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A low level of the electrolyte potassium in the blood. Potassium helps carry electrical signals to cells in your body. It is needed for healthy function of nerve and muscles cells, especially those in the heart.

See a healthcare professional immediately if there is:

• An irregular heart rhythm.
• Low blood pressure.

Make an appointment to see a healthcare professional if there are signs of:

• Fatigue or weakness.
• Muscle cramps.
• Constipation.