Vancomycin Alternatives Compared
Vancomycin | Flagyl | Dificid |
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Vancomycin | Flagyl (metronidazole) | Dificid (fidaxomicin) |
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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 |
Prescription only
Flagyl is an antibiotic that is particularly effective at treating infections caused by susceptible anaerobic bacteria and parasites. Avoid alcohol while taking Flagyl and for three days after... View more |
Prescription only
Prescribed for Clostridioides difficile Infection. Dificid may also be used for purposes not listed in this medication guide. |
Related suggestions Clostridioides difficile Infection
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More about Vancomycin | More about Flagyl (metronidazole) | More about Dificid (fidaxomicin) | ||||||||||||||||
Ratings & Reviews | ||||||||||||||||||
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. |
Flagyl has an average rating of 6.2 out of 10 from a total of 391 ratings on Drugs.com. 48% of reviewers reported a positive effect, while 27% reported a negative effect. |
Dificid has an average rating of 7.3 out of 10 from a total of 16 ratings on Drugs.com. 60% of reviewers reported a positive effect, while 13% reported a negative effect. |
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Drug Class | ||||||||||||||||||
Side Effects | ||||||||||||||||||
See also: vancomycin side effects in more detail. |
See also: Flagyl side effects in more detail. |
See also: Dificid side effects in more detail. |
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Generic Availability | ||||||||||||||||||
Lower cost generic |
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Pricing and Coupons * Prices are without insurance | ||||||||||||||||||
View all vancomycin prices |
We could not find an exact match for this medicine. Try searching the Price Guide directly. |
View all Dificid prices |
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Dosage Forms Available | ||||||||||||||||||
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Brand Names | ||||||||||||||||||
Firvanq, Vancocin, Vancocin HCl, Vancocin HCl Pulvules | Other metronidazole brands include: Flagyl 375, Flagyl IV, Likmez, Metro, Metro IV |
N/A |
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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. | ||||||||||||||||||
5.2 hours |
20 hours |
16.5 hours |
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CSA Schedule ** View glossary of terms | ||||||||||||||||||
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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 | ||||||||||||||||||
Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
Category B
No proven risk in humans
See the full pregnancy warnings document. |
Category B
No proven risk in humans
See the full pregnancy warnings document. |
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Drug Interactions | ||||||||||||||||||
A total of 162 drugs are known to interact with vancomycin:
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A total of 354 drugs are known to interact with Flagyl:
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A total of 130 drugs are known to interact with Dificid:
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Alcohol/Food/Lifestyle Interactions | ||||||||||||||||||
No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
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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 | ||||||||||||||||||
No known disease interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
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First Approval Date | ||||||||||||||||||
July 13, 1983 |
July 18, 1963 |
May 27, 2011 |
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WADA Class View World Anti-Doping Agency classifications. | ||||||||||||||||||
N/A |
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.