Review: could Fentanyl cause Hallucination?


Hallucination is found among people who take Fentanyl, especially for people who are male, 60+ old , have been taking the drug for < 1 month, also take medication Lyrica, and have Pain . We study 30,725 people who have side effects while taking Fentanyl from FDA and social media. Among them, 272 have Hallucination. Find out below who they are, when they have Hallucination and more.

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Fentanyl has active ingredients of fentanyl citrate. It is often used in pain. (latest outcomes from Fentanyl 36,850 users)


Hallucination (an experience involving the perception of something not present) has been reported by people with type 2 diabetes, death, agitation, drowsiness, insomnia (latest reports from 27,903 Hallucination patients).

On Aug, 24, 2016

30,725 people reported to have side effects when taking Fentanyl.
Among them, 272 people (0.89%) have Hallucination

Number of reports submitted per year:

Could Fentanyl cause Hallucination?

Time on Fentanyl when people have Hallucination *:

  • < 1 month: 70.73 %
  • 1 - 6 months: 21.95 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 4.88 %
  • 5 - 10 years: 2.44 %
  • 10+ years: 0.0 %

Gender of people who have Hallucination when taking Fentanyl *:

  • female: 48.12 %
  • male: 51.88 %

Age of people who have Hallucination when taking Fentanyl *:

  • 0-1: 0.0 %
  • 2-9: 0.44 %
  • 10-19: 1.78 %
  • 20-29: 3.56 %
  • 30-39: 2.67 %
  • 40-49: 11.11 %
  • 50-59: 25.78 %
  • 60+: 54.67 %

Top conditions involved for these people *:

  • Pain (92 people)
  • Multiple Myeloma (35 people)
  • Cancer Pain (20 people)
  • Hypertension (18 people)
  • Depression (17 people)

Top co-used drugs for these people *:

  • Lyrica (60 people)
  • Aredia (56 people)
  • Zometa (54 people)
  • Aspirin (45 people)
  • Furosemide (42 people)

* Approximation only. Some reports may have incomplete information.

** Reports from social media are used.

How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.

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NOTE: The study is based on active ingredients and brand name. Other drugs that have the same active ingredients (e.g. generic drugs) are NOT considered.

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