Penthrox, also known as methoxyflurane, is a non-opioid inhalational analgesic medication widely used for the relief of moderate to severe pain. It is particularly noted for its use in emergency medicine and pre-hospital settings, such as by paramedics and in sports medicine, due to its rapid onset of action and ease of administration. Penthrox is administered through a hand-held inhaler device, allowing patients to self-administer the medication under supervision, providing effective pain control with minimal side effects. Its portability and efficacy make it a valuable tool in situations where immediate pain relief is essential, and alternative pain management options may be impractical.