If you’ve been prescribed cefdinir, the first question on your mind is probably “how much should I take?” You’re not alone. Cefdinir is a common antibiotic used for infections like sinusitis, bronchitis, and skin infections. The dose changes based on age, infection type, and kidney function, so let’s break it down in plain language.
For most adults, the usual dose is 300 mg taken every 12 hours, or 600 mg once daily. The exact schedule depends on the infection:
If you have normal kidney function, stick to these numbers. Missed a dose? Take it as soon as you remember, unless it’s almost time for the next one. In that case, skip the missed dose – don’t double up.
Kids get a weight‑based dose. The common recommendation is 7 mg per kilogram of body weight every 12 hours, not exceeding 300 mg per dose. For a 20‑kg child, that works out to about 140 mg twice daily.
Kids under 12 months or those with compromised kidney function need a lower dose, usually 14 mg/kg once daily. Always ask your doctor or pharmacist if your child falls into these groups.
People with kidney disease may need the dose reduced or spaced out. Your doctor will calculate a safe amount based on your lab results.
Here are a few practical tips to keep the antibiotic working:
If you notice severe diarrhea, rash, or difficulty breathing, call your doctor right away – those could be signs of an allergic reaction.
Bottom line: most adults take 300 mg twice a day, kids get a weight‑based dose, and adjustments are needed for kidney issues. Stick to the schedule, finish the course, and you’ll give the infection the best chance to clear.
Thinking about using cefdinir for bronchitis? Here’s a detailed look at how cefdinir works, when it’s appropriate, important dosage facts, typical side effects, and some surprising things you might not expect. Get real-world insights, clear guidance, and helpful tips on when cefdinir is the right choice for bronchitis and what to watch out for.
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