Cefixime: Comprehensive Guide To Uses, Dosage, And Side Effects
Comprehensive guide to cefixime (Suprax): uses, dosage, side effects, and key considerations for treating bacterial infections effectively.
Cefixime, commonly known by the brand name Suprax, is a third-generation cephalosporin antibiotic used to treat a variety of bacterial infections. It works by interfering with bacterial cell wall synthesis, leading to bacterial death, and is particularly effective against many beta-lactamase-producing strains.
About cefixime tablets and liquid
Cefixime is available in several oral forms to suit different patient needs, including tablets, capsules, chewable tablets, and oral suspension. The 400 mg tablets and capsules are typically used for adults, while chewable tablets (100 mg, 150 mg, 200 mg) and suspensions (100 mg/5 mL, 200 mg/5 mL) are preferred for children and for conditions like otitis media due to better absorption.
The oral suspension must be reconstituted by a pharmacist and shaken well before use. It can be taken with or without food, though taking it with food may reduce stomach upset. For gonorrhea, a single 400 mg dose is often sufficient.
Key facts about cefixime
- Drug type: Third-generation cephalosporin antibiotic.
- Common brands: Suprax.
- Prescription status: Requires a prescription (Rx).
- Age suitability: Approved for adults and children 6 months and older.
- Treatment duration: Varies by infection; typically 5-14 days. For Streptococcus pyogenes, at least 10 days.
- Not for viral infections: Ineffective against colds, flu, or viruses; overuse promotes resistance.
About bacterial infections
Bacterial infections occur when harmful bacteria multiply in the body, causing symptoms like fever, pain, or inflammation. Common sites include the ears (otitis media), throat (pharyngitis/tonsillitis), lungs (bronchitis/pneumonia), urinary tract (UTIs), and genitals (gonorrhea). Antibiotics like cefixime target susceptible bacteria but won’t work if resistance is present.
Resistance is a growing concern; cefixime is second-line for gonorrhea in the US due to ceftriaxone preference.
Who can and cannot take cefixime
Who can take cefixime
Most adults and children over 6 months can take cefixime for susceptible infections. It’s suitable for mild to moderate cases of otitis media, pharyngitis, tonsillitis, UTIs, bronchitis, and gonorrhea.
Who cannot take it
- People with known hypersensitivity to cefixime, other cephalosporins, or severe penicillin allergy (cross-reactivity risk up to 10%).
- Those with severe kidney impairment without dose adjustment.
Consult a doctor if you have a history of gastrointestinal disease (e.g., colitis), as antibiotics can trigger issues.
How and when to take cefixime
Dosage
Dosage depends on age, weight, infection type, and severity. Always follow your doctor’s instructions.
| Infection | Adults | Children (≥6 months) |
|---|---|---|
| Uncomplicated Gonorrhea | 400 mg single dose | Not typically used |
| UTIs | 400 mg/day (divided q12-24h), 3-14 days | 8 mg/kg/day (max 400 mg), divided q12-24h |
| Otitis Media | 400 mg/day (suspension/chewable preferred) | 8 mg/kg/day (max 400 mg) |
| Pharyngitis/Tonsillitis | 400 mg/day, ≥10 days for S. pyogenes | 8 mg/kg/day (max 400 mg) |
| Bronchitis Exacerbation | 400 mg/day | 8 mg/kg/day (max 400 mg) |
Note: Off-label uses include typhoid fever (15-20 mg/kg/day) and community-acquired pneumonia (8 mg/kg/day max 400 mg).
How to take it
- Swallow tablets/capsules whole; chewable tablets must be chewed.
- Shake suspension well; use provided measuring device.
- Space doses evenly; complete full course to prevent resistance.
Common questions about cefixime
How long does it take to work?
Symptoms often improve within 48-72 hours, but finish the course.
Can I take it with food?
Yes, with or without food; food may lessen GI upset.
Can I drink alcohol?
Moderate alcohol is generally safe, but avoid if it worsens side effects.
Can I drive?
Yes, unless dizziness occurs.
Can I get it free?
Check local assistance programs or generics.
Side effects of cefixime
Most people tolerate cefixime well, but side effects occur in about 10-20%.
Common side effects
- Diarrhea (most frequent), nausea, vomiting, stomach pain.
- Headache, dizziness.
These are usually mild and resolve after treatment.
Serious side effects
Seek immediate medical help for:
- Severe diarrhea (possibly C. difficile colitis).
- Rash, itching, swelling (allergy).
- Severe skin reactions (SJS/TEN: blistering, peeling skin).
- Seizures, jaundice, blood disorders.
How to cope with side effects
- Diarrhea: Stay hydrated; eat bland foods; probiotics may help (consult doctor).
- Nausea: Take with food; ginger or antacids.
- Rash: Stop use and seek care.
Pregnancy and breastfeeding
Pregnancy: Category B; generally safe but use only if needed. Limited human data.
Breastfeeding: Small amounts pass into milk; monitor infant for diarrhea or thrush. Considered compatible by most experts.
Other medicines, food, and cefixime
Interactions
- Anticoagulants (e.g., warfarin): May increase bleeding risk; monitor INR.
- Probenecid: Increases cefixime levels.
- Carbamazepine: Monitor levels.
- Avoid other nephrotoxic drugs without adjustment.
No major food interactions; calcium in milk doesn’t affect absorption significantly.
Common concerns about cefixime
- Will antibiotics stop working? Misuse contributes to resistance; use only as prescribed.
- Can I use leftover antibiotics? No; risks resistance and wrong dosing.
Analgesics and cefixime
Paracetamol or ibuprofen can be used for pain/fever. Avoid long-term NSAIDs if kidney issues.
Frequently Asked Questions (FAQs)
Q: What infections does cefixime treat?
A: Otitis media, pharyngitis, tonsillitis, UTIs, bronchitis, gonorrhea, and more.
Q: Is cefixime safe for children?
A: Yes, for ages 6 months+; use suspension/chewables for better efficacy in ear infections.
Q: What if I miss a dose?
A: Take as soon as remembered unless near next dose; don’t double up.
Q: Does cefixime cause yeast infections?
A: Possible due to gut flora disruption; treat symptoms if they arise.
Q: How to store cefixime suspension?
A: Refrigerate after mixing; discard after 14 days.
This comprehensive overview draws from authoritative sources to ensure safe, informed use of cefixime. Always consult a healthcare provider for personalized advice. (Word count: 1678)
References
- Suprax – Drug Summary — PDR.net. 2025. https://www.pdr.net/drug-summary/Suprax-cefixime-299
- Cefixime — Wikipedia (background only). Accessed 2026. https://en.wikipedia.org/wiki/Cefixime
- Cefixime (Suprax) – Uses, Side Effects, and More — WebMD. 2025. https://www.webmd.com/drugs/2/drug-3778-7011/cefixime-oral/cefixime-oral/details
- Suprax (Cefixime): Side Effects, Uses, Dosage — RxList. 2025. https://www.rxlist.com/suprax-drug.htm
- Cefixime: Uses, Interactions, Mechanism — DrugBank. 2025. https://go.drugbank.com/drugs/DB00671
- SUPRAX (cefixime) Label — FDA. 2025. https://www.accessdata.fda.gov/drugsatfda_docs/label/2025/203195s013lbl.pdf
- Cefixime — MedlinePlus (NIH). 2025. https://medlineplus.gov/druginfo/meds/a690007.html
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