Cefalexin for infection

About cefalexin

Cefalexin is a type of antibiotic used to treat bacterial infections such as urinary tract infections, skin infections, chest och throat infections, öroninfektioner och dental infections.

It is suitable for adults and children and can be taken during pregnancy.

Some people who are allergic to penicillin antibiotics may not be able to take cefalexin, so make sure your doctor knows if you have ever had an allergic reaction to any other antibiotic.

Cefalexin treats an infection by killing the bacteria that are causing it.

Common side effects of cefalexin are:

• Diarré.

• Känna sig illamående (illamående).

• Indigestion.

• Stomach ache.

• Svampinfektion.

You will find a full list in the manufacturer's information leaflet supplied with the medicine.

The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.

If you experience any other symptoms which you think may be due to the antibiotic, please speak with your doctor or pharmacist for further advice.

Some medicines are not suitable for people with certain conditions. Before starting cefalexin it is important that your doctor knows:

• Om du någonsin har haft en allergisk reaktion mot ett läkemedel. Det är särskilt viktigt att du berättar för din läkare om du har haft en dålig reaktion på ett penicillin- eller cefalosporinantibiotikum.

• Om du har några problem med hur dina njurar fungerar.

• If you are pregnant, trying for a baby or breastfeeding. Although cefalexin is not known to be harmful to babies, it is still important that you tell your doctor if you are expecting or breastfeeding a baby.

• Om du tar eller använder några andra läkemedel. Detta inkluderar alla läkemedel du tar som finns att köpa utan recept, samt växtbaserade och komplementära läkemedel.

• Read the leaflet inside the pack before starting cefalexin. It explains how the antibiotic works and lists possible side effects.

• Take cefalexin 2-4 times a day, as directed by your doctor. Check the label for your exact dose and timing.

• For children: if using liquid cefalexin, carefully measure each dose as instructed.

• Treatment usually lasts 5-7 days, but your doctor may adjust this. Always follow their advice.

• For UTI prevention: you may take one dose daily, usually in the evening.

• You can take cefalexin before or after food, but it may work a bit faster before meals.

• Space doses evenly through the day and complete the full course, even if you feel better.

• If you miss a dose, take it as soon as you remember. Do not take twice to make up for a missed one.

• Tell your doctor or healthcare provider if you’re taking cefalexin before any operation or medical test, as it can affect some test results.

• Antibiotics can sometimes cause thrush (oral or vaginal). If this happens, speak to your doctor or pharmacist.

• If you take the contraceptive pill and have vomiting or diarrhoea for more than 24 hours while on antibiotics, the pill may be less effective. Ask your doctor or pharmacist about extra contraception. No extra precautions are needed if symptoms last less than 24 hours.

• Cefalexin can stop the oral typhoid vaccine from working properly. Tell the person giving you any vaccines that you’re taking this antibiotic.

• Förvara alla läkemedel utom räckhåll och synhåll för barn.

• Store tablets and capsules in a cool, dry place, away from direct heat and light.

• If you have been given liquid medicine, store it in a refrigerator. It will have been made up freshly by the pharmacy and lasts for 14 days, so please remember to check the expiry date, and do not use it after this date.

How quickly does cefalexin work?

Cefalexin usually starts to work within an hour after taking the first dose. Most people notice improvement in symptoms, such as reduced pain, fever, or redness, within the first 1-2 days of treatment.

Is cefalexin safe to use during pregnancy?

Yes, cefalexin is considered safe to use during pregnancy as there is no evidence that it causes harm to the baby. However, always let your doctor or midwife know you are pregnant before taking cefalexin.

Does cefalexin contain penicillin?

No, cefalexin does not contain penicillin. However it is a cephalosporin antibiotic, which is chemically related to penicillin. People who are allergic to penicillin may also be allergic to cefalexin, so it is important to inform your doctor if you have a penicillin allergy before taking cefalexin.

Can you drink alcohol with cefalexin?

Yes, you can drink alcohol with cefalexin. However, it is advised to only drink in moderation as alcohol may increase side effects such as stomach upset, dizziness, or drowsiness.

Can cefalexin cause a rash?

Yes, cefalexin can cause a rash as a side effect and is usually a sign of an allergic reaction. If you develop a mild rash, contact your doctor for advice. If you have trouble breathing or swelling of the face, lips, tongue, or throat, seek medical help immediately.