Erythromycin Alternatives Compared
| Erythromycin | Amoxicillin | Metronidazole |
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| Erythromycin | Amoxicillin | Metronidazole |
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Prescription only
Prescribed for Bronchitis, Bacterial Endocarditis Prevention, Bowel Preparation, Bartonellosis, Bullous Pemphigoid, Campylobacter Gastroenteritis, Chancroid, Chlamydia Infection, Dental Abscess... View more |
Prescription only
Amoxicillin is a penicillin-type antibiotic that may be used to treat infections caused by susceptible bacteria. It is usually well tolerated, but a rash is a common side effect. Prescribed for... View more |
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 |
Related suggestions Skin or Soft Tissue Infection
Dental Abscess
Skin and Structure Infection
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| More about Erythromycin | More about Amoxicillin | More about Metronidazole | ||||||||||||||||||||||||
| Ratings & Reviews | ||||||||||||||||||||||||||
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Erythromycin has an average rating of 6.1 out of 10 from a total of 67 ratings on Drugs.com. 40% of reviewers reported a positive effect, while 31% reported a negative effect. |
Amoxicillin has an average rating of 6.4 out of 10 from a total of 367 ratings on Drugs.com. 53% of reviewers reported a positive effect, while 29% reported a negative effect. |
Metronidazole has an average rating of 6.0 out of 10 from a total of 2431 ratings on Drugs.com. 44% of reviewers reported a positive effect, while 29% 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 Erythromycin side effects |
View all Amoxicillin side effects |
View all Metronidazole side effects |
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| Drug Class | ||||||||||||||||||||||||||
| Generic Availability | ||||||||||||||||||||||||||
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Lower cost generic |
Lower cost generic |
Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | ||||||||||||||||||||||||||
View all Erythromycin prices |
View all Amoxicillin prices |
View all Metronidazole prices |
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| Dosage Forms | ||||||||||||||||||||||||||
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| Brand Names | ||||||||||||||||||||||||||
| 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 | Amoxil, Apo-Amoxi | Flagyl, Flagyl 375, Flagyl IV, Likmez, Metro, Metro IV | ||||||||||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | ||||||||||||||||||||||||||
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2 hours |
1.7 hours |
20 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. |
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 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 | ||||||||||||||||||||||||||
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A total of 677 drugs are known to interact with Erythromycin:
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A total of 63 drugs are known to interact with Amoxicillin:
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A total of 388 drugs are known to interact with Metronidazole:
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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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June 24, 1964 |
January 18, 1974 |
July 18, 1963 |
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| WADA Class View classifications | ||||||||||||||||||||||||||
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N/A |
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.
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.