Why We No Longer Prescribe Diazepam for Flying
Benzodiazepines (e.g. Diazepam, Lorazepam, Temazepam, Alprazolam, Clonazepam) have been used since the 1960s to treat conditions such as anxiety, epilepsy, muscle spasms, sleep disorders, alcohol withdrawal, and psychiatric illness. Diazepam (Valium) was once seen as a “wonder drug” — but over time, the serious risks associated with its use became clear.
These include:
- Short-term side effects: poor memory, reduced coordination, slow reaction times
- Long-term risks: addiction, cognitive impairment, withdrawal symptoms (e.g. seizures, hallucinations)
- Potential for misuse and abuse
As a result, benzodiazepines are now strictly controlled in the UK (Diazepam is Class C / Schedule IV) and are not recommended for fear of flying or sleep during travel. Here's why:
Why Diazepam is Not Prescribed for Flight Anxiety
- Not clinically appropriate:
National guidelines (BNF & NICE) state benzodiazepines should not be used for phobias or short-term anxiety. Fear of flying is not considered a generalised anxiety disorder, and prescribing in such cases would be outside of medical guidance. - Impaired safety during emergencies:
Diazepam can reduce awareness and reaction time, potentially putting you and others at risk during an in-flight emergency. - Increased DVT risk:
Sedatives cause unnatural sleep with less movement, increasing the risk of blood clots (DVT) — especially on flights over 4 hours. - Paradoxical reactions:
Some people experience agitation, aggression, or disinhibition, which could result in disruptive or unlawful behaviour on board. - Worsens anxiety long term:
Evidence shows benzodiazepines can prevent natural coping mechanisms, worsening anxiety over time if used repeatedly. - Legal issues abroad:
These medications are illegal in several countries. Travellers may face confiscation, arrest, or difficulty returning with medication. - Employment and insurance implications:
Diazepam stays in the body for days and can trigger a failed drug test. Not declaring its use may also invalidate travel insurance.
Our Policy
We do not prescribe Diazepam or similar sedatives for flight anxiety. This is in line with medical and legal guidance and reflects patient safety concerns.
Flight anxiety is not covered under General Medical Services (NHS GP contract). Patients seeking medication for this purpose are advised to contact a private GP or travel clinic.
Instead, we recommend one of the following aviation-approved courses:
🔗 Flying with Confidence – British Airways
🔗 Flying Without Fear – Virgin Atlantic
For more clinical information:
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