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Brand name: Keflex

Keflex is a brand of active ingredient containing the medicine cephalexin. It is only available with a doctor’s prescription.

Keflex belongs to a group of medicines called cephalosporins. Keflex is an antibiotic, which means it kills bacteria that cause an infection. Keflex is used to treat bacterial infections in different parts of the body, including infections of your airways, chest, lungs, nose, sinuses, ears, skin and soft tissue, kidneys and bladder. Always finish the full course of antibiotics to get rid of the infection.

Keflex is available as capsules or a suspension (liquid). Keflex capsules are swallowed whole with a full glass of water. Keflex suspension is also swallowed. It doesn’t matter whether you take Keflex with meals or not.

You should seek medical advice in relation to medicines and use only as directed by a healthcare professional. Always read the label. If symptoms persist see your healthcare professional. healthdirect medicines information is not intended for use in an emergency. If you are suffering an acute illness, overdose, or emergency condition, call triple zero (000) and ask for an ambulance.

Reasonable care has been taken to provide accurate information at the time of creation. This information is not intended to substitute medical advice, diagnosis or treatment and should not be exclusively relied on to manage or diagnose a medical condition. Please refer to our terms and conditions.

Active ingredient in this medicine: cefalexin

Pack size information

Please select the pack size from the options directly below to view information on the medicine.

Information for medicine and pack size:
Keflex 125 mg/5 mL powder for oral liquid, 100 mL

Consumer Medicine Information leaflet:

This leaflet may also be found inside the medicine package. It contains information on side effects, age restrictions and other useful data.

Read leaflet

What this medicine is for

INDICATIONS AS AT 24 FEBRUARY 2004: KEFLEX is indicated in the treatment of the following infections when caused by susceptible strains of the designated microorganisms: Respiratory tract infections caused by S. pneumoniae and group A beta-haemolytic streptococci (Penicillin is the usual drug of choice in the treatment and prevention of streptococcal infections, including the prophylaxis of rheumatic fever. KEFLEX is generally effective in the eradication of streptococci from nasopharynx; however, substantial data establishing the efficacy of KEFLEX in the subsequent prevention of rheumatic fever are not available at present.) Bacterial sinusitis caused by streptococci, S. pneumoniae and S. aureus (methicillin-sensitive only) Otitis media due to S. pneumoniae, staphylococci; Skin and soft tissue infections caused by staphlococci anr/or streptococci; Genitourinary tract infections, including acute prostatic caused by E. coli, P. mirabilis, and Klebsiella sp. The effectiveness of KEFLEX in the treatment of bacterial infections of the brain and spinal column has not been established and KEFLEX is not indicated in these conditions. NOTE: Appropriate culture and susceptibility test should be initiated prior to and during therapy to determine susceptibility of the causative organism to KEFLEX. Renal function studies should be performed when indicated.

Table of characteristics
Table of characteristics
Active ingredient
Visual appearance A white free-flowing powder before reconstitution and a red suspension after reconstitution.
Dosage Form Oral Liquid, powder for
Route of administration Oral
Medicine schedule
100mL: Prescription Only Medicine, or Prescription Animal Remedy

There is one type of pack available.

Pack type 1
Pack type 1
Type Bottle
Storage temperature Store below 25 degrees Celsius
Storage conditions Protect from Light
Life time 2 Years
This medicine was verified as being available on the PBS (Pharmaceutical Benefits Scheme) on 1 November 2017

The PBS provides a list of government subsidised medicines available to be dispensed to patients. Further information can be found on the Pharmaceutical Benefits Scheme website.

Go to PBS site

Is this medication banned in sport?

Check if you can use your medicine whilst playing sport. Search the Australian Sports Anti-Doping Authority (ASADA) database that provides information about the prohibited status of specific medications and/or the active ingredient based on the current World Anti-Doping Agency (WADA) Prohibited List.

Go to ASADA site

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