Comparing Amoxicillin vs Cephalexin
| Amoxicillin | Cephalexin |
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| Amoxicillin | Cephalexin |
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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
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 |
Related suggestions Bacterial Infection
Bladder Infection
Skin or Soft Tissue Infection
Middle Ear Infections (Otitis Media)
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| More about Amoxicillin | More about Cephalexin | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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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. |
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. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||||||||||
View all Amoxicillin side effects |
View all Cephalexin side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Amoxicillin prices |
View all Cephalexin prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Amoxil, Apo-Amoxi | Keflex | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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1.7 hours |
1 hour |
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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 63 drugs are known to interact with Amoxicillin:
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A total of 56 drugs are known to interact with Cephalexin:
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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 18, 1974 |
January 04, 1971 |
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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.
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.