Klor-Con (potassium chloride) prescription available online 

If you are suffering from hypokalemia (low potassium), Klor-Con (potassium chloride) can help. Get a new prescription or refill of Klor-Con from a board-certified doctor online.*

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Help treat Hypokalemia

Available by capsules, tablets, or injectable solution

Request Klor-Con in as little as 15 minutes, with or without insurance*

*Prescriptions are provided at the doctor’s discretion. Learn more about our controlled substances policy and how you can save up to 80% with our prescription discount card.

About Klor-Con (potassium chloride)

Klor-Con (potassium chloride) is considered an electrolyte, which is a mineral medication used to treat low potassium levels in the blood. It works to bring those potassium levels up to normal range. This is important because potassium plays a key role in the kidneys, heart, and muscles, as well as in nerve health.

Some conditions that Klor-Con is known to treat include hypokalemia. Klor-Con is available only by prescription. It is available in a generic formulation as well as under different brand names, including KDur, Slow K, Kaon Cl10, KCl.

Klor-Con may be prescribed in the following forms: capsules, tablets, or injectable solution. It’s always important to follow the specific instructions on your prescription, as they can vary based on the formulation and dosage that you are prescribed.

If you are prescribed Klor-Con, be sure to complete the full course of the electrolyte unless your doctor specifically tells you to stop.

If you don’t complete your prescription, the electrolyte may not fully treat your hypokalemia. 

Klor-Con uses

There are many FDA-approved uses for Klor-Con, but it may also be used off-label to treat other conditions. Your online medical professional may prescribe it for any of the following common reasons. It’s also possible that your health care provider may prescribe it for other reasons not listed here. If you have questions about why a medication is prescribed, ask your online doctor or pharmacist.

  • Hypokalemia (low potassium)

    Hypokalemia is a condition in which there is low level of potassium in your blood. Potassium is an essential mineral in your body that plays a role in normal functioning of muscles, the heart, and the digestive system.

    A normal person can absorb enough potassium through usual dietary potassium intake and achieve normal potassium levels. However, there are conditions that can stop potassium retention and severely lower a person's potassium level even with usual dietary intake. Some of these conditions include severe vomiting and diarrhea, hormone issues, or effects of long term treatment with diuretics. In these cases, potassium supplements can be helpful.

Klor-Con side effects

The side effects associated with taking Klor-Con are typically mild.

  • Some of the reported side effects of Klor-Con include:

    • Nausea

    • Vomiting

    • Diarrhea


    Other possible side effects include:

    • Skin rash

    • Severe throat irritation

    • Difficulty breathing

    • Swelling of the face, lips, tongue, or throat

    • Increased urinary potassium excretion (not necessary a negative effect)

    • Severe stomach pain


    Some serious side effects may include having a difficult time swallowing, an uneven heartbeat, muscle weakness, severe stomach pain, or numbness in your hands and feet. If you experience any of these side effects, contact your doctor right away.

How to take Klor-Con

Your pharmacist will provide you with instructions on how to take your Klor-Con prescription.

Be sure to read your prescription label and follow the instructions. Call your doctor or pharmacy if you have any questions.

Klor-Con is either used to treat low potassium levels or used to prevent low potassium in those who have conditions that can lower the amount of potassium in your blood.

Klor-Con may be prescribed for those with severe vomiting and diarrhea or hyperaldosteronism, which is when the adrenal glands release too much aldosterone.

Klor-Con may be prescribed as capsules, tablets, or injectable potassium chloride solution. In solid oral dosage forms, Klor-Con is taken by mouth with a meal and water to help prevent an upset stomach. Do not lie down for at least 10 minutes after taking the potassium chloride tablet, and make sure to swallow the medication whole without crushing or chewing the solid oral dosage form.

Klor-Con may also be prescribed as a microcapsule. This allows a person to sprinkle the contents of the capsule into soft food, or powder form (effervescent potassium preparations) that can be mixed with liquid drinks for easier consumption.

The dosage of potassium chloride administered will be determined by your doctor and will be based on whether you are treating hypokalemia or preventing it.

Keep in mind that you have to take Klor-Con regularly in order to experience the benefits of the medication.

If you miss a dose of Klor-Con, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take two doses of Klor-Con at the same time.

What to avoid while taking Klor-Con

Klor-Con has many drug interactions with medications or supplements. Don’t change what you are taking without checking with your doctor or pharmacist. That includes other medications or supplements, as well as over-the-counter drugs.

Some other drugs should not be mixed with Klor-Con, and your doctor is going to be your best resource as you determine whether or not Klor-Con is safe to take with other medicine and supplements in your current treatment plan.

In addition to the medications on this list, be sure to speak with your doctor about all of the medications and supplements you take.

Here are some of the drugs that are known to cause drug interactions with Klor-Con.

  • Lisinopril

  • Losartan

  • Spironolactone

  • Acetaminophen

  • Aspirin

  • Atropine

  • Benztropine

  • Angiotensin converting enzyme inhibitors

  • Potassium sparing diuretics


There are dozens of other possible drug interactions when taking Klor-Con. A great way to talk about medications and supplements you are currently taking is to make a list before your doctor’s appointment, so you and your doctor can look and see what can safely be taken with Klor-Con.

You should also avoid other potassium supplements, salt substitutes or potassium containing food.

There are some considerations to keep in mind before taking Klor-Con. Be sure to tell your doctor if you have the following conditions:

  • You are pregnant or plan to get pregnant

  • You are breastfeeding

  • You have trouble swallowing

  • You are taking other medications like ACE inhibitors or diuretics

  • You have liver disease

  • You have kidney disease, decreased renal function, chronic renal disease

  • You have an adrenal gland disorder

  • You have high blood pressure


Be sure to tell your doctor about your medical history so they can determine if Klor-Con is a good fit for you.

Ask your doctor or pharmacist if it is acceptable to consume alcohol while taking Klor-Con.

Medication alternatives to Klor-Con

If your healthcare provider prefers to put you on another treatment altogether, they may suggest another brand or an electrolyte in another drug class. Here are some common doctor-recommended alternatives based on your health issue:

  • Hypokalemia

    Effer-K (potassium bicarbonate)

Klor-Con prescription FAQs

  • How much does Klor-Con cost?

    Klor-Con starts from $0.68 to $0.78 per pill for the immediate-release tablets and from $0.84 to $0.94 per pill for the extended-release tablets, depending on the pharmacy you visit. The cost of Klor-Con will also vary depending on your insurance coverage.

  • How can I refill my Klor-Con prescription?

    Klor-Con is only available by prescription, so you will need to see a board-certified doctor to get a refill on your prescription. To get started, book a virtual appointment with one of our top rated board-certified doctors. After a qualifying evaluation, your prescription will be sent to your local pharmacy for pickup.

  • Who should not take Klor-Con?

    Klor-Con is not recommended for people with kidney disease, high levels of potassium in the blood. You should also not take Klor-Con if you are pregnant or breastfeeding.

  • What happens if I miss a dose of Klor-Con?

    If you miss a dose of Klor-con, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take two doses of Klor-Con at the same time.

  • What happens if I take too much Klor-Con?

    If you take too much Klor-Con, you may experience overdose symptoms such as weakness, tiredness, or irregular heartbeat. If you experience these symptoms, call your doctor or the local poison control center right away. Too much Klor-Con may also produce severe hyperkalemia, a condition in which the body has too much potassium, a level which could cause the heart to stop beating.

  • What are the benefits of Klor-Con?

    Potassium ion is an essential mineral in your body and normal potassium ion intake plays a role in normal functioning of muscles, heart, and digestive system. Klor-Con can help replenish the body potassium pool.

    Klor-Con also comes in a convenient potassium chloride tablet, or potassium chloride capsule that can be sprinkled over soft food, or powder form that can be dissolved in water or juice for easier intake helping those with trouble swallowing pills.

  • Is Klor-Con and potassium the same thing?

    Klor-Con is an electrolyte and potassium is a mineral. Potassium chloride (Klor-Con) is the most commonly-prescribed potassium chloride supplementation. While there may be other drugs available, talk to your doctor to get recommendation for the correct potassium supplement for you.

  • What is the drug Klor-Con used for?

    Klor-Con (potassium chloride) is considered an electrolyte, which is a mineral medication used to treat low potassium levels in the blood and works to bring those potassium levels up to normal range.

3 simple steps to request your Klor-Con prescription today 

Step 1

Book a Klor-Con prescription request appointment.

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Step 2

Talk to your medical provider regarding your Klor-Con prescription.

Visit with a doctor on your smartphone or computer.

Step 3

Pick up your Klor-Con prescription.

We can send prescriptions to any local pharmacy.

Klor-Con prescription pricing details

How pricing works

To get a new or refill on your Klor-Con prescription, join our monthly membership and get discounted visits.

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$16.99/month

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Visit price with insurance

Often the same as an office visit. Most patients with in-network insurance pay $30 or less!

  • We accept these insurance plans and many more:

    • Humana
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Paying without insurance

Membership

$16.99/month

First month free

Visits

$129

30 days of free membership

  • Same-day appointments 7 days a week

  • Unlimited messages with your Care Team

  • Prescription discount card to save up to 80%

  • Exclusive discounts on lab tests

  • Free memberships for your family

  • Cancel anytime

Visit price without insurance

Initial visits are $129.

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Klor-Con prescription resources

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