Biaxin (Clarithromycin): Uses, Dosage, Safety and Pharmacy Information
Biaxin contains clarithromycin, a macrolide antibiotic used for selected susceptible bacterial infections. It may be prescribed for certain respiratory, skin, ear, sinus, or other infections, and within combination regimens for specific indications. It does not treat viral colds or influenza. A clinician chooses it after considering infection type, culture information when available, allergies, local resistance, liver and kidney function, and concurrent medicines.
Before you buy Biaxin, verify the exact formulation, strength, quantity, and duration on the prescription. The Biaxin price can vary by immediate-release tablet, extended-release tablet, suspension, quantity, coverage, and pharmacy. Do not substitute an extended-release product for an immediate-release product or select a strength based on price.
Indications
Clarithromycin is used only when antibiotic treatment is appropriate. Follow the prescribed schedule and complete the course unless the prescriber changes it. Taking leftover tablets, sharing medicine, skipping doses, or stopping early may leave infection undertreated and contribute to resistance. Contact the clinic if symptoms worsen, return, or do not improve within the timeframe given.
Dosage
Take Biaxin exactly as directed. Immediate-release tablets are commonly available as 250 mg and 500 mg; extended-release tablets may be available as 500 mg; oral suspension strengths can vary. You can buy Biaxin 250 mg, buy Biaxin 500 mg, or buy Biaxin XL 500 mg only when the exact product matches the active prescription. Swallow extended-release tablets whole. Measure liquid with a calibrated device and follow the pharmacist’s storage instructions.
Take a missed dose when remembered unless the next dose is near; do not double. The Biaxin price should be compared only for the same formulation and prescribed quantity. Ask the pharmacist before crushing, splitting, or changing any tablet form.
Safety Information
Do not use Biaxin if you have a serious allergy to clarithromycin, erythromycin, or another macrolide. Tell the prescriber about heart rhythm problems, QT prolongation, low potassium or magnesium, liver or kidney disease, myasthenia gravis, pregnancy, breastfeeding, and previous antibiotic-associated colitis. Clarithromycin can cause serious liver injury and may worsen myasthenia gravis.
Possible effects include nausea, abdominal pain, diarrhea, altered taste, headache, and rash. Seek urgent care for fainting, rapid or irregular heartbeat, severe dizziness, jaundice, dark urine, severe or bloody diarrhea, facial or throat swelling, blistering rash, or breathing difficulty. Report persistent palpitations or muscle weakness promptly.
Interactions
Clarithromycin has numerous interactions because it inhibits CYP3A. Important examples include certain statins, colchicine, warfarin, digoxin, carbamazepine, benzodiazepines, calcium-channel blockers, antiarrhythmics, and medicines that prolong QT. It must not be combined with several contraindicated drugs, including certain ergot medicines and selected statins. Give every clinician and pharmacist a full medicine and supplement list before starting it.
FAQ
Can I buy Biaxin without a prescription? No. It is prescription-only.
Why does the Biaxin price vary? Formulation, strength, quantity, coverage, and pharmacy affect cost.
Can I use it for a cold? No. Colds are usually viral.
Disclaimer
This page is general education and does not replace clinician assessment, official labeling, or pharmacist counseling. Seek urgent care for serious allergy, cardiac symptoms, or severe adverse effects.
