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Klor-Con Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
Klor-Con (potassium chloride) Extended-release Tablets are used to prevent or to treat low blood levels of potassium (hypokalemia). Potassium levels can be low as a result of a disease or from taking certain medicines, or after a prolonged illness with diarrhea or vomiting. It is a mineral. Common side effects include stomach pain/upset, nausea, vomiting, or diarrhea.
The dose of Klor-Con for the prevention of hypokalemia is typically in the range of 20 mEq per day. Doses of 40-100 mEq per day or more are used for the treatment of potassium depletion. Klor-Con may interact with eplerenone, digoxin, quinidine, bronchodilators, ACE inhibitors, or diuretics (water pills). Tell your doctor all medications and supplements you use. Klor-Con should be used only when prescribed during pregnancy. Potassium passes into breast milk. Consult your doctor before breast-feeding.
Our Klor-Con (potassium chloride) 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.
Klor-Con in Detail - Patient Information: Side Effects
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 Klor-Con (Potassium Chloride) »
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Klor-Con Overview - Patient Information: Side Effects
An empty tablet or capsule shell may appear in your stool. This effect is harmless because your body has already absorbed the medication.
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.
Tell your doctor right away if you have any serious side effects, including: difficult/painful swallowing, feeling as if the capsule/tablet is stuck in your throat.
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 Klor-Con (Potassium Chloride)»
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Klor-Con FDA Prescribing Information: Side Effects
One of the most severe adverse effects is hyperkalemia (see CONTRAINDICATIONS, WARNINGS and OVERDOSAGE). There also have been reports of upper and lower gastrointestinal conditions including obstruction, bleeding, ulceration and perforation (see CONTRAINDICATIONS and WARNINGS).
The most common adverse reactions to oral potassium salts are nausea, vomiting, flatulence, abdominal pain/discomfort and diarrhea. These symptoms are due to 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.
Read the entire FDA prescribing information for Klor-Con (Potassium Chloride) »
Additional Klor-Con Information
Klor-Con - User Reviews
Klor-Con User Reviews
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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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