Cephalexin

Please note: these are basic guidelines, refer to your doctor for a professional medical opinion.

Popular brand names:

Ranceph

Drug group:

Antibiotic, Cephalosporin

Prescription needed?

Yes

What does it do?

Cephalexin is an antibiotic used to treat mild to moderate bacterial infections of the respiratory tract (including ear), bladder, skin and soft tissue.

How should it be used?

• The suspension should be refrigerated and kept for no longer than 10 days
• Tell your doctor if you are allergic to penicillin as you may also be allergic to cephalexin

What is the typical dosage?

Your doctor will recommend a dosage tailored to your need, but typically:

• Total daily dose for adults: 1–4g (in 2–4 doses depending on the condition being treated)
• Children require lower doses calculated according to weight and age

How quickly will it start to work?

Within 1 hour
   

How long will the effects last?

6–12 hours
          

When should I stop using it?

Complete the course as prescribed by your doctor
                   

Is it safe for prolonged use?

It is usually given only for short courses of treatment                                     

What are the possible side effects?

The following have been reported:

• More common: diarrhoea (usually mild, but can be severe in the elderly)
• Less common: nausea, vomiting, abdominal pain
• Report to your doctor before taking your next dose if you experience: signs of an allergic reaction (rash, itching, swelling, and wheezing)

What other considerations are important?

Dosage may be adjusted by your doctor under certain conditions.

• Certain health problems: kidney/blood problems
• Other medicines: Probenecid, oral contraceptives
• Pregnancy and breast-feeding: No evidence of risk to the foetus or baby
• Children: Reduced dose according to weight of child
• Over 60: Avoid, increased risk of Clostridium difficile diarrhoea
• Driving and hazardous work: No known problems
• Alcohol: No known problems