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Active substance(s): CEFALEXIN MONOHYDRATE

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(cefalexin monohydrate)
Read all of this leaflet carefully before you start taking this medicine because it contains
important information for you.
• Keep this leaflet. You may need to read it again.
• If you have any further questions, ask your doctor or pharmacist.
• This medicine has been prescribed for you only. Do not pass it on to others. It may
harm them, even if their signs of illness are the same as yours.
• If you get any side effects, talk to your doctor or pharmacist. This includes any possible
side effects not listed in this leaflet. See section 4.
1. What Cefalexin is and what it is used for
2. What you need to know before you take Cefalexin
3. How to take Cefalexin capsules
4. Possible side effects
5. How to store Cefalexin capsules
6. Contents of the pack and other information
Cefalexin capsules contain cefalexin as the active ingredient, which belongs to a class of
antibiotics called ‘cephalosporins’. The capsules are used to treat a variety of bacterial infections.
These include infections of the airways from nose to lungs, ear, bones and joints, skin and
urinary or reproduction systems, including inflammation of the prostate gland. They are also
used to treat dental infections.
Do not take Cefalexin Capsules if you have:
• an allergy (hypersensitivity) to the cephalosporin group of antibiotics, or to any of the
ingredients in the product (see section 6).
• porphyria; a hereditary metabolic disorder.
Take special care with Cefalexin Capsules if you have:
• an allergy to the penicillin group of antibiotics
• kidney problems
• inflammation of the large intestine, symptoms include: diarrhoea, pain and fever.

You should be aware that Cefalexin Capsules may give a false result for:
• certain blood tests (e.g. Coombs’ test)
• glucose urine test
Taking other medicines

Please inform your doctor if you are taking or have recently taken any other medicines, including
those obtained without a prescription.
In particular, tell your doctor if you are taking any of the following:
• other antibiotics, especially amphotericin, capreomycin, vancomycin, or an aminoglycoside –
a broad spectrum antibiotic (for example, gentamicin or neomycin)
• metformin for treatment of diabetes
• diuretics (water tablets) such as furosemide, bumetanide
• probenecid for gout.
• medication for leukaemia
Taking Cefalexin Capsules with food and drink

These capsules may be taken before, during or after your meals.
Pregnancy,breast-feeding and fertility
Ask your doctor for advice before taking any medicine if you are pregnant or planning to become
Cefalexin passes into breast milk, so tell your doctor if you are breast-feeding.
Driving and using machines
Cefalexin Capsules are not expected to affect your ability to drive or operate machinery.
Important information about some of the ingredients of Cefalexin Capsules
This medicine contains lactose. If you have been told by your doctor that you have an intolerance to some
sugars, contact your doctor before taking this medicine.

Always take this medicine exactly as your doctor or pharmacist has told you. Check with your
doctor or pharmacist if you are not sure.
Swallow the Capsules whole with water.
The recommended dose is:
Adults: The usual dose is 500mg every 8 hours, although your doctor may tell you to take 1g to
4g a day, split up in to smaller doses.
For skin and soft tissue infections, sore throat (Streptococcal pharyngitis), and mild,
uncomplicated urinary tract infections, the usual dose is 250mg every 6 hours or 500mg every 12
hours. For more severe infections, larger doses may be needed.

Elderly: You should take the normal adult dose, unless you have severe kidney problems, when
the maximum daily dose will be 500mg.
Use in children and adolescents: Your doctor will calculate the correct dose, depending on the
child’s weight. The usual daily dose is 25mg to 50mg for each kilogram of their weight and is
usually split up into smaller amounts taken ever 8 or 12 hours. If your child is taking Cefalexin
Capsules for ear infections, he or she may have to take 75mg to 100mg for each kilogram of their
weight, split up into smaller doses throughout the day.
If you take more Cefalexin Capsules than you should

Contact your doctor or nearest hospital casualty department IMMEDIATELY for advice if you
(or someone else) have swallowed too many capsules. Take this leaflet, any remaining capsules
and the pack they were in with you to the hospital. Symptoms of overdose include nausea,
vomiting, stomach upset, appearance of blood in the urine.

If you forget to take Cefalexin Capsules

If you miss a dose, take it as soon as you remember. If it is almost time to take the next dose,
skip the missed dose and carry on as before. DO NOT take a double dose to make up for a
forgotten dose.
If you stop taking your medicine
Keep taking this medicine until your doctor tells you to stop. DO NOT stop taking it just because you feel
better. If you stop taking this medicine, your infection may return or get worse.

If you have any further questions on the use of this product, ask your doctor or pharmacist.
Like all medicines, Cefalexin Capsules can cause side effects, although not everyone gets them.

STOP taking your medicine immediately and contact your doctor if you experience:
• rash, fever, itchy skin, swelling of the lips, eyes, tongue or difficulty breathing. These are
signs of an allergic reaction. Stop taking the capsules immediately
• severe skin rash with flushing, fever, blisters or ulcers in your nose or mouth, or redness,
peeling and swelling of the skin
• blood disorders (if you bruise more easily, have a sore throat, fever or a chill)
• severe diarrhoea containing blood or mucus. Colitis (inflammation of the colon) can also
occur during or after treatment
• liver damage, e.g. jaundice (yellowing of the skin and whites of eyes), hepatitis (swelling and
inflammation of the liver)
• nephritis (inflamed kidneys)
Tell your doctor if you suffer from any of the following for more than a few days:
• feeling or being sick, indigestion, stomach pain, diarrhoea
• Red wheals on the skin (urticaria)

• skin rashes
• dizziness, tiredness, headache, sleep disorders, nervousness
• feeling confused or agitated, hallucinations, extreme restlessness, hyperactivity
• painful or swollen joints, extreme muscle tension
• itching around the anus or genitals, inflamed vagina, discharge from the vagina
Laboratory Values
Slight elevations in some laboratory blood tests of liver function have been observed.
If any of the side effects gets serious, or if you notice any side effects not listed in this leaflet,
please tell your doctor.
Reporting of side effects
Also you can help to make sure that medicines remain as safe as possible by reporting any unwanted side
effects via the internet at Alternatively you can call Freephone 0808 100
3352 (available from 10 a.m. to 2 p.m. Mondays to Fridays) or fill in a paper form available from your
local pharmacy.

Do not store above 25°C.
Store Cefalexin Capsules in their original package and keep containers tightly closed.
Do not use the capsules after the expiry ‘EXP’ date which is printed on the carton (the expiry
date refers to the last day of the month stated).
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist
how to dispose of medicines no longer required. These measures will help to protect the
What Cefalexin Capsules contain

The active ingredient is cefalexin, 250mg or 500mg.
The other ingredients are lactose, magnesium stearate. The capsule shell contains black iron
oxide (E172), titanium dioxide (E171), erythrosin (E127), quinoline yellow (E104) and gelatin.
What Cefalexin Capsules look like and contents of the pack

Cefalexin Capsules are grey/orange capsules containing white powder and printed with ‘CHX
250’ (250mg) or ‘CHX 500’ (500 mg).
They are available in blister packs of 7, 14, 20, 21, 28, 30, 50, 56, 60, 100 or 500 capsules (not
all pack sizes may be marketed).
Marketing Authorisation holder
Athlone Pharmaceuticals Limited, Ballymurray, Co.Roscommon, Ireland.

Kent Pharmaceuticals Limited, Repton Road, Measham, DE12 7DT, U.K.
PL 30464/0074 and PL 30464/0075

This leaflet was last reviewed in 18th July 2014

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Source: Medicines and Healthcare Products Regulatory Agency

Disclaimer: Every effort has been made to ensure that the information provided here is accurate, up-to-date and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. This information has been compiled for use by healthcare practitioners and consumers in the United States. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective or appropriate for any given patient. If you have questions about the substances you are taking, check with your doctor, nurse or pharmacist.