Comparing Erythromycin vs Zithromax
| Erythromycin | Zithromax (azithromycin) |
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| Erythromycin | Zithromax (azithromycin) |
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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
Zithromax is an antibiotic used to treat a variety of different infections and it appears to have better tissue penetration and tolerability than similar antibiotics, such as erythromycin. Zithromax... View more |
Related suggestions Chlamydia Infection
Skin or Soft Tissue Infection
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| More about Erythromycin | More about Zithromax (azithromycin) | ||||||||||||||||
| 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. |
Zithromax has an average rating of 7.1 out of 10 from a total of 127 ratings on Drugs.com. 61% of reviewers reported a positive effect, while 22% 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 Zithromax 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 | |||||||||||||||||
View all Erythromycin prices |
View all Zithromax 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 | Other azithromycin brands include: Azithromycin Dose Pack, Z-Pak | ||||||||||||||||
| 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 |
53 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 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 673 drugs are known to interact with Erythromycin:
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A total of 372 drugs are known to interact with Zithromax:
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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 |
November 01, 1991 |
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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.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.