Comparing Cephalexin vs Keflex
| Cephalexin | Keflex |
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| Cephalexin | Keflex (cephalexin) |
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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
Keflex is a cephalosporin-type antibiotic that may be used in the treatment of gram-positive cocci infections. However, it should be used with caution in people with a penicillin allergy. Prescribed... View more |
Related suggestions Bacterial Infection
Bladder Infection
Skin or Soft Tissue Infection
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| More about Cephalexin | More about Keflex (cephalexin) | ||||||||
| Generic Status | |||||||||
| Ratings & Reviews | |||||||||
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Cephalexin has an average rating of 6.4 out of 10 from a total of 478 ratings on Drugs.com. 52% of reviewers reported a positive effect, while 29% reported a negative effect. |
Keflex has an average rating of 7.3 out of 10 from a total of 86 ratings on Drugs.com. 66% of reviewers reported a positive effect, while 20% reported a negative effect. |
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| Drug Class | |||||||||
| Side Effects | |||||||||
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See also: cephalexin side effects in more detail. |
See also: Keflex side effects in more detail. |
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| Pricing and Coupons * Prices are without insurance | |||||||||
View all cephalexin prices |
We could not find an exact match for this medicine. Try searching the Price Guide directly. |
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| Dosage Form(s) Available | |||||||||
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| Brand Names | |||||||||
| Keflex |
N/A |
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| 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. | |||||||||
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1 hour |
1 hour |
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| CSA Schedule ** View glossary of 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 35 drugs are known to interact with cephalexin:
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A total of 35 drugs are known to interact with Keflex:
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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 |
January 04, 1971 |
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| WADA Class View World Anti-Doping Agency classifications. | |||||||||
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N/A |
N/A |
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| More Information | |||||||||
| Patient resources | |||||||||
| Professional Resources | |||||||||
| Related Treatment Guide | |||||||||
** 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.