Consumer medicine information


Consumer Medicine Information

What is in this leaflet

This leaflet answers some common questions about MIDAZOLAM MYX. It does not contain all the available information.

It does not take the place of talking to your doctor or pharmacist.

All medicines have risks and benefits. Your doctor has weighed the risks of you using MIDAZOLAM MYX against the benefits they expect it will have for you.

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

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

What MIDAZOLAM MYX is used for

MIDAZOLAM MYX may be injected as a sedative during some short medical procedures.

MIDAZOLAM MYX may be given to you by injection before an operation to produce sleepiness or drowsiness and to relieve anxiety.

If you are in an intensive care unit, you may receive an infusion of MIDAZOLAM MYX over several hours or days as a sedative.

MIDAZOLAM MYX belongs to a group of medicines called benzodiazepines. They are thought to work by their action on brain chemicals.

MIDAZOLAM MYX can cause sedation, hypnosis, amnesia and/or anaesthesia, depending on the dose.

Your doctor, however, may have prescribed MIDAZOLAM MYX for another purpose.

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

MIDAZOLAM MYX is only given by a doctor trained to use this medicine.

If you will be receiving MIDAZOLAM MYX during surgery, your doctor will give you the medicine and closely follow your progress.

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

Before you receive MIDAZOLAM MYX

Do not use MIDAZOLAM MYX if

  • you have had an allergic reaction to MIDAZOLAM MYX, any other benzodiazepine medicine, or any of the ingredients listed at the end of this leaflet
  • you have severe muscle weakness, also known as myasthenia gravis
  • you have a condition called acute narrow angle glaucoma
  • you are suffering from shock, coma or acute alcoholic intoxication

If you are not sure whether you should be given MIDAZOLAM MYX, talk to your doctor.

Do not give MIDAZOLAM MYX to children. The safety or effectiveness of MIDAZOLAM MYX in children less than eight years of age has not been established.

Before you receive it

Your doctor must know about all the following before you receive MIDAZOLAM MYX.

  1. if you are pregnant or plan to become pregnant
    It is not known whether MIDAZOLAM MYX is harmful to an unborn baby when given to a pregnant woman. If there is a need to use MIDAZOLAM MYX when you are pregnant, your doctor will discuss the risks and benefits to you and the unborn baby.
  2. if you are breastfeeding or plan to breastfeed
    MIDAZOLAM MYX may pass into the breast milk and cause drowsiness and/or feeding difficulties in the baby. MIDAZOLAM MYX is not recommended for use while breastfeeding.
  3. if you have any other health problems including:
    – liver, kidney, heart or lung disease
    – high or low blood pressure
    – mental disorders including; depression, psychosis or schizophrenia
    – epilepsy (fits or convulsions)
  4. if you drink alcohol regularly
    Be careful when drinking alcohol before receiving MIDAZOLAM MYX. Combining MIDAZOLAM MYX and alcohol can make you more sleepy, dizzy or lightheaded. Your doctor may suggest that you avoid alcohol for at least 12 hours before you receive MIDAZOLAM MYX.
  5. if you are allergic to any other medicines, foods, dyes or preservatives.

Taking other medicines

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

Some medicines and MIDAZOLAM MYX may interfere with each other. These medicines include:

  • other sleeping tablets, sedatives or tranquillisers
  • anaesthetics
  • medicines for depression
  • medicines to control fits e.g. sodium valproate
  • medicines for allergies or colds e.g. antihistamines
  • pain relievers
  • muscle relaxants
  • cimetidine (Tagamet®, Magicul®), a medicine used to treat ulcers
  • disulfiram (Antabuse®), a medicine used in alcohol abuse
  • erythromycin, a common antibiotic
  • diltiazem (Cardizem®)
  • verapamil (Isoptin®, Anpec®, Cordilox®, Veracaps®)
  • ketoconazole, fluconazole and itraconazole
  • ritonavir and saquinavir

These medicines may be affected by MIDAZOLAM MYX or may affect how well MIDAZOLAM MYX works. Your doctor or pharmacist can tell you what to do if you are taking any of these medicines. They also know of other medicines to be careful with or avoid while using MIDAZOLAM MYX.

If you have not told your doctor about any of the above, tell them before you receive MIDAZOLAM MYX.

How MIDAZOLAM MYX is given

MIDAZOLAM MYX may be given to you as an injection into a vein or muscle. It may also be given through an infusion set in an intensive care unit. Other medications may also be given at the same time.

Your doctor will adjust the dose necessary for you. This depends on which medical procedure you will be having, your age, weight and your general health. Elderly patients may need to receive less.

For how long MIDAZOLAM MYX is given

MIDAZOLAM MYX may be given once before a medical procedure, or continuously by infusion for patients in an intensive care unit. MIDAZOLAM MYX will be stopped once there is no further need for sedation.

If you have been given too much (overdose)

If you have received too much MIDAZOLAM MYX, you may feel drowsy, tired, confused, dizzy, feel weak or become unconscious.

While you are taking MIDAZOLAM MYX

Things you must do

Do not take any other medicines whether they require a prescription or not without first telling your doctor.

Tell your doctor if you feel MIDAZOLAM MYX is not helping you.

Things you must not do

Do not drive or operate machinery until you know how MIDAZOLAM MYX affects you. MIDAZOLAM MYX may cause drowsiness or dizziness in some people and therefore may affect alertness. Make sure you know how you react to MIDAZOLAM MYX before you drive a car or operate machinery, or do anything else that could be dangerous if you are drowsy, dizzy or not alert.

Do not have any alcohol for at least 12 hours after you have been given MIDAZOLAM MYX.

Things to be careful of

Be careful if you are elderly, unwell or taking other medicines. Some people may experience side effects such as drowsiness, confusion, dizziness and unsteadiness, which may increase the risk of a fall.

Side effects

Tell your doctor or pharmacist as soon as possible if you do not feel well after you have received MIDAZOLAM MYX. In addition to the beneficial effects of MIDAZOLAM MYX it is possible that unwanted effects will occur during treatment, even when it is used as intended. All medicines can have side effects. Sometimes they are serious, most of the time they are not. You may need medical treatment if you get some of the side effects.

All medical procedures which involve the use of an anaesthetic have a very small risk which your doctor will discuss with you.

In elderly, or high risk patients, death has resulted rarely due to a slowdown of the heart and lungs.

Tell your doctor if you notice any of the following and they worry you:

  • drowsiness, tiredness
  • dizziness, unsteadiness
  • loss of memory, inattentiveness, confusion, lack of concentration
  • headache, hangover feeling in the morning
  • slurred speech
  • unpleasant dreams
  • blurred vision
  • pain, redness or hardness at the injection site
  • muscle stiffness or inflammation of the vein
  • coughing, hiccups
  • feeling sick with or without vomiting

Tell your doctor immediately or go to casualty at your nearest hospital if you notice any of the following:

  • difficulty breathing
  • changes in pulse rate and blood pressure
  • sudden anxiety or excitation
  • hallucinations or delusions
  • severe sleep disturbances

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

This is not a complete list of all possible side effects. Others may occur in some people and there may be some side effects not yet known.

Tell your doctor if you notice anything else that is making you feel unwell, even if it is not on this list.

Ask your doctor or pharmacist if you do not understand anything in this list.

Do not be alarmed by this list of possible side effects. You may not experience any of them.

After taking MIDAZOLAM MYX


Stored below 25°C. Protect from light.

Product description

What MIDAZOLAM MYX looks like

MIDAZOLAM MYX is a clear, colourless to pale yellow, isotonic solution in clear glass ampoules (type I).


Active ingredient – midazolam
MIDAZOLAM MYX injection contains, Midazolam 1 mg/mL or 5 mg/mL.

Inactive ingredients

  • sodium chloride
  • hydrochloric acid, concentrated
  • sodium hydroxide
  • water for injection.

Please check with your pharmacist for the latest Consumer Medicine Information.

Australian Register Numbers

  • AUST R 207239,
    MIDAZOLAM MYX Injection, 5 mg /5 mL (sterile) Glass Ampoule (10 ampoule packs).
  • AUST R 207241,
    MIDAZOLAM MYX Injection, 5 mg /1 mL (sterile) Glass Ampoule (10 ampoule packs).
  • AUST R 207245,
    MIDAZOLAM MYX Injection, 15 mg /3 mL (sterile) Glass Ampoule (10 ampoule packs).
  • AUST R 207225,
    MIDAZOLAM MYX Injection, 50 mg /10 mL (sterile) Glass Ampoule (10 ampoule packs).

Name and Address of the Sponsor

Mayne Pharma International Pty Ltd
1538 Main North Road
Salisbury South SA 5106

Date of preparation

This leaflet was prepared in July 2014.

Published by MIMS March 2015