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Diazepam Prescribing for short-term procedures

Dear Patient

Reasons We Do Not Prescribe Diazepam

Safety concerns

Diazepam makes you very drowsy and can slow your breathing. Some people have the opposite effect and become agitated.
Timing problems

Appointments often run late. If you take diazepam too early or too late, it may wear off at the wrong time or be too strong.
Your appointment may be cancelled at the last minute, meaning you would have taken unnecessary medication.


Specialist responsibility

If sedation is needed, it should be arranged by the hospital, dentist, or clinic. They can give the right medicine and monitor you safely.

Side effects and risks

Diazepam can leave you groggy, confused, or unsteady. It can affect memory, driving, and work. It can also cause dependence if used repeatedly.
Prescribing rules

National guidelines (BNF) say diazepam should not be used for phobias (such as claustrophobia) or mild short-term anxiety about procedures.

Page published: 4 February 2026
Last updated: 4 February 2026