Do Benzodiazepines Cause Miosis?

There is a close relationship between arousal and pupil diameter, decrease in the level of arousal being accompanied by constriction of the pupil (miosis), probably reflecting the attenuation of sympathetic outflow as sedation sets in. Paradoxically, sedation induced by benzodiazepines is not accompanied by miosis.

What drugs can cause miosis?

Some of the commonly used drugs and chemicals that can cause miosis are opioids, including:
  • fentanyl.
  • oxycodone (Oxycontin)
  • codeine.
  • heroin.
  • morphine.
  • methadone.

Do benzodiazepines affect pupils?

Benzodiazepines: Like alcohol, at recreational doses, these medications can cause altered, double or blurry vision. Dilated pupils are a sign of an overdose.

Alexander Ross

Alexander Ross

Gaming, Esports & Interactive Media Writer

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.