Jext 300mcg Injection


JEXT 300MCG (JEXT 300MCG ADRENALINE TARTRATE)

Jext 300 micrograms Solution for Injection in pre-filled pen

Use in adults over 30 kg in weight:

The usual dose is 300 micrograms.

Larger adults may require more than one injection to reverse the effect of an allergic reaction.

Patients between 15 kg and 30 kg in weight should be prescribed a Jext 150 micrograms.

An initial dose should be administered as soon as symptoms of anaphylaxis are recognised.

The effective dose is typically in the range of 0.005-0.01 mg/kg but higher doses may be necessary in some cases.

In the absence of clinical improvement or if deterioration occurs, a second injection with an additional Jext may be administered 5–15 minutes after the first injection. It is recommended that patients are prescribed two Jext pens which they should carry at all times.

For more information : Patient Information Leaflet

 

 


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JEXT 300 MCG (JEXT 300MCG ADRENALINE TARTRATE)

Use Jext 300 mcg in emergency treatment of severe acute allergic reactions (anaphylaxis) to insect stings or bites, foods, drugs and other allergens as well as idiopathic or exercise induced anaphylaxis.

 

JEXT 300MCG (JEXT 300MCG ADRENALINE TARTRATE)

Jext 300 micrograms Solution for Injection in pre-filled pen

Use in adults over 30 kg in weight:

The usual dose is 300 micrograms.

Larger adults may require more than one injection to reverse the effect of an allergic reaction.

Patients between 15 kg and 30 kg in weight should be prescribed a Jext 150 micrograms.

An initial dose should be administered as soon as symptoms of anaphylaxis are recognised.

The effective dose is typically in the range of 0.005-0.01 mg/kg but higher doses may be necessary in some cases.

In the absence of clinical improvement or if deterioration occurs, a second injection with an additional Jext may be administered 5–15 minutes after the first injection. It is recommended that patients are prescribed two Jext pens which they should carry at all times.

For more information : Patient Information Leaflet

 

 

How to use

For intramuscular use.

For single use.

Jext is for intramuscular administration into the anterolateral thigh.

It is designed to inject through clothing or directly through the skin.

Massage around the injection area is advised to accelerate absorption.

Caution

Do not remove yellow cap until ready for use.

Jext should be administered into the anterolateral thigh. The injection is delivered immediately after the black needle shield of the auto-injector is pressed firmly against the skin or other surface. Patients should be advised not to inject Jext into the gluteus maximus due to the risk of accidental injection into a vein.

The patient should be instructed to dial 999, ask for ambulance, state anaphylaxis to seek emergency medical assistance immediately after administering the first dose in order to have close monitoring of the anaphylactic episode and further treatment as required.

The patient/carer should be informed about the possibility of biphasic anaphylaxis which is characterised by initial resolution followed by recurrence of symptoms some hours later.

Patients with concomitant asthma may be at increased risk of a severe anaphylactic reaction.

Jext contains sodium metabisulphite which may rarely cause severe hypersensitivity reactions including anaphylactic symptoms and bronchospasm in susceptible people, especially those with a history of asthma. Patients with these conditions must be carefully instructed in regard to the circumstances under which Jext should be used.

Due to an increased risk of adverse reactions following administration of adrenaline special caution should be taken in patients with cardiovascular diseases including angina pectoris, obstructive cardiomyopathy, cardiac arrhythmia, cor pulmonale, atherosclerosis and hypertension.

Special caution should also be taken in patients with hyperthyroidism, phaeochromocytoma, narrow angle glaucoma, severe renal impairment, prostatic adenoma leading to residual urine, hypercalcaemia, hypokalaemia and diabetes.

Caution should also be taken in elderly and pregnant patients.

In case of injection performed by a caregiver, the patient should be instructed not to move and immobilisation of the patient’s leg should be ensured during injection to reduce the risk of laceration. The product is for single use only and cannot be reused.

In patients with thick sub-cutaneous fat layer, there is a risk for adrenaline not reaching the muscle tissue resulting in a suboptimal effect.

Peripheral ischaemia following accidental injection into hands or feet may cause loss of blood flow to adjacent areas due to vasoconstriction.

All patients who are prescribed Jext should be thoroughly instructed to understand the indications for the use and the correct method of administration (see section 6.6). It is strongly advised also to educate the patient’s immediate associates (e.g. parents, caregivers, teachers) for the correct usage of the Jext in case support is needed in the emergency situation.

There is often a prolonged period between supply of Jext and an allergic reaction requiring adrenaline. Patients should be advised to regularly check Jext and ensure it is replaced within the expiry period.