Penthrox

What is Penthrox?

Penthrox (methoxyflurane), is a non-narcotic inhalational analgesic for pain relief. It’s to be used by a conscious, haemodynamic, stable patient via a hand-held Penthrox Inhaler commonly known as the Green Whistle. The analgesic must be taken under the supervision of a trained professional. Penthrox is a anti-inflammatory drug alternative to morphine. The liquid is clear, almost colourless with a fruity smell. When used with the Penthrox Inhaler, the liquid turns into a gas or vapour.

How to use the Green Whistle (Penthrox)

Penthrox (methoxyflurane) is a fast, short-term analgesia for:

  • Managing acute traumatic pain
  • To relieve pain from procedures

Never take the analgesic unless under the supervision of a trained professional. Before taking the Green Whistle, tell your healthcare professional if you have allergies or are using any of the following:

  • Any medicines
  • Any foods, preservatives or dyes
  • If you are or are intending to become pregnant
  • Are breastfeeding or intend to breastfeed
  • If you have any medical conditions
  • Not to be used by patients with a renal impairment.

Penthrox should only ever be taken under the supervision of an experienced supervisor. You’ll be able to take Penthrox under supervision once the doctor has given the all clear. Here’s what you need to know about using Penthrox.

How much Penthrox to take

One bottle of Penthrox (1.5 mL or 3 mL) is to be used initially.

Penthrox can damage the kidney when taken at high doses. Do not exceed 6 mL in a day or 15 mL in a week, and do not use for two or more days in a row.

How long does Penthrox last?

Generally, the patient will feel pain relief after 6–8 breaths (or 3 mL) of Penthrox. The pain will subside for up to 25 minutes after treatment has stopped. In certain circumstances, a second 3 mL dose may be required. Taking a second dose will relieve pain for up to an hour.

Side effects and precautions

Seek medical attention if you or a patient overdoses on Penthrox. High doses can result in high output renal failure.

Penthrox may cause drowsiness, headaches, coughing euphoria, restlessness, nausea or vomiting. Other side effects include increased serum uric acid hepatitis, increased liver enzymes, urea nitrogen and creatinine, blurred vision, diplopia and nystagmus.

Signs of overdose: drowsiness, muscle relaxation or a pale appearance. Seek medical attention if you see signs a patient overdosed on treatment.

Penthrox Instruction Manuals

Read the following instruction manuals for more information about taking Penthrox (the Green Whistle).

Penthrox Product Information

This document outlines a detailed summary of the characteristics and properties of Penthrox (the Green Whistle)

Download PDF here.

Penthrox Consumer Medicine Information

Read this document for detailed responses to some of the most commonly asked questions about Penthrox (the Green Whistle).

Download PDF here.

Frequently Asked Questions

Why do I need to 'apply' if I want to order Penthrox?

Penthrox (the Green Whistle) is a Schedule 4 Australian drug in Australia. This means, the product can’t be supplied without the relevant documentation.

Once the required documents are verified with the relevant governing bodies, we are able to supply Penthrox (the Green Whistler).

What is Penthrox used for?

Penthrox, the Green Whistle or Methoxyflurane is a medicine used to reduce severity the pain for a short amount of time (usually 20 minutes to a hour, depending on the dosage). It is inhaled through a custom-built Penthrox Inhaler, also known as the Green Whistle.

What documentation and certifications do I need to be supplied with Penthrox?

All first time applications will require a Requisition on a Company Letterhead, with details matching the applicable documentation as well as:

Medical Practitioner — Medical Practitioner Certificate

General First Aid — Occupational first aid certificate approved by work authority cover & Letter from the employer confirming a need to carry Penthrox in the organisation. In addition, the first aid officer would need to complete the Provide Pain Management course.

How to store Penthrox

Keep Penthrox in a cool, dry place and use in climates under 40°C.

How is Penthrox supplied?

There are three options:

  • A 3mL sealed bottle. The bottle contains a tear off tamper evident seal and comes in a pack of 10.
  • A single combination pack containing one 3mL sealed bottle and a Penthrox Inhaler. Quantity of 10 per box.
  • A single combination pack with one 3mL sealed bottle, one Penthrox Inhaler & activated carbon chamber.

How is Penthrox (methoxyflurane) administered?

A healthcare professional pours the Penthrox into the base of the Green Whistle (the inhaler) and the solution absorbs into the wick.

The patient uses the Green Whistle to inhale Penthrox or with the assistance of a facemask.

Penthrox Products

Mega Medical sells various Penthrox bundles.

Please note, in accordance with the NSW Ministry of Health’s regulations, Penthrox products will only be sent through a courier directly to the licensed site.

For new clients, ensure you have completed the Penthrox Online Application Form before finalising your order.

Existing Penthrox clients will have application documentation finalised before dispatch.

Penthrox 3ml Vial Pack of 10

Penthrox 3ml Vial Pack of 10

What’s included:

  • 10 x 3ml Penthrox (methoxyflurane)
  • Does not include inhalers (green whistle)

Penthrox Single Combo

Penthrox Single Combo

What’s included:

  • 1x 3ml Penthrox (methoxyflurane)
  • 1x Penthrox Inhaler

Penthrox Single Combo with Chamber

Penthrox Single Combo with Chamber

What’s included:

  • 1x 3ml Penthrox (methoxyflurane)
  • 1x Penthrox Inhaler
  • 1x AC Chamber

For more information about Penthrox give Mega a call today on 1300 881 824 or 02 9944 0511.