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Alfentanil (Molecule of the Month for July 2007)


Alfentanil (trade name) is a parenteral short-acting synthetic opioid analgesic drug, used for anaesthesia in surgery. Alfentanil was discovered at Janssen Pharmaceutica in 1976.

Alfentanil is useful for: short operative analgesia, e.g. outpatient and day surger; enhancement of general anaesthesia; suppression of spontaneous respiration in patients on assisted ventilation; cardiovascular surgery; it disrupts this system relatively little.

The key side effect is that of severe respiratory depression.

Formal Chemical Name (IUPAC)



Picture of Alfentanil 3D model

click on the picture of  Alfentanil above to interact
with the 3D model of the
Alfentanil structure
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Picture of Alfentanil

C21 H32 N6 O3

Update by Karl Harrison
(Molecule of the Month for July 2007 )

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