Jext delivers epinephrine (adrenaline), which counteracts the effects of a severe allergic reaction.

• Relaxes airway muscles to improve breathing
• Constricts blood vessels to raise blood pressure
• Reduces swelling, redness, and hives
• Helps stabilise the body during anaphylaxis

Symptoms may improve quickly, but delayed or rebound reactions can occur. Medical observation after use is essential.

• Active ingredient: Epinephrine (adrenaline)
• Pharmaceutical form: Solution for injection in a pre-filled auto-injector
• Administration route: Intramuscular (outer thigh)
• Prescription status: Prescription-only medicine (Rx)

Indications

Jext is indicated for immediate use in individuals at increased risk of anaphylaxis, including those with a history of severe allergic reactions to foods, insect stings, medicines, or other allergens.

Dosage & use

• Strength is selected based on body weight and clinical judgement
• Common strengths include 0.3 mg (often >30 kg) and 0.15 mg (often 15–30 kg)
• Single-use device; dispose safely after use
• A second injector may be required if symptoms persist

Warnings

• Always carry your Jext auto-injector(s) with you
• Ensure people around you know how and when to use it
• Check expiry date and storage conditions regularly
• Possible side effects include palpitations, tremor, anxiety, headache, sweating, nausea, or dizziness

What is Jext used for?
Jext is used for the emergency treatment of severe allergic reactions (anaphylaxis).

Does Jext replace emergency care?
No. Jext is a first-aid treatment only. Emergency medical help must be sought immediately after use.

How fast does Jext work?
Adrenaline usually works within minutes, but symptoms may return.

Can Jext be used through clothing?
Yes. Injection into the outer thigh can usually be given through clothing if necessary.

Is it normal to feel shaky after using Jext?
Yes. Shaking, fast heartbeat, anxiety, or headache are common temporary effects.

Can Jext be used for mild allergies?
No. Jext is intended only for severe allergic reactions (anaphylaxis).