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Quantity:
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Airmail 14–21 days
Express delivery 5–9 days
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Cephalexin is a cephalosporin antibiotic that blocks bacteria from making a cell wall. It is a first‑generation cephalosporin and mainly treats skin infections, ear infections, throat infections, and some urinary tract infections.

It is taken by mouth as a capsule or liquid. Use exactly as prescribed, and finish the full course unless your clinician tells you to stop.

How it compares to related substances in the same class

Cephalexin shares the general action of other cephalosporins. It differs in how strong it is against certain bacteria and in dosing. Other first‑generation options like cefadroxil are taken by mouth but have different schedules and age guidelines.

Some people tolerate one drug better than another. Your clinician can choose the best option for your infection and health needs.

Therapeutic uses

Cephalexin treats many common bacterial infections. It is often used for skin and soft tissue infections, such as minor wounds or boils. It also helps with throat infections, ear infections, and some urinary tract infections.

Your doctor will decide if cephalexin is right for you. Do not use it for viral infections like colds or flu.

Key differences from similar medications

Here is a quick look at three oral cephalosporins. They share some uses but differ in how they are given and in safety notes.

MedicationRouteTypical useNotes
CephalexinOralSkin, ear, throat infections; some UTIsFirst‑generation; variety of ages
CefadroxilOralSkin infections; UTIsSimilar spectrum; different dosing
CefazolinIV/IMSerious infections; surgical prophylaxisNot available by mouth

Safety profile summary

Cephalexin is usually well tolerated. Common side effects are stomach upset, diarrhea, or a mild rash.

Allergic reactions can occur. Signs include swelling of the face or throat or trouble breathing. If you have kidney disease, your doctor may adjust the dose. Do not use cephalexin if you have a penicillin allergy without medical advice.

✈️

Airmail

14–21 days. Free from €175.20 .

Express delivery

5–9 days. €26.28

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−10% on all repeat orders.

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All orders are packed in neutral, unbranded boxes with no product name on the outside.

Declan Farrell
Medically reviewed by
Declan Farrell
Registered Pharmacist (MPharm), Medical Editor