1. Why am I being treated with DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection?

DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection contains the active ingredients monobasic potassium phosphate and dibasic potassium phosphate. It is a mixture of simple phosphate salts used to quickly increase the amount of phosphate in your body. For more information, see Section 1. Why am I being treated with DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection? in the full CMI.

2. What should I know before treatment with DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection?

Do not use if you have ever had an allergic reaction to monobasic potassium phosphate or dibasic potassium phosphate or any of the ingredients listed at the end of the CMI. Talk to your doctor if you have any other medical conditions, take any other medicines, or are pregnant or plan to become pregnant or are breastfeeding. For more information, see Section 2. What should I know before treatment with DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection? in the full CMI.

3. What if I am taking other medicines?

Some medicines may interfere with DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection and affect how it works. A list of these medicines is in Section 3. What if I am taking other medicines? in the full CMI.

4. How is DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection given?

• This medicine is given as a slow injection into a vein. It must only be given by a doctor or nurse.
• Your doctor will decide what dose you will receive and for how long you will need it. This depends on your medical condition and other factors, such as your weight.

More instructions can be found in Section 4. How is DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection given? in the full CMI.

5. What should I know during treatment with DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection?

For more information, see Section 5. What should I know during treatment with DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection? in the full CMI.

6. Are there any side effects?

Side effects include: swelling in the feet or lower legs, weight gain. Serious side effects include: increased thirst, muscle weakness, irregular heart beat, unexplained anxiety, weakness or heaviness in the hands or feet, tiredness or confusion, convulsions (fits) or muscle cramps, numbness or pain, breathing difficulties, tingling, prickling or burning sensations.
For more information, including what to do if you have any side effects, see Section 6. Are there any side effects? in the full CMI.

DBL™ Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection

Active ingredient(s): monobasic potassium phosphate, dibasic potassium phosphate

Consumer Medicine Information (CMI)

This leaflet provides important information about DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection. You should also speak to your doctor or pharmacist if you would like further information or if you have any concerns or questions about being treated with DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection.

Where to find information in this leaflet:

1. Why am I being treated with DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection?

DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection contains the active ingredients monobasic potassium phosphate and dibasic potassium phosphate. It is a mixture of phosphate salts used to quickly increase the amount of phosphate in your body due to lower than normal levels of phosphate in your blood.

This medicine works by providing a source of phosphate for your body to use.

Your doctor may have prescribed this medicine for another reason.

Ask your doctor if you have any questions about why DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection has been prescribed for you.

2. What should I know before treatment with DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection?

Warnings

Do not use DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection if you:

• are allergic to monobasic potassium phosphate or dibasic potassium phosphate or any of the ingredients listed at the end of this leaflet. Symptoms of an allergic reaction may include:
  • shortness of breath, wheezing or difficulty breathing
  • swelling of the face, lips, tongue or other parts of the body
  • rash, itching or hives on the skin.
• have any of the following medical conditions
  • kidney disease
  • Addison's disease
  • high blood levels of potassium or phosphate
  • low blood levels of calcium.

Check with your doctor if you:

• have or have had any other medical conditions including:
  • kidney disease
  • pancreatic disease
  • parathyroid problems
  • muscle disease
  • rickets
  • electrolyte disturbances.
• take any medicines for any other condition.

During treatment, you may be at risk of developing certain side effects. It is important you understand these risks and how to monitor for them. See additional information under Section 6. Are there any side effects?

Pregnancy and breastfeeding

Check with your doctor if you are pregnant or intend to become pregnant.

Your doctor will discuss the risks and benefits of using this medicine during pregnancy.

Talk to your doctor if you are breastfeeding or intend to breastfeed.

Your doctor will discuss the risks and benefits of using this medicine during breastfeeding.

3. What if I am taking other medicines?

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

Some medicines may interfere with DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection and affect how it works. These include:

• ACE inhibitors, medicines used to treat high blood pressure and some other heart conditions
• medicines containing calcium, potassium or phosphate
• cardiac glycosides such as digitalis
• salicylates
• non-steroidal anti-inflammatory drugs.

These medicines may be affected by DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection or may affect how well it works. You may need different amounts of our medicine, or you may need to take different medicines.

Your doctor or pharmacist has more information on medicines to be careful with or avoid while being given this medicine.

Check with your doctor or pharmacist if you are not sure about what medicines, vitamins or supplements you are taking and if these affect DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection.

4. How is DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection given?

How is it given

• This medicine is given as a slow injection into a vein.
• It must only be given by a doctor or nurse.

How much is given

• Your doctor will decide what dose you will receive and for how long you will need it. This depends on your medical condition and other factors, such as your weight.

If too much is given (overdose)

As this medicine is given to you under the supervision of your doctor, it is very unlikely that you will receive too much.

If you think that you have been given too much DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection and you experience severe side effects, you may need urgent medical attention.

Symptoms of phosphate overdose include the side effects under Section 6. Are there any side effects? but are usually of a more severe nature.

You should immediately:

• phone the Poisons Information Centre
  (by calling 13 11 26), or
• contact your doctor, or
• go to the Emergency Department at your nearest hospital.

You should do this even if there are no signs of discomfort or poisoning.

5. What should I know during treatment with DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection?

Things you should do

• Tell any other doctors, dentists and pharmacists who treat you that you are being given DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection.
• If you are going to have surgery, tell the surgeon or anaesthetist that you are being given this medicine. It may affect other medicines used during surgery.
• If you are about to have any blood tests, tell your doctor that you are being given this medicine. It may interfere with the results of some tests.

Driving or using machines

Be careful before you drive or use any machines or tools until you know how DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection affects you.

Looking after your medicine

• DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection will be stored in the pharmacy or on the ward.
• Keep in a cool, dry place, where the temperature stays below 25°C.
• Do not use this medicine after the expiry date.

Keep it where young children cannot reach it.

Getting rid of any unwanted medicine

DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection will be disposed of by a nurse or pharmacist.

6. Are there any side effects?

All medicines can have side effects. If you do experience any side effects, most of them are minor and temporary. However, some side effects may need medical attention.

See the information below and, if you need to, ask your doctor or pharmacist if you have any further questions about side effects.

Common side effects

Serious side effects

Tell your doctor or pharmacist if you notice anything else that may be making you feel unwell.

Do not be alarmed by this list of possible side effects. You may not experience any of them. Other side effects not listed here may occur in some people.

Reporting side effects

After you have received medical advice for any side effects you experience, you can report side effects to the Therapeutic Goods Administration online at www.tga.gov.au/reporting-problems. By reporting side effects, you can help provide more information on the safety of this medicine.

Always make sure you speak to your doctor or pharmacist before you decide to stop taking any of your medicines.

7. Product details

What DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection contains

Do not take this medicine if you are allergic to any of these ingredients.

DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection does not contain gluten, lactose, sucrose, tartrazine or any other azo dyes.

What DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection looks like

DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection is a clear, colourless solution.

It is available in the following pack size:

• 10 ampoules x 10 mL (AUST R 16268)

Each 10 mL ampoule contains:

• monobasic potassium phosphate (540 milligrams)
• dibasic potassium phosphate (1.83 grams)
• water for injection.

Who distributes DBL Potassium Dihydrogen Phosphate and Dipotassium Hydrogen Phosphate Concentrated Injection

Pfizer Australia Pty Ltd

Sydney NSW

Toll Free Number: 1800 675 229

www.pfizer.com.au

This leaflet was prepared in September 2023.