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Effervescent Potassium

Generic Name: potassium bicarbonate (poe tass EE um)
Brand Name: Effervescent Potassium, K-Effervescent, K-vescent

Medically reviewed by Drugs.com on Dec 15, 2017 – Written by Cerner Multum

What is Effervescent Potassium?

Potassium is a mineral that is found naturally in foods and is necessary for many normal functions of your body, especially the beating of your heart.

Effervescent Potassium is used to prevent or to treat a potassium deficiency (hypokalemia).

Effervescent Potassium may also be used for other purposes not listed in this medication guide.

Important Information

Avoid taking potassium supplements or using other products that contain potassium without first asking your doctor. Salt substitutes or low-salt dietary products often contain potassium. If you take certain products together you may accidentally get too much potassium. Read the label of any other medicine you are using to see if it contains potassium.

There are many other medicines that can interact with Effervescent Potassium. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor. Keep a list with you of all the medicines you use and show this list to any doctor or other healthcare provider who treats you.

Before taking this medicine

Before taking this medication, tell your doctor if you are allergic to any drugs, or if you have:

If you have any of these conditions, you may not be able to use Effervescent Potassium, or you may need a dose adjustment or special tests during treatment.

FDA pregnancy category C. This medication may be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.

It is not known whether potassium bicarbonate passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

How should I take Effervescent Potassium?

Use this medication exactly as directed on the label, or as prescribed by your doctor. Do not use it in larger amounts or for longer than recommended.

Take each dose with a full glass of water.

Take Effervescent Potassium with food or milk to lessen stomach upset.

Drop the effervescent tablets into a glass of water (at least 4 ounces, or one-half cup). Allow the tablets to dissolve completely and then drink this mixture right away. Do not save it for later use.

Do not stop taking this medication without first talking to your doctor. If you stop taking Effervescent Potassium suddenly, your condition may become worse.

Store Effervescent Potassium at room temperature away from moisture and heat.

What happens if I miss a dose?

Take the missed dose as soon as you remember. If you are more than 2 hours late in taking your medicine, skip the missed dose and wait until your next regularly scheduled dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention if you think you have used too much of Effervescent Potassium.

Overdose symptoms may include numbness or tingling in your hands or feet, uneven heart rate, paralysis, feeling like you might pass out, chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling, or seizure (convulsions).

What should I avoid while taking Effervescent Potassium?

Avoid taking potassium supplements or using other products that contain potassium without first asking your doctor. Salt substitutes or low-salt dietary products often contain potassium. If you take certain products together you may accidentally get too much potassium. Read the label of any other medicine you are using to see if it contains potassium.

Effervescent Potassium 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 Effervescent Potassium and call your doctor at once if you have any of these serious side effects:

  • confusion;

  • uneven heartbeat;

  • unusual tiredness, weakness, heavy feeling in your legs;

  • severe stomach pain cramping; or

  • black, bloody, or tarry stools.

Less serious side effects may include:

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect Effervescent Potassium?

The following drugs can interact with Effervescent Potassium. Tell your doctor if you are using any of these:

This list is not complete and there may be other drugs that can interact with Effervescent Potassium or affect your condition. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.

Further information

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

More about Effervescent Potassium (potassium bicarbonate)

Consumer resources

Other brands: K-Effervescent, K-vescent, Quick-K

Professional resources

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