Klor-Con / EF Side Effects

Generic name: potassium bicarbonate

Note: This document contains side effect information about potassium bicarbonate. Some of the dosage forms listed on this page may not apply to the brand name Klor-Con / EF.

Some side effects of Klor-Con / EF may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

Applies to potassium bicarbonate: oral tablet effervescent

Get emergency medical help if you have any of these signs of an allergic reaction while taking potassium bicarbonate (the active ingredient contained in Klor-Con / EF) hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using potassium bicarbonate 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 of potassium bicarbonate may include:

• nausea, vomiting, diarrhea, or upset stomach;

• a rash;

• slight tingling in the hands or feet; or

• anxiety.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.

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