Trial of Methoxyflurane With Periprostatic Local Anaesthesia to Reduce the Discomfort of TRUS B

Participants randomised to the experimental arm will inhale methoxyflurane administered through the Penthrox® inhaler starting approximately one minute before insertion of the rectal probe.

Participants randomised to the control arm will inhale 0.9% saline administered through the Penthrox® inhaler starting approximately one minute before insertion of the rectal probe.