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Medications and Drugs

Brand Names: Cytra-K, Poly-Citra K Crystals, Polycitra-K

Generic Name: citric acid and potassium citrate (Pronunciation: SIT rik AS id and poe TASS ee um SIT rayt)

What is citric acid and potassium citrate (Cytra-K, Poly-Citra K Crystals, Polycitra-K)?

Citric acid is an alkalinizing agent that make the urine less acidic.

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

The combination of citric acid and potassium citrate is used to treat or prevent hypokalemia (low levels of potassium in the blood). Citric acid and potassium citrate is also used to treat digitalis overdose.

Citric acid and potassium citrate may also be used for other purposes not listed in this medication guide.

What are the possible side effects of citric acid and potassium citrate (Cytra-K, Poly-Citra K Crystals, Polycitra-K)?

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.

Call your doctor at once if you have any of these serious side effects:

  • severe stomach pain, ongoing diarrhea or vomiting;
  • black, bloody, or tarry stools;
  • coughing up blood;
  • fast, slow, or uneven heart rate;
  • muscle weakness, pain, or twitching;
  • numbness or tingly feeling in your hands or feet, or around your mouth;
  • confusion, anxiety, weakness, mood changes, or feeling irritable;
  • swelling in your ankles or feet; or
  • seizure (convulsions).

Less serious side effects may include:

  • mild nausea, vomiting, or upset stomach;
  • mild or occasional diarrhea; or
  • appearance of a citric acid and potassium citrate tablet in your stool.

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 is the most important information I should know about citric acid and potassium citrate (Cytra-K, Poly-Citra K Crystals, Polycitra-K)?

You should not use this medication if you have kidney failure, a urinary tract infection, uncontrolled diabetes, a peptic ulcer in your stomach, Addison's disease, severe burns or other tissue injury, if you are dehydrated, if you take certain diuretics (water pills), or if you have high levels of potassium in your blood (hyperkalemia).

You should not take citric acid and potassium citrate tablets if you have problems with your esophagus, stomach, or intestines that make it difficult for you to swallow or digest pills.

Avoid lying down for at least 30 minutes after you take this medication.

To be sure this medication is helping your condition, your blood may need to be tested often. Your heart rate may also be checked using an electrocardiograph or ECG (sometimes called an EKG) to measure electrical activity of the heart. This test will help your doctor determine how long to treat you with potassium. Do not miss any scheduled appointments.

Serious side effects of citric acid and potassium citrate include uneven heartbeat, muscle weakness or limp feeling, severe stomach pain, and numbness or tingling in your hands, feet, or around your mouth.

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



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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