Comparing Metronidazole vs Vancomycin
| Metronidazole | Vancomycin |
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| Metronidazole | Vancomycin |
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Prescription only
Metronidazole is an antibiotic that is particularly effective at treating infections caused by susceptible anaerobic bacteria and parasites. Alcohol and products containing propylene glycol should... View more |
Prescription only
Vancomycin is an antibiotic that may be used in the treatment of C. difficile-associated diarrhea or enterocolitis when given orally, or other severe infections when given intravenously (IV)... View more |
Related suggestions Bacterial Infection
Skin or Soft Tissue Infection
Skin and Structure Infection
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| More about Metronidazole | More about Vancomycin | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Metronidazole has an average rating of 6.1 out of 10 from a total of 2422 ratings on Drugs.com. 45% of reviewers reported a positive effect, while 28% reported a negative effect. |
Vancomycin has an average rating of 6.6 out of 10 from a total of 56 ratings on Drugs.com. 50% of reviewers reported a positive effect, while 27% reported a negative effect. |
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| Drug Class | |||||||||||||||||
| Side Effects | |||||||||||||||||
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See also: metronidazole side effects in more detail. |
See also: vancomycin side effects in more detail. |
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| Generic Availability | |||||||||||||||||
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Lower cost generic |
Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all metronidazole prices |
View all vancomycin prices |
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| Dosage Forms Available | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Flagyl, Flagyl 375, Flagyl IV, Likmez, Metro, Metro IV | Firvanq, Vancocin, Vancocin HCl, Vancocin HCl Pulvules | ||||||||||||||||
| Half Life The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value. | |||||||||||||||||
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20 hours |
5.2 hours |
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| CSA Schedule ** View glossary of 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 354 drugs are known to interact with metronidazole:
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A total of 162 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 World Anti-Doping Agency 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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** 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.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.