Comparing Flagyl vs Vancomycin
| Flagyl (metronidazole) | Vancomycin |
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| Flagyl (metronidazole) | Vancomycin |
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Prescription only
Flagyl (metronidazole) is an antibiotic that is used to treat trichomoniasis infections, amebiasis, and serious anaerobic bacterial infections caused by susceptible bacteria.A headache, nausea... View more |
Prescription only
Vancomycin is an antibiotic used to treat C. difficile-associated diarrhea or S. aureus enterocolitis when given orally, or other severe infections when given intravenously (IV). Oral dosages... View more |
Related suggestions Bacterial Infection
Skin or Soft Tissue Infection
Clostridioides difficile Infection
Popular comparisons
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| More about Flagyl (metronidazole) | More about Vancomycin | ||||||||
| Ratings & Reviews | |||||||||
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Flagyl has an average rating of 6.1 out of 10 from a total of 394 ratings on Drugs.com. 45% of reviewers reported a positive effect, while 29% reported a negative effect. |
Vancomycin has an average rating of 6.6 out of 10 from a total of 58 ratings on Drugs.com. 48% of reviewers reported a positive effect, while 26% reported a negative effect. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||
View all Flagyl side effects |
View all Vancomycin side effects |
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| Drug Class | |||||||||
| Generic Availability | |||||||||
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Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||
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We could not find an exact match for this medicine. Try searching the Price Guide directly. |
View all Vancomycin prices |
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| Dosage Forms | |||||||||
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| Brand Names | |||||||||
| Other metronidazole brands include: Flagyl 375, Flagyl IV, Likmez, Metro, Metro IV | Firvanq, Tyzavan, Vancocin, Vancocin HCl, Vancocin HCl Pulvules | ||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||
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20 hours |
5.2 hours |
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| CSA Schedule 1 View glossary of CSA terms | |||||||||
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Not a controlled drug
Is not subject to the Controlled Substances Act. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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| Pregnancy Category | |||||||||
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Category B
No proven risk in humans
See the full pregnancy warnings document. |
Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||
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A total of 393 drugs are known to interact with Flagyl:
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A total of 183 drugs are known to interact with Vancomycin:
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| Alcohol/Food/Lifestyle Interactions | |||||||||
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No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
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| Disease Interactions | |||||||||
| First Approval Date | |||||||||
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July 18, 1963 |
July 13, 1983 |
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| WADA Class View classifications | |||||||||
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N/A |
N/A |
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| More Information | |||||||||
| Patient Resources | |||||||||
| Professional Resources | |||||||||
| Related Treatment Guide | |||||||||
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1 The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.
See also:
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.