Comparing Metronidazole vs Erythromycin
Metronidazole | Erythromycin |
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Metronidazole | Erythromycin |
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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
Prescribed for Bronchitis, Bacterial Endocarditis Prevention, Bowel Preparation, Bartonellosis, Bullous Pemphigoid, Campylobacter Gastroenteritis, Chancroid, Chlamydia Infection, Dental Abscess... View more |
Related suggestions Skin or Soft Tissue Infection
Dental Abscess
Skin and Structure Infection
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More about Metronidazole | More about Erythromycin | ||||||||||||||||
Ratings & Reviews | |||||||||||||||||
Metronidazole has an average rating of 6.1 out of 10 from a total of 2421 ratings on Drugs.com. 45% of reviewers reported a positive effect, while 28% reported a negative effect. |
Erythromycin has an average rating of 6.2 out of 10 from a total of 67 ratings on Drugs.com. 43% of reviewers reported a positive effect, while 32% reported a negative effect. |
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Drug Class | |||||||||||||||||
Side Effects | |||||||||||||||||
See also: metronidazole side effects in more detail. |
See also: erythromycin side effects in more detail. |
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Generic Availability | |||||||||||||||||
Lower cost generic |
Lower cost generic |
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Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all metronidazole prices |
View all erythromycin prices |
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Dosage Form(s) Available | |||||||||||||||||
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Brand Names | |||||||||||||||||
Flagyl, Flagyl 375, Flagyl IV, Likmez, Metro, Metro IV | E-Mycin, E.E.S. Granules, E.E.S.-200, E.E.S.-400, E.E.S.-400 Filmtab, Ery-Tab, Eryc, EryPed, Erythrocin, Erythrocin Lactobionate, Erythrocin Stearate Filmtab, Erythrocot, PCE Dispertab, Wyamycin S View more | ||||||||||||||||
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. | |||||||||||||||||
20 hours |
2 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. |
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Pregnancy Category | |||||||||||||||||
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 349 drugs are known to interact with metronidazole:
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A total of 641 drugs are known to interact with erythromycin:
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Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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Disease Interactions | |||||||||||||||||
First Approval Date | |||||||||||||||||
July 18, 1963 |
June 24, 1964 |
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WADA Class View World Anti-Doping Agency classifications. | |||||||||||||||||
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.