Comparing Penicillin VK vs Cephalexin
Penicillin VK | Cephalexin |
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Penicillin VK (penicillin v potassium) | Cephalexin |
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Prescription only
Prescribed for Bacterial Infection, Fusospirochetosis - Trench Mouth, Clostridioides difficile Infection, Cutaneous Bacillus anthracis, Lyme Disease - Erythema Chronicum Migrans, Middle Ear... 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
Skin or Soft Tissue Infection
Middle Ear Infections (Otitis Media)
Upper Respiratory Tract Infection
Popular comparisons
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More about Penicillin VK (penicillin v potassium) | More about Cephalexin | ||||||||
Ratings & Reviews | |||||||||
Penicillin VK has an average rating of 6.5 out of 10 from a total of 31 ratings on Drugs.com. 56% of reviewers reported a positive effect, while 32% reported a negative effect. |
Cephalexin has an average rating of 6.4 out of 10 from a total of 505 ratings on Drugs.com. 52% of reviewers reported a positive effect, while 28% reported a negative effect. |
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Drug Class | |||||||||
Side Effects | |||||||||
See also: Penicillin VK side effects in more detail. |
See also: cephalexin side effects in more detail. |
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Generic Availability | |||||||||
N/A |
Lower cost generic |
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Pricing and Coupons * Prices are without insurance | |||||||||
We could not find an exact match for this medicine. Try searching the Price Guide directly. |
View all cephalexin prices |
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Dosage Forms Available | |||||||||
N/A |
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Brand Names | |||||||||
N/A |
Keflex | ||||||||
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. | |||||||||
1 hour |
1 hour |
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CSA Schedule ** View glossary of terms | |||||||||
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 | |||||||||
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 | |||||||||
A total of 40 drugs are known to interact with Penicillin VK:
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A total of 37 drugs are known to interact with cephalexin:
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Alcohol/Food/Lifestyle Interactions | |||||||||
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 | |||||||||
N/A |
January 04, 1971 |
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WADA Class View World Anti-Doping Agency classifications. | |||||||||
N/A |
N/A |
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More Information | |||||||||
Patient resources | |||||||||
Professional Resources | |||||||||
Related Treatment Guide | |||||||||
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** 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.