Comparing Cephalexin vs Zithromax
| Cephalexin | Zithromax (azithromycin) |
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| Cephalexin | Zithromax (azithromycin) |
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Prescription only
Cephalexin is a cephalosporin-type antibiotic that may be used in the treatment of infections caused by susceptible gram-positive bacteria. Approximately 10% of people who are allergic to penicillin... 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 Bacterial Infection
Skin or Soft Tissue Infection
Middle Ear Infections (Otitis Media)
Upper Respiratory Tract Infection
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| More about Cephalexin | More about Zithromax (azithromycin) | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Cephalexin has an average rating of 6.4 out of 10 from a total of 509 ratings on Drugs.com. 51% of reviewers reported a positive effect, while 28% 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 Cephalexin 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 Cephalexin prices |
View all Zithromax prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Keflex | 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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1 hour |
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 54 drugs are known to interact with Cephalexin:
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A total of 373 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. |
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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January 04, 1971 |
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.