Review: could Flagyl cause Pneumonia?


Pneumonia is found among people who take Flagyl, especially for people who are female, 60+ old , have been taking the drug for < 1 month, also take medication Zometa, and have Multiple myeloma . We study 11,424 people who have side effects while taking Flagyl from FDA and social media. Among them, 514 have Pneumonia. Find out below who they are, when they have Pneumonia and more.

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Flagyl has active ingredients of metronidazole. It is often used in crohn's disease. (latest outcomes from Flagyl 12,204 users)


Pneumonia has been reported by people with breathing difficulty, hypotension, rashes, thrombocytopenia, weakness (latest reports from 126,781 Pneumonia patients).

On Aug, 26, 2016

11,424 people reported to have side effects when taking Flagyl.
Among them, 514 people (4.5%) have Pneumonia

Number of reports submitted per year:

Could Flagyl cause Pneumonia?

Time on Flagyl when people have Pneumonia *:

  • < 1 month: 94.74 %
  • 1 - 6 months: 2.63 %
  • 6 - 12 months: 0.0 %
  • 1 - 2 years: 2.63 %
  • 2 - 5 years: 0.0 %
  • 5 - 10 years: 0.0 %
  • 10+ years: 0.0 %

Gender of people who have Pneumonia when taking Flagyl *:

  • female: 62.11 %
  • male: 37.89 %

Age of people who have Pneumonia when taking Flagyl *:

  • 0-1: 0.23 %
  • 2-9: 0.68 %
  • 10-19: 2.73 %
  • 20-29: 1.14 %
  • 30-39: 2.05 %
  • 40-49: 17.27 %
  • 50-59: 21.14 %
  • 60+: 54.77 %

Top conditions involved for these people *:

  • Multiple Myeloma (61 people)
  • Osteoporosis (53 people)
  • Systemic Lupus Erythematosus (29 people)
  • Pain (29 people)
  • Nausea (24 people)

Top co-used drugs for these people *:

  • Zometa (230 people)
  • Levaquin (166 people)
  • Lasix (157 people)
  • Aredia (157 people)
  • Prednisone (147 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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