Last updated: October 22, 2026
Our Mission
CefaHub is an independent educational publisher about cephalexin, its historical Keflex brand name and related U.S. prescription products. Our purpose is to clarify active ingredients, dosage forms, official label evidence, common safety questions and the practical steps involved in lawful pharmacy dispensing. We do not diagnose infections, prescribe antibiotics, fill prescriptions, verify a pharmacy’s stock or guarantee treatment outcomes.
Readers encounter overlapping search phrases such as Keflex, generic cephalexin, 500 mg capsules, pediatric liquid, penicillin allergy and antibiotic alternatives. We maintain separate guides because these questions require different evidence. A product label can describe a dosage form; a clinical guideline may recommend a treatment for a particular infection; a pharmacy can confirm whether an exact product can actually be dispensed.
What CefaHub Covers
Our articles distinguish cephalexin capsules, documented tablet products and oral suspension. For liquid preparations, 125 mg/5 mL and 250 mg/5 mL specify distinct concentrations, not universal doses. Capsule records can describe 250 mg, 333 mg, 500 mg and 750 mg presentations depending on the label; these records should never be interpreted as an assurance of local stock. See the forms guide for the product-family overview.
We also explain FDA product status, historical Keflex entries, generic equivalence, manufacturers versus labelers, cash and insurance price factors, licensed online pharmacy verification and comparison with other antibiotics. Diagnosis-focused articles discuss skin infections, selected urinary infections, strep throat and limitations where cephalexin may not be suitable. Comparisons do not authorize substitution.
Which Sources Answer Which Questions
For approved products and therapeutic-equivalence classifications, our starting point is the FDA Orange Book. The FDA NDC database background explains why an NDC listing is not evidence of FDA approval. DailyMed cephalexin prescribing information documents specific labeled forms, directions and warnings. Clinical-treatment recommendations may require condition-specific guidance from CDC or IDSA.
A record should be interpreted within its own limits: neither a published label nor an FDA product record verifies today’s retail inventory. A clinical guideline does not replace evaluation by a qualified professional, and a pharmacy advertisement does not establish the safety or legitimacy of a prescription source.
| Source | Useful for | Not proof of |
|---|---|---|
| FDA Orange Book | U.S. product approval and applicable equivalence | A pharmacy currently stocking a package |
| DailyMed prescribing information | Label-specific ingredients, forms and precautions | Suitability for an individual person |
| FDA NDC listing | Labeler-submitted product and package identification | FDA approval or insurance coverage |
| CDC / IDSA guidance | Condition-specific recommended clinical pathways | A prescription without diagnosis |
| Licensed pharmacy inquiry | Current quoted terms and practical fulfillment | Clinical appropriateness of treatment |
Why Brand, Generic and Manufacturer Are Separate Questions
Keflex historically named cephalexin. Original-brand capsule entries appear in the discontinued section of FDA records, but that should not be conflated with a ban on the active ingredient or disappearance of approved generics. Brand history, generic equivalence and current marketing status are distinct topics. Read the Keflex product guide alongside the generic product guide.
Company names in a package record may refer to the application holder, labeler, distributor, physical manufacturer or repackager. CefaHub does not rank manufacturers by quality, invent live availability or claim that a printed commercial name establishes who physically made the product.
Our Editorial Independence
Some CefaHub articles may include clearly identified advertising or affiliate referrals to independent third parties. A referral relationship does not verify pharmacy licensure, product authenticity, stock, clinical suitability or final price. Such arrangements must not determine our clinical or regulatory conclusions.
We distinguish source checking and copyediting from professional medical review. A real, identified clinician is credited only when there is verifiable, article-specific review and permission. Our Editorial Policy, Medical Review Process and Reviewer Standards explain those rules.
Corrections and Reader Responsibilities
If you see a questionable claim, broken official link, wrong dosage-form description or outdated regulatory status, report the exact page and public evidence through our contact form. Do not submit health records, patient identifiers or payment details. Neither an article nor an editorial reply can diagnose, prescribe or provide emergency support.
For adverse reactions, dosing, allergies, symptoms or uncertainty about antibiotics, seek qualified medical or pharmacist advice. Emergency symptoms require urgent care through appropriate emergency services.