Consumer medicine information



Potassium Chloride

Consumer Medicine Information

What is in this leaflet

This leaflet answers some common questions about Sterile Potassium Chloride Concentrate. It does not contain all the available information. It does not take the place of talking to your doctor or pharmacist.

All medicines have benefits and risks. Your doctor has weighed the risks of you being given Potassium Chloride Concentrate against the benefits they expect it to have for you.

This medicine is likely to be used while you are at the clinic or in hospital. If possible, please read this leaflet carefully before this medicine is given to you. In some cases this leaflet may be given to you after the medicine has been used.

If you have any concerns about taking this medicine, ask your doctor or pharmacist.

Keep this leaflet. You may need to read it again.


Potassium chloride increases the potassium levels that are in the blood. Potassium is naturally present in body fluids and is needed for normal body function. Potassium chloride is given to patients who have very low levels of potassium or who are unable to take tablets. It may also be used for the treatment of poisoning by digitalis.

Potassium Chloride Concentrate may be used for the treatment of other conditions that are not mentioned above. Your doctor will be able to tell you about the specific condition for which you have been prescribed potassium chloride.

Ask your doctor if you have any questions about why it has been prescribed for you.

This medicine is available only with a doctor’s prescription.


When Sterile Potassium Chloride Concentrate must not be given

You should not be given this medicine if the packaging is torn or show signs of tampering or if the expiry date on the pack has passed.

You will not be given Potassium Chloride if:

  1. You have or have had:
  • an allergy to potassium chloride
  • high potassium levels in your blood

It may not be safe for you to be given potassium chloride, if you are not sure whether any of these apply to you, check with your doctor.Before treatment with Sterile Potassium Chloride Concentrate

You must tell your doctor if:

  1. you have allergies to:
  • any other medicine
  • any other substances, such as foods, preservatives or dye
  1. you have or have had:
  • abnormal heart beat
  • heart disease
  • adrenal gland problems (e.g. Addison’s disease)
  • severe burns
  • kidney problems
  • dehydration
  • sickle cell anaemia
  • heat cramps
  1. you are pregnant or intend to become pregnant

Your doctor will discuss the possible risks and benefit of being given potassium chloride during pregnancy.

  1. you are breast-feeding or plan to breast feed

Potassium chloride passes into breast milk, however there have been no problems reported in breast fed infants.

  1. Tell your doctor if you are on a low salt diet.

You may require chloride as well as potassium.

Taking other medicines

Tell your doctor if you are taking any other medicines, including any that you get without a prescription from your pharmacy, supermarket or health food shop.

Some medicines may affect the way potassium chloride works. These include:

  • fluid tablets such as triamterene and thiazine
  • heart drugs such as enalapril, captopril and digitalis
  • medicines to relieve inflammation
  • medicines to treat thrombosis such as heparin
  • products containing salt substitutes
  • other medicines that contain potassium
  • insulin
  • antacids like sodium bicarbonate

If you are unsure whether you are taking one of the above drugs, ask your doctor or pharmacist. These medicines may be affected by potassium chloride or may affect how well it works. You may need to take different amounts of your medicine or you may need to take different medicines.

Your doctor and pharmacist may have more information on medicines to be careful with while being given Potassium Chloride and will advise you about continuing to take other medicines.

Your doctor will advise you about continuing to take other medicines


Potassium Chloride Concentrate treatment usually occurs in a hospital. It will be diluted and given to you as a slow injection into one of your veins (this is called an intravenous infusion) by your doctor or a specially trained nurse.

How much is given

Your doctor will decide what dose, how often and how long you will receive it. This depends on your condition and other factors, such as your weight, age, blood tests, how well your kidneys are working, and whether or not other medicines are being given at the same time.

Follow all directions given to you by your doctor and pharmacist carefully.

Follow all directions given to you by your doctor and pharmacist carefully. These directions may differ from the information contained in this leaflet.

Never administer this medicine yourself..

If you are given too much (overdose)

This rarely happens as Potassium Chloride is administered under the care of a highly trained doctor or nurse.

However, if you are given too much potassium chloride you may experience some of the effects listed under “Side Effects” below.

Your doctor has information on how to recognise and treat an overdose. Ask your doctor if you have any concerns.

Side effects

Tell your doctor or nurse as soon as possible if you do not feel well while being given Potassium Chloride Concentrate

Like other medicines, potassium chloride can cause some side effects. If they occur, most are likely to be minor or temporary. However, some may be serious and need medical attention.

Ask your doctor or nurse to answer any questions that may have. Do not be alarmed by this list of possible side effects. You may not experience any of them.

Tell your doctor or nurse immediately if you experience any of the following:

  • tingling in the arms or legs
  • confusion
  • abnormal heart beat
  • muscle weakness
  • peeling skin at the site of injection
  • pain at the injection site

These side effects are serious. You may need urgent medical attention.

Tell your doctor or nurse as soon as possible if you notice any of the following:

  • nausea
  • vomiting
  • diarrhoea
  • stomach pain

These are the more common side effects of potassium chloride. Mostly these are mild and short-lived.

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor. Some side effects may only be seen by your doctor.


Sterile Potassium Chloride Concentrates should be stored below 25°C.

Product description

What it looks like

Sterile Potassium Chloride Concentrates are clear, colourless solutions that are contained in plastic ampoules. They are available in 5 different strengths.

Sterile Potassium Chloride Concentrates can be identified by an Australian Register Number, which is found on the packaging –

AUST R 10793

AUST R 10794

AUST R 10810

AUST R 10811

AUST R 49282


Sterile Potassium Chloride Concentrate contains

  • Potassium chloride
  • Water for Injections.

It does not contain a preservative.

Sponsor in Australia

Pfizer Australia Pty Ltd
Sydney NSW Toll Free Number:
1800 675 229

This leaflet was prepared in May 2020.

Published by MIMS June 2020