Review: could Phenytoin Sodium cause Tinnitus?


Tinnitus is found among people who take Phenytoin Sodium, especially for people who are female, 60+ old , have been taking the drug for 10+ years, also take medication Carbamazepine, and have Post-traumatic stress disorder . We study 2,231 people who have side effects while taking Phenytoin sodium from FDA and social media. Among them, 9 have Tinnitus. Find out below who they are, when they have Tinnitus and more.

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Phenytoin Sodium

Phenytoin sodium has active ingredients of phenytoin sodium. It is often used in convulsion. (latest outcomes from Phenytoin sodium 3,680 users)


Tinnitus (a ringing in the ears) has been reported by people with heart rate increased, rashes, insomnia, memory loss, fatigue (latest reports from 22,026 Tinnitus patients).

On Aug, 29, 2016

2,231 people reported to have side effects when taking Phenytoin Sodium.
Among them, 9 people (0.4%) have Tinnitus

Number of reports submitted per year:

Could Phenytoin sodium cause Tinnitus?

Time on Phenytoin Sodium when people have Tinnitus *:

  • < 1 month: 0.0 %
  • 1 - 6 months: 25 %
  • 6 - 12 months: 25 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 50 %

Gender of people who have Tinnitus when taking Phenytoin Sodium *:

  • female: 55.56 %
  • male: 44.44 %

Age of people who have Tinnitus when taking Phenytoin Sodium *:

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 0.0 %
  • 40-49: 20 %
  • 50-59: 20 %
  • 60+: 60 %

Severity if Tinnitus when taking Phenytoin Sodium **:

  • least: 0.0 %
  • moderate: 100 %
  • severe: 0.0 %
  • most severe: 0.0 %

How people recovered from Tinnitus **:

  • while on drug: 0.0 %
  • after off the drug: 0.0 %
  • not yet: 100 %

Top conditions involved for these people *:

  • Syncope (2 people)
  • Post-Traumatic Stress Disorder (2 people)
  • Insomnia (1 person)
  • Hypertension (1 person)
  • Hypercholesterolaemia (1 person)

Top co-used drugs for these people *:

  • Escitalopram Oxalate (3 people)
  • Carbamazepine (3 people)
  • Phenytoin (2 people)
  • Paroxetine Hcl (2 people)
  • Diazepam (2 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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