Please be aware that GPs at Flitwick Surgery may decline a request for sedatives to be used when flying and may suggest that you explore alternatives. The reasons for this are outlined below.
Sedatives, like diazepam or temazepam, are controlled drugs. This means they are subject to certain restrictions and they should be used only when absolutely necessary. Also, when travelling abroad, it is important to be aware that in some countries they are illegal and possession can lead to imprisonment.
Taking sedatives while flying may make you sleepy and more relaxed but if there is an emergency during the flight they may impair your ability to respond to it and reduce your reaction to the emergency which could be dangerous to you and others. They can also cause deep sleep and not moving around increases the risk of getting a blood clot in the leg (deep vein thrombosis – DVT) or lungs (pulmonary embolus).
Therefore, although sedatives may historically have been prescribed for flying, GPs are increasingly saying no to sedative prescriptions. The evidence increasingly suggests they are unsafe to take while flying. There is also the possibility that they may be illegal in your destination country.
Most airlines do run fear of flying courses and it may be worth investigating those. Many mindfulness apps also have sections dedicated to fear of flying. Alternatively, CBT can be accessed locally here: https://www.elft.nhs.uk/bedfordshire-talking-therapies.