Comparing Bactrim vs Cephalexin
| Bactrim Remove Bactrim from your drug comparison | Cephalexin Remove Cephalexin from your drug comparison |
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| Bactrim sulfamethoxazole / trimethoprim Remove Bactrim from your drug comparison | Cephalexin Remove Cephalexin from your drug comparison |
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Bactrim is an effective combination antibiotic; however, it may not be suitable for those with kidney or liver disease or folate deficiency. The risk of side effects may be higher in the elderly... View more |
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 |
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Prescription only |
Prescription only |
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Ratings & Reviews |
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Drug Class |
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Side Effects |
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See the full Bactrim side effects document. |
See the full cephalexin side effects document. |
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Pricing and Coupons* Prices are without insurance |
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View all Bactrim prices and generic prices |
View all cephalexin prices |
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Generic Availability |
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Yes (this medicine) |
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Dosage Form(s) Available |
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Brand Names |
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| Other sulfamethoxazole / trimethoprim brands include: Bactrim DS, Bactrim IV, Bactrim Pediatric, Bethaprim, Bethaprim Pediatric, Co-trimoxazole, Septra, Septra DS, SMZ-TMP DS, Sulfatrim Pediatric View more | Keflex | ||||||||||||||||
Half LifeThe 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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14 hours |
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 D
Positive evidence of risk
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 387 drugs are known to interact with Bactrim:
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A total of 35 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. |
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Disease Interactions |
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First Approval Date |
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July 30, 1973 |
January 04, 1971 |
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WADA ClassView World Anti-Doping Agency classifications. |
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N/A |
N/A |
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More Information |
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Patient resources |
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Professional Resources |
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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.