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Keflex

Keflex contains cephalexin, a bactericidal antibiotic, and is registered in 22 countries spanning several continents. It is one of the longer-established cephalexin brands on the international market, familiar to clinicians and patients in markets as different as Australia, Brazil, Japan, Norway, and Egypt.

Cephalexin is prescribed in the management of a range of bacterial infections. The indications associated with Keflex across its registered markets include respiratory tract infections such as pneumonia, ear infections including chronic middle ear infection, urinary and prostate infections including acute prostatitis, and bone infections, among other bacterial conditions. The structured indication block further down this page lists each registered use as recognised by national regulators.

Because Keflex has a mid-sized international footprint, travellers and expatriates encounter it inconsistently — common in some pharmacies, absent in others. Markets where it is registered include Mexico, Ireland, Lebanon, Iceland, and Lithuania, but regulatory packaging, prescription pathways, and even product strength conventions differ from one country to another. Where Keflex itself is not stocked, cephalexin is widely available under other brand names, and a local pharmacist can usually identify the equivalent product on a regional formulary.

Other antibiotics in the broader bactericidal family — including other cephalosporins and unrelated classes — are also distributed worldwide under many brand names. Antibiotics, however, are not freely interchangeable: choice depends on the specific infection, local resistance patterns, patient history, and prescriber judgement. Anyone taking Keflex, being prescribed it abroad, or trying to identify a local cephalexin equivalent should treat that decision as a clinical one and speak with a healthcare provider familiar with their situation.

How does this drug class actually work?
Read the plain-language explainer in Pharmacology Academy (Antibiotics) →

Frequently asked questions

What conditions does Keflex treat?

Keflex is prescribed in the management of various bacterial infections, including pneumonia, middle ear infection and chronic middle ear infection, prostatitis and acute prostatitis, and bone infection, among other indications listed for the brand. As a bactericidal antibiotic, it acts directly on susceptible bacteria. The complete indication list registered with national regulators in the markets where Keflex is sold appears in the structured section below this introduction.

Which active substance is in Keflex?

Keflex contains cephalexin, classified as a bactericidal antibiotic. Cephalexin is the same molecule whether sold under the Keflex brand or under one of many other commercial names used in different countries — internationally, the same active ingredient circulates under multiple brand names, with availability shaped by which manufacturers hold marketing authorisation in each market.

In how many countries is Keflex available?

Keflex is registered in 22 countries, spread across Europe, the Americas, Asia, the Middle East, and Oceania. Examples include Australia, Brazil, Japan, Norway, Egypt, Mexico, and Ireland. If your country is not listed, a local pharmacist can usually confirm whether cephalexin is available in that market under a different brand name or as a generic preparation.

Can I find a generic version of Keflex?

Cephalexin is sold under several brand names worldwide, particularly as a generic, since the molecule has been off-patent for many years. Other antibiotics — both within the cephalosporin family and in unrelated classes — are also widely available, but antibiotics are not interchangeable without prescriber input. To identify a local cephalexin product, search the active ingredient on Pill2Trip or ask a pharmacist in your country.

Is Keflex a prescription medication?

Yes. Keflex is a prescription antibiotic in essentially every market where it is registered, and the choice of antibiotic depends on the specific infection, local bacterial resistance patterns, allergies, and concurrent medications. This matters particularly for travellers and expatriates, since prescription rules and the antibiotics actually stocked vary between countries. Any decision to start, continue, or substitute cephalexin should involve a healthcare provider.

Keflex

Available in 22 countries