Buy Biaxin
Biaxin

$2.04
Category
Active Ingredient
Delivery
Airmail (14-21 days) | EMS trackable (5-9 days)
Prescription
Issued on site / Included
Availability
In Stock
Product is shipped in a fully discreet envelope with no content disclosure, including all required documentation inside

Biaxin Properties

Active Ingredients
Primary Category
Therapeutic Class
Pharmacological Class
Macrolide Antibiotic
Minor Side Effects
Moderate Side Effects
Dosage Forms
Tablets, Oral Suspension
Administration Route
Oral
Mechanism of Action
Stops bacteria from growing by interfering with their ability to make proteins, which are necessary for their survival and reproduction.
Prescription Status
Rx
Patient Summary
Treats various bacterial infections, including respiratory and skin infections. It is also used in combination therapy for certain ulcers.
Onset Time
Several hours
Duration
12 hours
Storage Instructions
Store at room temperature, away from moisture
Age Restrictions
Dosage may be adjusted for children. Consult doctor.
Pregnancy Use
Consult doctor before use during pregnancy or breastfeeding
Alternative Drugs

About Biaxin

Biaxin is a prescription-only macrolide antibiotic marketed in Australia that contains the active ingredient clarithromycin. It belongs to the class of antibiotics that inhibit bacterial protein synthesis and is used to treat a variety of respiratory, skin and soft-tissue infections, as well as part of combination therapy for Helicobacter pylori eradication. While its primary role is to clear bacterial pathogens, clinicians sometimes explore its anti-inflammatory properties in conditions that extend beyond conventional indications.

What is Biaxin?

Biaxin is the brand name for a tablet formulation of clarithromycin, a synthetic macrolide developed and commercialised by Takeda Pharmaceuticals. The product received approval from the Therapeutic Goods Administration (TGA) in Australia and is listed as a Schedule 4 medication, meaning it can be dispensed only with a prescriber’s authority. In clinical practice Biaxin is considered bio-equivalent to generic clarithromycin tablets, offering the same systemic exposure at doses of 250 mg and 500 mg. Its availability in a convenient pill form supports adherence across the typical 7- to 14-day treatment courses required for most infections.

How Biaxin Works

Clarithromycin exerts its antibacterial effect by binding reversibly to the 50 S subunit of the bacterial ribosome. This binding blocks the translocation step of protein elongation, effectively halting synthesis of essential proteins needed for bacterial growth. At therapeutic concentrations the drug is primarily bacteriostatic, but higher plasma levels can achieve bactericidal activity against susceptible organisms.

Pharmacokinetic features that underpin its clinical utility include rapid oral absorption, with peak plasma concentrations reached within 2-3 hours after ingestion. Food modestly enhances absorption and reduces gastrointestinal irritation, a factor often leveraged in dosing recommendations. Clarithromycin has an elimination half-life of approximately 3-4 hours in healthy adults, extending to 5-7 hours in the presence of hepatic impairment because it is metabolised predominantly by the cytochrome P450 3A4 (CYP3A4) pathway. Metabolites are eliminated mainly via bile, with only about 20 % of the dose recovered unchanged in urine. The drug’s interaction potential stems from its capacity to inhibit CYP3A4, thereby raising concentrations of co-administered substrates such as statins, certain anti-arrhythmics and some oral contraceptives.

Why Biaxin is Used for Antibiotic Conditions

  • Community-acquired pneumonia (CAP): Clarithromycin covers the typical pathogens-Streptococcus pneumoniae, Haemophilus influenzae and atypical organisms like Mycoplasma pneumoniae. Guidelines from the Australian Therapeutic Guidelines recommend macrolides as first-line agents for otherwise healthy adults when atypical coverage is desired.
  • Acute bacterial sinusitis: The drug’s high tissue penetration into sinonasal mucosa and activity against Streptococcus spp. make it a convenient oral option, especially when patients cannot tolerate amoxicillin-clavulanate.
  • Acute exacerbations of chronic obstructive pulmonary disease (AECOPD): Clarithromycin’s ability to target common COPD pathogens (e.g., H. influenzae, Moraxella catarrhalis) and its anti-inflammatory effects help reduce symptom duration and prevent hospitalization.
  • Skin and soft-tissue infections (SSTIs): For infections caused by methicillin-sensitive Staphylococcus aureus or streptococcal species, oral clarithromycin provides an effective alternative to clindamycin, particularly when beta-lactam allergies are present.
  • Helicobacter pylori eradication: Used in combination with a proton-pump inhibitor and amoxicillin (or metronidazole), clarithromycin’s potent activity against H. pylori forms the backbone of the standard triple-therapy regimen endorsed by the Australian Gastroenterology Society.

In each of these scenarios the drug’s pharmacodynamic profile-broad antimicrobial spectrum, reliable tissue distribution, and once- or twice-daily dosing-aligns with guideline-driven treatment pathways, often positioning Biaxin as a first-or-second-line choice. Compared with other macrolides (e.g., azithromycin), clarithromycin offers a slightly broader gram-positive coverage but requires a shorter course to achieve equivalent clinical cure rates.

Off-Label and Investigational Uses of Biaxin

Research has explored clarithromycin’s immunomodulatory properties in chronic inflammatory lung diseases such as diffuse panbronchiolitis and non-cystic-fibrosis bronchiectasis. Small randomized trials suggest a reduction in exacerbation frequency when low-dose macrolides are administered over several months. However, these indications are not approved by the TGA, and long-term use is associated with heightened risk of antimicrobial resistance and cardiac arrhythmias.

Off-label use should only be considered under the supervision of a qualified healthcare provider.

Is Biaxin Right for You?

Biaxin is most appropriate for adults who require treatment of the infections listed above and who have no contraindications to macrolides. Patients with significant hepatic dysfunction may need dose adjustments because clearance is impaired. Since clarithromycin inhibits CYP3A4, clinicians must review concomitant medicines-especially statins, certain anti-epileptics and anticoagulants-to avoid toxic interactions.

Pregnancy falls under Category C in Australia; animal studies have shown adverse effects, but human data are insufficient, so the drug is generally avoided unless the potential benefit outweighs the risk. Breast-feeding mothers should also exercise caution because clarithromycin passes into milk in low concentrations. Elderly patients often have reduced hepatic reserve and polypharmacy, making drug-interaction screening essential.

As noted in the medication information, individuals with a known hypersensitivity to macrolides, a history of QT prolongation, or those taking concomitant drugs that markedly increase the QT interval should not initiate therapy with Biaxin.

Taking Biaxin Effectively

  • Timing: Take the tablet with a full glass of water. For the 500 mg strength, the usual regimen is twice daily (every 12 hours); the 250 mg strength is taken once daily.
  • Food: A light meal enhances absorption and mitigates stomach upset, so most prescribers advise dosing with food.
  • Missed dose: If a dose is forgotten within 6 hours, take it as soon as remembered. Skip the missed dose if it is nearing the time of the next scheduled dose; do not double-dose.
  • Alcohol: Moderate consumption does not markedly affect clarithromycin levels, but excessive alcohol can exacerbate hepatic strain and increase the risk of liver enzyme elevation.
  • Travel: When travelling to remote areas, carry the full prescribed quantity in original packaging to avoid interruptions. Store tablets at room temperature, away from moisture and direct sunlight.

Completing the entire prescribed course, even if symptoms improve early, is vital to prevent bacterial resistance and relapse.

Understanding Side Effects and How to Manage Them

  • Gastro-intestinal upset (diarrhoea, nausea, abdominal pain): These arise from clarithromycin’s effect on gut motility and its interaction with the normal flora. Taking the tablet with food, staying well-hydrated, and using over-the-counter loperamide for mild diarrhoea can provide relief. Probiotic supplementation during treatment may help preserve a balanced microbiome.
  • Taste disturbance (metallic or bitter taste): This sensory alteration is linked to the drug’s impact on gustatory receptors. Chewing sugar-free gum or sucking on citrus lozenges can lessen the perception.
  • Elevated liver enzymes: Clarithromycin is metabolised hepatically, and occasional enzyme rises are asymptomatic. Routine liver function testing is advisable for patients on prolonged therapy or those with pre-existing liver disease. If transaminases exceed three-times the upper limit of normal, discontinuation should be considered.
  • Cardiac effects (QT prolongation, arrhythmia): The drug can block potassium channels, extending the repolarisation phase. Patients with a known prolonged QT interval, electrolyte disturbances (especially hypokalaemia), or concurrent use of other QT-prolonging agents should monitor cardiac status. Any episode of palpitations, syncope, or atypical chest discomfort warrants immediate medical attention.
  • Serious allergic reactions (Stevens-Johnson syndrome, anaphylaxis): Though rare, such reactions stem from immune-mediated hypersensitivity. Immediate cessation of Biaxin and urgent emergency care are required if widespread rash, facial swelling or breathing difficulty develop.

Most side effects resolve within a few days of stopping therapy; however, persistent or severe symptoms must be reported promptly.

Buying Biaxin from Our Online Pharmacy

Why Choose Our Service?

Access to Biaxin can be limited in remote Australian regions where local pharmacies carry low stock of brand-name antibiotics. Our online pharmacy bridges that gap, delivering the medication directly to your doorstep while maintaining strict prescription verification procedures.

Quality & Safety

We partner with licensed international pharmacies that operate under rigorous regulatory frameworks recognised by the Australian Therapeutic Goods Administration. Each batch of Biaxin is sourced from Takeda-approved manufacturers and undergoes third-party quality testing to confirm potency and purity.

Pricing & Access

Because Biaxin is a brand product, its price can be higher than generic clarithromycin. Through our platform you can benefit from negotiated wholesale rates, saving up to 30 % compared with standard retail pharmacies. For patients who prefer a lower-cost option, we also stock approved generic equivalents that offer identical bioavailability.

Discreet Delivery

Orders are packed in unbranded, tamper-evident containers to protect privacy. Express shipping typically arrives within seven business days, while standard delivery reaches most Australian postcodes within three weeks.

Frequently Asked Questions

  • Can I take Biaxin with antacids? Antacids containing aluminium or magnesium may reduce clarithromycin absorption. It is best to separate the dosing interval by at least two hours to ensure optimal drug levels.

  • Is a probiotic necessary during treatment? While not required, a probiotic can help maintain gut flora balance, especially for patients who experience frequent diarrhoea. Choose a product with Lactobacillus or Bifidobacterium species.

  • How does Biaxin differ from azithromycin? Both are macrolides, but clarithromycin (Biaxin) has a slightly longer half-life and stronger activity against certain gram-positive organisms. Azithromycin offers once-daily dosing and fewer drug-interaction concerns because it is a weaker CYP3A4 inhibitor.

  • What should I do if I miss a dose while travelling abroad? Take the missed dose as soon as you remember, provided at least six hours have not passed since the scheduled time. Otherwise, skip it and continue with your regular schedule to avoid double-dosing.

  • Can Biaxin be used to prevent infections after surgery? Current Australian guidelines reserve prophylactic antibiotics for specific surgical categories and recommend shorter-acting agents. Though clarithromycin has been studied for prophylaxis in some orthopedic procedures, it is not a standard recommendation.

  • I have a statin prescription; is it safe to start Biaxin? Clarithromycin can raise serum concentrations of certain statins (especially simvastatin and lovastatin), increasing the risk of muscle toxicity. Your prescriber may lower the statin dose or select a statin less affected by CYP3A4 inhibition, such as pravastatin.

  • Does Biaxin affect hormonal contraceptives? Because clarithromycin can modestly increase estrogen levels, it may reduce the effectiveness of combined oral contraceptives. Using a backup method (e.g., condoms) during treatment and for seven days after completion is advisable.

  • Is it safe to breastfeed while on Biaxin? Small amounts of clarithromycin pass into breast milk, but the exposure is generally considered low. Nonetheless, if your infant is premature or has liver disease, discuss alternatives with your healthcare provider.

  • Can I switch from generic clarithromycin to Biaxin mid-course? Both formulations are bio-equivalent, so switching does not require dose adjustment. Consistency in pill strength (250 mg vs 500 mg) should be maintained to avoid confusion.

  • Why do I feel a metallic taste after each dose? The taste alteration is a known, reversible side effect caused by clarithromycin’s interaction with taste receptors. Rinsing the mouth with water after swallowing may lessen the sensation.

Glossary

Macrolide
A class of antibiotics that contain a large macrocyclic lactone ring; they inhibit bacterial protein synthesis by binding to the 50 S ribosomal subunit.
CYP3A4
An enzyme in the liver responsible for metabolising many drugs; inhibition of CYP3A4 can increase plasma levels of co-administered medications.
QT prolongation
An elongation of the heart’s electrical repolarisation interval on an ECG, which can predispose to dangerous arrhythmias such as torsades de pointes.

Disclaimer

The information provided about Biaxin is intended for general educational purposes and does not replace professional medical consultation. All treatment decisions, including those concerning off-label applications, should be made under the supervision of a qualified healthcare provider. Readers are assumed to be responsible adults capable of making informed health choices. Our online pharmacy offers a convenient access pathway for individuals who may encounter limited availability through traditional brick-and-mortar outlets or who are seeking more affordable options. Always discuss any medication changes with your doctor before starting, adjusting, or discontinuing therapy.

External Resources about Biaxin


Information Prepared By

Sarah Jones
Tosin (Olalekan) Olaluwoye, MD, PhD