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Potassium Chloride Er

Potassium Chloride ER 10MEQ

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What is Potassium Chloride Er?

Potassium Chloride ER is a medication used to help maintain proper potassium levels in the body. It is often prescribed for individuals who may not be getting enough potassium from their diet or who lose potassium due to certain medical conditions.

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What is Potassium Chloride Er ?

Potassium Chloride ER is a medication used to help maintain proper potassium levels in the body. It is often prescribed for individuals who may not be getting enough potassium from their diet or who lose potassium due to certain medical conditions.

Source: MedlinePlus, U.S. National Library of Medicine

  • Severe stomach pain or vomiting
  • Throat pain, feeling as if pill is stuck in the throat
  • Confusion, weakness, uneven heartbeat, trouble breathing, numbness in your hands, feet, or lips
  • Bloody or black, tarry stools
  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
  • Tell your doctor if you are pregnant or breastfeeding or if you have kidney disease, heart disease, or problems with your digestive system.
  • This medicine may cause the following problems:Bleeding or ulcers in the digestive systemPotassium levels that are too high
  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
  • Keep all medicine out of the reach of children. Never share your medicine with anyone.
  • Throat pain, feeling as if pill is stuck in the throat
What is potassium chloride ER used for?
Potassium chloride extended-release is FDA-approved to treat and prevent hypokalemia (low blood potassium), with or without metabolic alkalosis, when diet or lowering a diuretic dose is not enough. It is commonly used by people on potassium-wasting water pills and to replace potassium lost through vomiting, diarrhea, or certain kidney and hormonal conditions.
Can you crush or split potassium chloride extended-release tablets?
No. Swallow the tablets whole with a full glass of water and food. Do not crush, chew, or suck them, because concentrated potassium chloride released all at once can irritate or ulcerate the digestive tract. Some products (such as sprinkle or micro-encapsulated forms) can be opened onto soft food only if the label allows it, so ask your pharmacist about your specific product.
What are the signs of too much potassium (hyperkalemia)?
Hyperkalemia can be dangerous and may cause no symptoms at all, which is why blood tests matter. When symptoms do occur they can include muscle weakness or tingling, nausea, and an irregular or slow heartbeat, and severe cases can lead to dangerous heart rhythms or cardiac arrest. Seek medical care promptly if you notice these signs, and keep up with any potassium monitoring your provider orders.
What foods and medications should you avoid while taking potassium chloride?
Tell your provider before using salt substitutes or potassium-rich foods in large amounts, since these add to your potassium load. Certain medications can raise potassium to unsafe levels, including potassium-sparing diuretics (amiloride, triamterene, spironolactone, eplerenone) and ACE inhibitors or ARBs. Kidney impairment also increases the risk. Share your full medication list so your prescriber can adjust and monitor safely.
Is potassium chloride ER available over the counter or prescription only?
Prescription-strength potassium chloride extended-release tablets are prescription only. Low-dose potassium supplements sold over the counter are much weaker and are not a substitute for prescribed therapy. Because of the risk of high potassium, do not start prescription potassium chloride on your own; use it only under a healthcare provider's direction.
How much does Potassium Chloride Er cost without insurance?
The price of Potassium Chloride Er without insurance varies by pharmacy, dosage, and quantity. Rx.com compares cash prices at more than 60,000 US pharmacies so you can find the lowest price near you.
What are the common side effects of Potassium Chloride Er?
Common side effects of Potassium Chloride Er may include: Severe stomach pain or vomiting, Throat pain, feeling as if pill is stuck in the throat, Confusion, weakness, uneven heartbeat, trouble breathing, numbness in your hands, feet, or lips, Bloody or black, tarry stools, Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing. This is not a complete list — consult your pharmacist or doctor for full side effect information.
Is there a generic version of Potassium Chloride Er?
Generic versions may be available for Potassium Chloride Er. Generics contain the same active ingredients as brand-name drugs and are typically 80–90% cheaper. Search Potassium Chloride Er on Rx.com to compare generic and brand prices at pharmacies near you.
What is the cheapest pharmacy for Potassium Chloride Er?
The cheapest pharmacy for Potassium Chloride Er depends on your location and dosage. Rx.com compares prices at CVS, Walgreens, Walmart, Kroger, Costco, and thousands of independent pharmacies. Enter your ZIP code on Rx.com to find the lowest price for Potassium Chloride Er near you.

Potassium Chloride Er Coupons & Prices

Potassium Chloride ER 10MEQ

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Potassium Chloride Er Tablet Extended Release — prescription drug image
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Potassium Chloride Er 20meq (30)
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Looking for a potassium chloride ER coupon? Potassium chloride extended-release is a low-cost generic potassium supplement (sold under brand names like Klor-Con, K-Dur, and Micro-K) that doctors prescribe to treat and prevent low blood potassium (hypokalemia). Even though the generic is already inexpensive, the cash price can vary a lot from one pharmacy to the next, so it pays to compare. Rx.com checks prices across more than 60,000 U.S. pharmacies and gives you a free discount coupon you can use whether or not you have insurance. Enter your ZIP above to see today's price near you.

What is potassium chloride ER and how does it work?

Potassium chloride ER is an oral mineral electrolyte supplement in the class of potassium replenishers. It is FDA-approved for the treatment and prevention (prophylaxis) of hypokalemia, or low blood potassium, with or without metabolic alkalosis, in patients for whom eating more potassium-rich foods or lowering a diuretic dose is not enough. Potassium is essential for normal heart rhythm, muscle contraction, and nerve signaling.

It is most often prescribed for people taking potassium-wasting diuretics such as loop or thiazide water pills, and to replace potassium lost through vomiting, diarrhea, or certain kidney and hormonal conditions. The extended-release design lets the potassium dissolve gradually rather than all at once. It comes in several brand names, including Klor-Con, Klor-Con M, Klor-Con Sprinkle, K-Dur, K-Tab, and Micro-K.

Cost of potassium chloride ER without insurance

Potassium chloride is available as an FDA-approved, substitutable generic, so it is one of the more affordable prescriptions on the market. That said, cash prices are not uniform: two pharmacies on the same street can charge very different amounts for the identical generic tablet, which is exactly why comparing before you fill matters.

Rx.com compares the cash price across more than 60,000 pharmacies and gives you a free coupon that often beats the standard shelf price, even if you have no insurance or a high deductible. There is no membership fee. Enter your ZIP code above to see today's price and print, text, or show the coupon at the counter.

Brands and related medications

Because a substitutable generic exists, most people can be dispensed generic potassium chloride ER in place of a brand and pay less for the same active ingredient. Brand-name versions that use potassium chloride include Klor-Con and Klor-Con M, K-Dur, and the Micro-K sprinkle capsules. All contain the same potassium chloride salt in different tablet or capsule forms.

Potassium chloride is frequently prescribed alongside diuretics that deplete potassium, such as furosemide (a loop diuretic). By contrast, potassium-sparing diuretics like spironolactone raise potassium, so they are generally not combined with a potassium supplement without careful monitoring. Always let your prescriber and pharmacist know every medication you take.

Safety and side effects

Swallow potassium chloride ER tablets whole with a full glass of water and food. Do not crush, chew, or suck the tablets, because solid oral potassium chloride can cause ulcers or narrowing (stenosis) of the digestive tract if a tablet lodges against the lining. Stop the medication and contact your doctor right away if you have severe vomiting, abdominal pain, bloating, or signs of GI bleeding. Common, milder side effects include nausea, vomiting, diarrhea, stomach discomfort, and gas.

The main serious risk is hyperkalemia, or dangerously high potassium, which can trigger irregular heart rhythms and even cardiac arrest and may cause no symptoms at all. For this reason your provider monitors your blood potassium and sometimes an ECG. Potassium chloride is high-risk or should be avoided with potassium-sparing diuretics (amiloride, triamterene, spironolactone, eplerenone), ACE inhibitors and ARBs, and in kidney impairment. If potassium is very low (below 2.5 mEq/L), IV potassium is used instead. This is general information, not medical advice, so follow your own prescriber's instructions.

Sources & accuracy

This Potassium Chloride Er information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.

Verify the official label: Potassium Chloride Er on DailyMed (FDA)

Reviewed against FDA labeling · Last reviewed July 2026

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