Review: could Effexor Xr cause Confusion?


Confusion is found among people who take Effexor Xr, especially for people who are female, 60+ old , have been taking the drug for < 1 month, also take medication Klonopin, and have Depression . We study 23,188 people who have side effects while taking Effexor xr from FDA and social media. Among them, 313 have Confusion. Find out below who they are, when they have Confusion and more.

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Effexor Xr

Effexor xr has active ingredients of venlafaxine hydrochloride. It is often used in depression. (latest outcomes from Effexor xr 23,766 users)


Confusion has been reported by people with nephrogenic systemic fibrosis, pain, abasia, itching, musculoskeletal stiffness (latest reports from 37,846 Confusion patients).

On Aug, 21, 2016

23,188 people reported to have side effects when taking Effexor Xr.
Among them, 313 people (1.35%) have Confusion

Number of reports submitted per year:

Could Effexor xr cause Confusion?

Time on Effexor Xr when people have Confusion *:

  • < 1 month: 43.36 %
  • 1 - 6 months: 15.04 %
  • 6 - 12 months: 11.5 %
  • 1 - 2 years: 7.08 %
  • 2 - 5 years: 13.27 %
  • 5 - 10 years: 7.96 %
  • 10+ years: 1.77 %

Gender of people who have Confusion when taking Effexor Xr *:

  • female: 70.2 %
  • male: 29.8 %

Age of people who have Confusion when taking Effexor Xr *:

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 3.24 %
  • 20-29: 10.12 %
  • 30-39: 14.57 %
  • 40-49: 25.91 %
  • 50-59: 15.79 %
  • 60+: 30.36 %

Severity if Confusion when taking Effexor Xr **:

  • least: 22.22 %
  • moderate: 44.44 %
  • severe: 27.78 %
  • most severe: 5.56 %

How people recovered from Confusion **:

  • while on drug: 20 %
  • after off the drug: 0.0 %
  • not yet: 80 %

Top conditions involved for these people *:

  • Depression (90 people)
  • Anxiety (25 people)
  • Pain (10 people)
  • Insomnia (9 people)
  • Fibromyalgia (7 people)

Top co-used drugs for these people *:

  • Klonopin (17 people)
  • Zoloft (16 people)
  • Effexor (16 people)
  • Nexium (15 people)
  • Neurontin (13 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.

Do you have Confusion when taking Effexor xr?

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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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