Jext® 150 mcg and Jext® 300 mcg auto-injectors announce extension of expiry dates for selected devices

Since the withdrawal of Emerade Adrenaline Auto-injectors (AAIs) earlier this year, demand for JEXT® AAIs has increased globally.  To support and maintain an overall adequate supply, the MHRA (Medicines and Health Regulatory Authority) has agreed to extend the use of specific lot (batch) numbers of Jext® 150 mcg and Jext® 300 mcg auto-injectors, beyond the labelled expiry date by two months. The affected lot numbers are listed in the table below and are also available on

The extension of this expiry date should not impact the effectiveness of the medicine. However, local pharmacies are able to help with any concerns regarding the device. 

Lot (batch) numbers and labelled expiry dates are marked on the end-flap of the box and on the auto-injector label itself.

Table 1 Affected lots (batches) for extended use of Jext® auto-injectors

No. Strength, mcg Lot (batch) no. Labelled Expiry Date (end of the month) Extended Use by Date (end of the month)
1300K3984Dec 2023Feb 2024
2300K4161Dec 2023Feb 2024
3300K4338Dec 2023Feb 2024
4300K4160Dec 2023Feb 2024
5300K4408Dec 2023Feb 2024
6300K4414Dec 2023Feb 2024
7300K5311Jan 2024Mar 2024
8300K4672Feb 2024Apr 2024
9300K4920Feb 2024Apr 2024
10300K5183Feb 2024Apr 2024
11300K5243Feb 2024Apr 2024
12300K5483Feb 2024Apr 2024
13300K5619Feb 2024Apr 2024
14300K5623Feb 2024Apr 2024
15300K5846Feb 2024Apr 2024
16300K5806Feb 2024Apr 2024
17300K6197Feb 2024Apr 2024
18150K4072Dec 2023Feb 2024
19150K4558Dec 2023Feb 2024
20150K4627Dec 2023Feb 2024
21150K5384Jan 2024Mar 2024
22150K4938Feb 2024Apr 2024
23150K5453Feb 2024Apr 2024

This extended use does not apply to any other lot number of Jext® auto-injectors not specified. Patients must continue to adhere to the labelled expiry date on any Jext® auto-injector not covered by the lot numbers above.

It is recommended that any patients who have a Jext device should check their devices and if they are approaching end of expiry to ensure that the adrenaline within the device has not deteriorated:

  • Check the expiry date against the dates listed above which are approved for extension.
  • If the expiry date has already passed and is not covered by the extension detailed above, contact your doctor or pharmacist, and request a prescription for a new device.
  • If the expiry date has not passed and it is one of the lots approved for an extension, double check that the adrenaline within the pen has not deteriorated. You can do this by following the steps here
  1. Check if your AAI is safe to use through the inspection window on the device.
  2. If the solution is clear/colourless, it is safe to use.
  3. If the solution is discoloured or contains particles, you will need to replace it, even if this occurs before the expiry date. However, do not discard your old AAI until you have a replacement.

If your AAI pen’s adrenaline has deteriorated – even if it is within the existing and the new extended expiry date window – contact your doctor or pharmacist and request a prescription for a new device.

Continue to carry two devices at all times.