In the UK, it is possible to keep an adrenaline auto-injector (AAI) in a first aid kit, provided that certain conditions are met.

Firstly, the AAI must be prescribed to a specific person, and their name should be clearly labelled on the device. The device should also be stored in a secure and accessible location, and all staff who may need to use it should be trained in how to do so.

It is also important to ensure that the AAI is in date and has not expired. Expiry dates can vary depending on the brand of the device, so it is important to check this regularly and replace the device as necessary.

If an AAI is kept in a first aid kit, it should be clearly labelled as such, so that it is easily identifiable in an emergency. Additionally, the first aid kit should be regularly checked and maintained to ensure that all contents are in date and functioning correctly.

It is also important to note that the administration of an AAI should only be carried out by someone who has been trained in its use, and only in accordance with the relevant guidelines and protocols. If you are unsure about whether you are authorized to use an AAI as a first aider, you should seek guidance from your employer or the relevant regulatory body.