Potassium supplements increase the amount of potassium in your body.
Take potassium supplements regularly as directed.
Take the tablets (e.g. Span K®) with food and a glass of water. Swallow the tablets whole.
Dissolve effervescent tablets (e.g. Chlorvescent®) in a glass of water before swallowing. Take with food.
Do not lie down for a few minutes after taking each dose.
Take the missed dose as soon as possible. If it is close to the time for your next dose, skip the missed dose and carry on as normal. Do not take two doses at the same time.
Some medicines available without a prescription may react with potassium supplements including:
Tell your pharmacist or doctor about all medicines or treatments that you may be taking, including vitamins, herbal products or recreational drugs.
|Side Effects||Recommended action|
Change in heartbeat
Black bowel motions
|Tell your doctor immediately|
Difficult or painful swallowing
|Tell your doctor|
Nausea, vomiting, diarrhoea
|Tell your doctor if troublesome|
If you notice any other effects, discuss them with your doctor or pharmacist.
This leaflet contains important, but not all, information about this medicine.
Prepared by the MyMedicines Committee at Christchurch Hospital, Te Whatu Ora - Waitaha, New Zealand. March 2023
For more general information about this sheet and its contents, see: What does a My Medicines sheet cover?
Te Reo Māori information sheets supported by Health Quality and Safety Commission New Zealand
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My Medicines Patient Information Leaflets (PILs) contain important, but not all, information about the medicines they describe.
For more information about the sheets, see: What does a My Medicines sheet cover?
My Medicines is developed by a team at Te Whatu Ora – Waitaha. Our team is made up of doctors, pharmacists, and a non-medical person to help us keep to plain language. We also discuss our information with specialist health professionals or groups when needed