Keflex
In stock
250mg · 500mg
from A$47.02
In brief
Keflex capsules contain cefalexin and are prescribed for bacterial infections such as sinusitis, ear and throat infections, chest infections, skin infections and kidney or bladder infections.
Keflex (cefalexin) at a glance
Keflex is prescribed for bacterial infections. The Keflex consumer medicine information covers infections of the throat, tonsils, chest and lungs, the sinuses, the middle ear, the skin and soft tissue, and the kidneys and bladder.
Cefalexin is the active ingredient. In Australia the brand is sponsored by Aspen Pharmacare Australia, and its 250 mg and 500 mg capsules appear on the Australian Register of Therapeutic Goods. Keflex also exists as an oral suspension; this page lists capsule strengths only.
This listing shows cefalexin 250 mg and 500 mg. It does not name the manufacturer of the capsules supplied, so check the label on the pack you receive and confirm with your prescriber or pharmacist that it matches your prescription.
Capsule prices by pack
Compare packs of the same strength. These examples are for 500 mg and are calculated from the listed prices at the shop’s Australian-dollar rate on 8 October 2026, before delivery or other checkout charges.
| Strength | Pack size | Pack price | Price per capsule |
|---|---|---|---|
| 500 mg | 30 | A$89.63 | A$2.99 |
| 500 mg | 60 | A$168.93 | A$2.82 |
| 500 mg | 180 | A$437.86 | A$2.43 |
For 500 mg, the 60 pack saves about 5.8% per capsule against the 30 pack, and the 180 pack about 18.6%.
A lower price per capsule means a larger upfront payment. Choose only the quantity and strength appropriate to your prescription, and check the expiry date. Prices can change, so confirm the current pack price before ordering.
Keflex and Ibilex
Both brands contain cefalexin. Pack sizes on this page run from 30 to 360 capsules.
Check these before starting
Keflex is unsuitable after any allergic reaction to cefalexin, to penicillin, to another cephalosporin or to an ingredient of the capsule. People with kidney or liver disease need caution, and pregnancy or breastfeeding is something to discuss with the doctor.
Using Keflex
It does not matter whether the capsules are taken with food. Follow the prescribed dose and keep going until the course is complete.
Possible side effects of Keflex
Common side effects listed in the consumer information include nausea, vomiting, diarrhoea, stomach pain, headache, dizziness, tiredness and thrush (oral or vaginal).
A severe allergic reaction, severe bloody diarrhoea with a fever, seizures, jaundice or confusion all call for urgent medical attention. Diarrhoea that persists is linked in the consumer information to a risk of severe colitis.
Probenecid, metformin and Keflex
Probenecid and metformin are listed as interacting medicines. If metformin is one of your medicines, ask your doctor or pharmacist about it.
Keeping the capsules
For Keflex, the consumer information gives below 25 °C for the 250 mg capsules and below 30 °C for the 500 mg capsules. Follow the storage directions on the pack you receive.
Frequently asked questions
Cefalexin or Keflex: what is the difference?
Cefalexin is the active ingredient; Keflex is a brand name for it.
Can the capsules be taken on an empty stomach?
Yes. The consumer information says they can be taken with or without food.
Delivery across Australia
Airmail service: delivery in 14–22 days, free on orders over A$286.52. Trackable service: delivery in 7–14 days, with the tracking number sent by email. These are estimated delivery times, not guaranteed arrival dates.
Australian cities and delivery information
The Australian delivery options above apply to the destinations below. A city listing does not indicate a physical pharmacy branch or local stock.
| City | State or territory |
|---|---|
| Sydney | New South Wales |
| Melbourne | Victoria |
| Brisbane | Queensland |
| Perth | Western Australia |
| Adelaide | South Australia |
| Hobart | Tasmania |
| Gold Coast | Queensland |
| Canberra | Australian Capital Territory |
| Cairns | Queensland |
| Central Coast | New South Wales |
| Townsville | Queensland |
| Darwin | Northern Territory |
| Newcastle | New South Wales |
| Geelong | Victoria |
| Gladstone | Queensland |
| Port Macquarie | New South Wales |
| Bathurst | New South Wales |
| Forbes | New South Wales |
| Geraldton | Western Australia |
| Goulburn | New South Wales |
