Fear of Flying: Why We Do Not Prescribe Diazepam (and Similar Medications)

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We are sometimes asked to prescribe diazepam or similar medications—such as lorazepam, temazepam, or clonazepam—to help manage fear of flying or to aid sleep during flights. However, current medical guidance advises against prescribing these drugs for these purposes, and here’s why:

1. Safety Risks During a Flight

While in-flight emergencies are rare, medications like diazepam can impair alertness and slow your reaction time. This can reduce your ability to respond quickly in an emergency, potentially putting your safety and the safety of others at risk.

2. Increased Risk of Blood Clots (DVT)

These medications can induce unnaturally deep sleep, reducing natural movement during a flight. This increases the risk of deep vein thrombosis (DVT)—a serious and potentially fatal condition, particularly on long-haul flights over four hours.

3. Side Effects and Dependence

Drugs like diazepam can cause short-term problems such as poor coordination, memory issues, drowsiness, and slower reaction times. Long-term use can lead to dependence and withdrawal symptoms such as seizures, confusion, hallucinations, and agitation. These medications are also prone to misuse and abuse.

4. Not Suitable for Mild Anxiety

UK prescribing guidelines state that benzodiazepines (like diazepam) should not be used for short-term or mild anxiety, including isolated fear of flying. They are only appropriate in cases of severe, generalised anxiety crisis—and someone experiencing such a crisis is unlikely to be fit to fly.

5. Potential for Agitation and Aggression

In some cases, these drugs can cause paradoxical effects, such as agitation or aggressive behaviour—similar to the effects of alcohol. This can be disruptive on a flight and may lead to serious legal consequences.

6. Long-Term Anxiety Worsening

There’s evidence that these medications can interfere with the natural process of overcoming anxiety, potentially making fear of flying worse over time when used repeatedly.

7. Legal and Travel Risks

Diazepam and similar medications are controlled substances and are illegal in some countries. You may face confiscation or legal action if found carrying them abroad. They also remain in your system for some time and may lead to failed drug tests if required for your job or sport.

Additionally, if you don’t declare these medications to your travel insurer, it may invalidate any claims you make.

What You Can Do Instead

We understand that fear of flying is very real, and there are safer and more effective ways to manage it. We recommend exploring one of the following aviation industry-approved courses designed to help you overcome flight anxiety:

Fly And Be Calm™

  • Instant audio download including instructions, a fear-removal tool, and hypnotic tracks.
  • Comes with a money-back guarantee (excluding app versions).
  • Website: https://flyandbecalm.co.uk

Airline-Supported Courses