Citation styles for Fentanyl

APA style

Fentanyl. (2017, April 15). DrugFacts, . Retrieved 11:13, December 5, 2025 from https://drugfacts.org.uk/index.php?title=Fentanyl&oldid=410.

MLA style

"Fentanyl." DrugFacts, . 15 Apr 2017, 21:01 UTC. 5 Dec 2025, 11:13 <https://drugfacts.org.uk/index.php?title=Fentanyl&oldid=410>.

MHRA style

DrugFacts contributors, 'Fentanyl', DrugFacts, , 15 April 2017, 21:01 UTC, <https://drugfacts.org.uk/index.php?title=Fentanyl&oldid=410> [accessed 5 December 2025]

Chicago style

DrugFacts contributors, "Fentanyl," DrugFacts, , https://drugfacts.org.uk/index.php?title=Fentanyl&oldid=410 (accessed December 5, 2025).

CBE/CSE style

DrugFacts contributors. Fentanyl [Internet]. DrugFacts, ; 2017 Apr 15, 21:01 UTC [cited 2025 Dec 5]. Available from: https://drugfacts.org.uk/index.php?title=Fentanyl&oldid=410.

Bluebook style

Fentanyl, https://drugfacts.org.uk/index.php?title=Fentanyl&oldid=410 (last visited December 5, 2025).

BibTeX entry

 @misc{ wiki:xxx,
   author = "DrugFacts",
   title = "Fentanyl --- DrugFacts{,} ",
   year = "2017",
   url = "https://drugfacts.org.uk/index.php?title=Fentanyl&oldid=410",
   note = "[Online; accessed 5-December-2025]"
 }

When using the LaTeX package url (\usepackage{url} somewhere in the preamble) which tends to give much more nicely formatted web addresses, the following may be preferred:

 @misc{ wiki:xxx,
   author = "DrugFacts",
   title = "Fentanyl --- DrugFacts{,} ",
   year = "2017",
   url = "\url{https://drugfacts.org.uk/index.php?title=Fentanyl&oldid=410}",
   note = "[Online; accessed 5-December-2025]"
 }