Klacid

Clarithromycin, the active ingredient in Klacid, is a macrolide antibiotic presented as an oral dosage form for oral use. It treats a range of bacterial infections in adults and children when prescribed by a healthcare professional.

GNH USA supplies Klacid as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Clarithromycin is a macrolide antibiotic used to treat infections caused by susceptible bacteria.

- Community‑acquired pneumonia: eradicates the causative organisms and improves respiratory function. - Acute bacterial sinusitis: reduces sinus inflammation and clears infection. - Acute exacerbations of chronic bronchitis: helps restore airway patency and reduces bacterial load. - Skin and soft‑tissue infections: eliminates pathogenic bacteria in dermal lesions. - Helicobacter pylori eradication: part of combination therapy to achieve bacterial clearance.

Clarithromycin may cause a range of adverse reactions, from mild to severe.

Common Side Effects: - Nausea: mild to moderate upset stomach. - Diarrhea: loose stools, sometimes watery. - Abdominal pain: cramping or discomfort. - Altered taste: metallic or bitter sensation. - Headache: mild to moderate intensity. - Vomiting: occasional episodes.

Serious or Rare Side Effects: - Anaphylaxis: severe allergic reaction requiring immediate care. - QT interval prolongation: risk of cardiac arrhythmias. - Clostridioides difficile‑associated diarrhea: severe colitis. - Hepatic enzyme elevation: potential liver injury. - Stevens‑Johnson syndrome/toxic epidermal necrolysis: severe skin reactions. - Cardiac arrhythmias: irregular heartbeat beyond QT issues.

Before prescribing clarithromycin, clinicians should evaluate patient‑specific risk factors.

- Renal or hepatic impairment: adjust therapy based on function. - QT prolongation risk: avoid in patients with known cardiac conduction disorders. - Known hypersensitivity: do not use in individuals allergic to macrolides. - Concomitant CYP3A4 substrates: monitor for increased exposure. - Pregnancy and lactation: assess benefit‑risk, as safety data are limited. - Store at room temperature: keep in original container, protect from moisture and light.

Clarithromycin interacts with several medicines; awareness of interaction severity guides clinical decisions.

Major Interactions (Avoid): - Cisapride, pimozide: risk of fatal arrhythmias. - Strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole): may cause toxic clarithromycin levels. - Colchicine in renal failure: heightened risk of toxicity. - Simvastatin or lovastatin: increased risk of rhabdomyolysis. - Ergot alkaloids: precipitate severe vasospasm.

Moderate Interactions (Monitor Closely): - Warfarin: possible INR elevation. - Carbamazepine, phenytoin: reduced clarithromycin efficacy. - Digoxin: increased serum concentrations. - Oral contraceptives: decreased hormonal effectiveness. - Theophylline: heightened plasma levels.