) »
Additional Micro-K for Liquid Suspension Information
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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