Cefdinir

What is Cefdinir?

Cefdinir is an oral antibiotic that helps treat nasal infections.

Nasal infections are often caused by the bacteria Staphylococcus aureus, which typically lives harmlessly on the outer surface of your skin. When it enters your body, though, such as through a cut or break in the skin, it can result in serious infections.

Antibiotics are not always needed for mild infections, but if your symptoms are severe or persist for more than a week, it’s important to seek medical attention.

How does Cefdinir work?

Cefdinir binds to penicillin-binding proteins (PBPs), which has the effect of stopping the bacteria from being able to make cell walls. Without a cell wall, the bacteria cannot survive, eventually leading to their death.^[1]

What doses of Cefdinir are there?

Cefdinir tablets are only available in one strength of 300mg. The usual dose is 300 mg once or twice daily for five to ten days.

How to take Cefdinir

Swallow one capsule with plenty of water. You can take it with or without a meal, but taking it on an empty stomach increases the risk of side effects. The typical dosage is 300mg twice a day for around 10 days. Try to evenly space the capsules throughout the day, taking them at least 12 hours apart.

You should avoid taking iron supplements while taking Cefdinir, as iron can reduce the effectiveness of the medication. If you need to take iron, wait at least two hours before taking Cefdinir.

Always complete the full course of antibiotics, even if you start to feel better. Stopping the treatment early can cause the infection to return and may increase the risk of microbial resistance.

How long does Cefdinir take to work?

Cefdinir starts to work within a couple of hours, but it will take a few days to notice an improvement in your symptoms. If your symptoms don’t improve after three days, let your doctor know. They might recommend trying an alternative treatment or increasing your dose.

What should I do if I make a mistake when taking Cefdinir?

If you take more Cefdinir than prescribed, contact your doctor or local medical department straight away. You might get symptoms like an upset stomach, nausea, diarrhoea or vomiting.

If you forget to take a dose, don’t worry. Simply take the missed dose as soon as you remember, unless it’s close to your next scheduled dose. In that case, skip the missed dose. Taking doses close together can increase the risk of side effects.