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What is Sufentanil and explain in detail?
Sufentanil, sold under the brand names Dsuvia and Sufenta, is a synthetic opioid analgesic drug approximately 5 to 10 times as potent as its parent drug, fentanyl, and 500 times as potent as morphine.  Structurally, sufentanil differs from fentanyl through the addition of a methoxymethyl group on the piperidine ring (which increases potency but is believed to reduce duration of action), and the replacement of the phenyl ring by thiophene. Sufentanil first was synthesized at Janssen Pharmaceutica in 1974.Sufentanil is marketed for use by specialist centers under different trade names, such as Sufenta and Sufentil. Sufentanil with and without lidocaine or mepivacaine is available as a transdermal patch similar to Duragesic in Europe under trade names such as Chronogesic. It is available as a sublingual tablet under the trade name Dsuvia.

Medical uses
The main use of this medication is in operating suites and critical care where pain relief is required for a short period of time. It also offers properties of sedation and this makes it a good analgesic component of anesthetic regimen during an operation.Because of its extremely high potency, it is often used in surgery and post-operative pain management for patients that are heavily opioid dependent/opioid tolerant because of long term opiate use for chronic pain or illicit opiate use.  Currently sufentanil is the most potent opioid painkiller available for use in humans.  Although more potent narcotic pain medications do exist, all medications stronger than sufentanil are approved for veterinary use only.  It is also used in surgery and post operative pain control in patients that are taking high dose buprenorphine for chronic pain because it is the only opioid that has a potency and binding affinity strong enough to displace buprenorphine from the opioid receptors in the central nervous system and provide analgesia.In 2018, the Food and Drug Administration (FDA) approved Dsuvia, a sublingual tablet form of the drug, that was developed in a collaboration between AcelRx Pharmaceuticals and the United States Department of Defense for use in battlefield settings where intravenous (IV) treatments may not be readily available