Cefixime: Uses, Side Effects & Safety

What it is and what it's used for

Cefixime is an antibiotic that belongs to the cephalosporin group (third generation). It works by stopping the growth of bacteria, and it is used to treat a range of bacterial infections including urinary tract infections (UTIs), middle ear infections, throat and tonsil infections, bronchitis flare-ups, and uncomplicated gonorrhoea. It is also sometimes prescribed for typhoid fever when the bacteria are found to be sensitive to it.

In India, cefixime is a prescription medicine (Schedule H), which means you should only take it when a doctor has prescribed it after deciding that your infection is bacterial. Taking antibiotics without a prescription encourages antibiotic resistance — the bacteria learn to survive the medicine, making future infections harder to treat. Well-known Indian brands include Taxim-O and Zifi, though brands vary across regions.

How it works (simple language)

Cefixime kills bacteria by damaging their cell walls. Bacteria need strong cell walls to survive and multiply, so when the medicine weakens the wall, the bacteria die off. This helps your body's immune system clear the infection faster. It is thought to work against many common bacteria that cause ear, throat, urinary, and respiratory infections, but it has no effect on viruses, which is why it does not help colds or flu.

Dosage forms available in India (general info only)

Cefixime is commonly available in India as 100 mg and 200 mg tablets or capsules, dispersible tablets that dissolve in water, and dry syrup (powder that the pharmacist mixes with water to make a liquid, commonly 50 mg/5 ml and 100 mg/5 ml for children). It can usually be taken with or without food, but taking it with food may help if it upsets your stomach.

Never decide the dose yourself from this article. Always follow your doctor's prescription or the directions on the pack, and check with your pharmacist if you are unsure — especially for children, where the dose depends on the child's weight and age.

Side effects

Common: Diarrhoea is the most common side effect of cefixime. Other common effects include nausea, stomach pain, gas, headache, and dizziness. These are usually mild and go away as the body adjusts to the medicine.

Serious — seek medical care: Severe or watery diarrhoea (especially with blood or mucus), which can be a sign of a serious bowel infection; signs of an allergic reaction such as rash, itching, swelling of the face, lips or tongue, or difficulty breathing; unusual bleeding or bruising; dark urine or yellowing of the skin or eyes (possible liver problem); severe skin rash with blistering. Stop the medicine and get medical help right away if any of these occur.

Precautions and warnings

• Penicillin allergy: Tell your doctor if you have ever had an allergic reaction to penicillin or any cephalosporin antibiotic. People allergic to penicillin may also react to cefixime.
• Finish the full course: Do not stop the antibiotic early just because you feel better. Stopping early can let the infection return and make the bacteria resistant.
• Kidney problems: If you have kidney disease, tell your doctor — the dose may need adjustment because the medicine leaves the body through the kidneys.
• Severe diarrhoea: Mild loose motions can be common, but severe, watery, or bloody diarrhoea during or after the course needs medical attention.
• Not for viral infections: Cefixime does nothing for colds, flu, or most sore throats caused by viruses. Taking it "just in case" does more harm than good.
• Driving: If the medicine makes you dizzy, avoid driving or operating machinery until you feel normal again.
• Allergy to any ingredient: Check the pack for inactive ingredients if you have known allergies to colours or flavourings in syrups.

Interactions (general)

Antacids (medicines for acidity) can reduce how well cefixime is absorbed — if you take both, keep a gap of at least 2 hours between them. Cefixime may increase the effect of blood-thinning medicines like warfarin, so tell your doctor if you take any blood thinner. It can also affect some laboratory test results (such as urine sugar tests). Tell your doctor about ALL medicines you take, including herbal and ayurvedic products. Drinking alcohol does not have a direct serious interaction with cefixime, but alcohol can slow your recovery and worsen side effects like dizziness.

Pregnancy and breastfeeding (general guidance)

If you are pregnant, planning to become pregnant, or breastfeeding, talk to your doctor before taking cefixime. It is sometimes prescribed during pregnancy when the benefit is judged to outweigh the risk, but this decision must be made by your doctor. Small amounts may pass into breast milk, so get medical advice first.

Storage

Store at room temperature, away from moisture and direct sunlight. Keep the dry syrup powder dry until the pharmacist reconstitutes it; once mixed, the liquid usually needs to be used within a limited number of days (check the pack) and may need refrigeration — follow the label instructions. Keep all medicines out of the reach of children, and do not use the medicine after its expiry date.

When to see a doctor

See a doctor if: your symptoms do not improve within 2–3 days of starting the medicine, or get worse; you develop severe diarrhoea, rash, or signs of an allergic reaction; you have trouble breathing, swelling of the face or throat, or severe skin blistering — seek emergency care immediately. Also see a doctor if the same infection keeps coming back, as the bacteria may need a different treatment.

FAQs

1. Can I take cefixime for a cold or flu?

No. Colds and flu are caused by viruses, and cefixime only works against bacteria. Taking an antibiotic for a viral illness will not help you recover and can cause side effects and antibiotic resistance.

2. Why must I finish the full course even if I feel better?

Stopping early can leave some bacteria alive. These surviving bacteria can multiply again, bring the infection back, and become resistant to the antibiotic, making the infection harder to treat next time.

3. Is diarrhoea normal with cefixime?

Mild loose motions are common with cefixime and usually settle on their own. However, if the diarrhoea is severe, watery, bloody, or continues after you finish the course, see a doctor promptly.

4. Can I take cefixime with an antacid?

Antacids can reduce how much cefixime your body absorbs. If you need both, take them at least 2 hours apart, and ask your pharmacist for advice on timing.