Zovirax and Influenza - from FDA reports

Influenza is found among people who take Zovirax, especially for people who are female, 60+ old , have been taking the drug for < 1 month, also take medication Famotidine, and have Multiple myeloma. This review analyzes which people have Influenza with Zovirax. It is created by eHealthMe based on reports of 8,377 people who have side effects when taking Zovirax from FDA , and is updated regularly.

On May, 16, 2018

8,377 people reported to have side effects when taking Zovirax.
Among them, 20 people (0.24%) have Influenza

Number of reports submitted per year:

Could Zovirax cause Influenza?

Time on Zovirax when people have Influenza *:

  • < 1 month: 100 %
  • 1 - 6 months: 0.0 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 0.0 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

Gender of people who have Influenza when taking Zovirax *:

  • female: 60 %
  • male: 40 %

Age of people who have Influenza when taking Zovirax *:

  • 0-1: 0.0 %
  • 2-9: 0.0 %
  • 10-19: 0.0 %
  • 20-29: 0.0 %
  • 30-39: 5 %
  • 40-49: 5 %
  • 50-59: 30 %
  • 60+: 60 %

Top conditions involved for these people *:

  1. Multiple Myeloma (cancer of the plasma cells): 9 people, 45.00%
  2. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 7 people, 35.00%
  3. Preventive Health Care: 7 people, 35.00%
  4. Hypogammaglobulinaemia (an abnormally low concentration of gamma globulin in the blood and increased risk of infection): 4 people, 20.00%
  5. Pain: 2 people, 10.00%
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Top co-used drugs for these people *:

  1. Famotidine: 12 people, 60.00%
  2. Gabapentin: 8 people, 40.00%
  3. Prozac: 8 people, 40.00%
  4. Revlimid: 8 people, 40.00%
  5. Lipitor: 8 people, 40.00%
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Top other side effects for these people *:

  1. Bronchitis (inflammation of the mucous membrane in the bronchial tubes): 12 people, 60.00%
  2. Fall: 8 people, 40.00%
  3. Pain: 8 people, 40.00%
  4. Dizziness: 8 people, 40.00%
  5. Swallowing Difficulty: 8 people, 40.00%
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* Approximation only. Some reports may have incomplete information.

What's next:

Do you take Zovirax and have Influenza?

Related studies


Zovirax has active ingredients of acyclovir sodium. It is often used in herpes labialis (oral herpes simplex). (latest outcomes from Zovirax 8,485 users)


Influenza has been reported by people with rheumatoid arthritis, multiple sclerosis, high blood pressure, asthma, psoriasis (latest reports from 54,154 Influenza patients).

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What would happen?

Predict new side effects and undetected conditions when you take Zovirax and have Influenza

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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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