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keflex

Keflex (Cephalexin) is a cephalosporin antibacterial used to treat Human Bites, Infectious Bone Diseases, Escherichia Coli Infections, Haemophilus Infections.

Cephalexin · by Pragma

Available as a generic: Cephalexin

Not yet rated· sourced from the FDA label
Rated against independent regulatory sources·Last updated June 7, 2026·How we rate
Verified againstopenFDANIH DailyMedRxClass

Key facts

Active ingredient
Cephalexin
Form
Capsule
Strength
Cephalexin EQ 250MG Base **Federal Register Determination That Product was not Discontinued or Withdrawn for Safety or Effectiveness reasons** · Cephalexin EQ 333MG Base **Federal Register Determination That Product was not Discontinued or Withdrawn for Safety or Effectiveness reasons** · Cephalexin EQ 500MG Base **Federal Register Determination That Product was not Discontinued or Withdrawn for Safety or Effectiveness reasons** · Cephalexin EQ 750MG Base **Federal Register Determination That Product was not Discontinued or Withdrawn for Safety or Effectiveness reasons**
Type
Prescription (Rx)
Brand or generic
Brand-name
Manufacturer
Pragma
What the pharmacy pays
~$0.10 per ml — not your price
FDA application
NDA050405
Availability
Discontinued (per FDA)

Drug class

How this class works, per Cephalosporins - StatPearls - NCBI Bookshelf.

May treat (source: NIH RxClass)

Dosage forms

Capsule

The forms currently marketed in the U.S., per the FDA National Drug Code Directory.

Ways to save

Ask for the generic

Same active ingredient, far cheaper. Is there a generic? →

Request a 90-day supply

Bulk fills usually lower the per-dose price vs monthly refills.

Use copay cards

Manufacturer copay cards & patient-assistance programs — especially for brand drugs.

Compare alternatives

A same-class option may cost less. See alternatives →

Frequently asked questions

What does Keflex treat?
Keflex (Cephalexin) may be used to treat human bites, infectious bone diseases, escherichia coli infections, haemophilus infections, klebsiella infections, otitis media, based on NIH RxClass drug-classification data (conditions a drug may treat — not a verbatim copy of the FDA-approved label). This is general reference, not medical advice.
How does Keflex work?
Keflex is a cephalosporin antibacterial. Cephalosporins kill bacteria by blocking the proteins they use to build their cell walls. Without an intact wall, the bacterium cannot hold its shape and dies, which clears the infection.
How much does Keflex cost?
Nobody can tell you what you will pay — your price is set by your insurer's formulary, your deductible and the pharmacy's markup, and none of those are published. What IS published is what the pharmacy paid to acquire it: about $0.10 per ml, per the CMS NADAC survey. Treat that as the floor, not the quote — ask the pharmacist for the cash price as well as your copay, because for cheap generics the cash price often wins.
Is there a coupon or discount for Keflex?
pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Keflex. To pay less, ask your prescriber or pharmacist whether a generic equivalent exists, check the manufacturer's copay/savings card and patient-assistance program, and compare a pharmacy discount card against your insurance copay. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
Who makes Keflex?
Keflex is marketed by Pragma. You can see Pragma's full profile, rating, and other products on pharmaranks.
Is Keflex a brand-name or generic drug?
Keflex is a brand-name product with the active ingredient Cephalexin. Lower-cost generic equivalents containing Cephalexin are available — ask your pharmacist.
Is Keflex available over the counter?
No. Keflex is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
What forms does Keflex come in?
Keflex is currently marketed as capsule, per the FDA's National Drug Code Directory.
What class of drug is Keflex?
Keflex is classified as cephalosporin antibacterial, per the FDA's Established Pharmacologic Class.
Is Keflex FDA-registered?
Keflex is on record with the U.S. FDA under application number NDA050405. You can verify this on its official FDA label.

Information is sourced from public FDA regulatory data. Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.

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