Which benzodiazepine is commonly given rectally for rapid seizure control when IV access is not available?

• A. Diazepam
• B. Lorazepam
• C. Midazolam
• D. Clonazepam

Answer: (A)

When a seizure needs to be stopped quickly and IV access isn’t available, using a benzodiazepine via a noninvasive route is the practical approach. Diazepam is ideal here because it’s highly lipophilic and acts fast in the brain, and it’s available in a rectal gel formulation designed for quick, caregiver-administered use. This rectal option has a long-standing role in rapid seizure control when IV access is not possible, making it a go-to choice for home management or prehospital care.

Other benzodiazepines have important uses, but their common routes and onset don’t fit this scenario as neatly. Lorazepam is excellent IV or IM but doesn’t have a standard rectal product for rapid home use. Midazolam is very effective and often given intranasally or buccally for rapid effect, but rectal administration is not the typical route. Clonazepam is longer-acting and not suited for immediate seizure termination.

So, the rectal diazepam fits the need for fast, accessible seizure control when IV access can’t be secured.