Klaricid Paediatric (Clarithromycin)

Clarithromycin is used to treat bacterial infections in pediatric patients across several common disease categories.

• Acute bacterial sinusitis: reduces infection and alleviates sinus symptoms.
• Community‑acquired pneumonia: effective against susceptible respiratory pathogens.
• Acute otitis media: clears middle‑ear bacterial infection.
• Skin and soft‑tissue infections: treats bacterial skin infections such as impetigo and cellulitis.

• Clarithromycin binds to the 50S subunit of bacterial ribosomes, inhibiting the translocation step of protein synthesis. This action prevents bacterial growth by blocking the formation of essential proteins, resulting in a bacteriostatic effect against susceptible Gram‑positive and some Gram‑negative organisms.

Clarithromycin may cause a range of adverse reactions, most of which are mild and transient.

Common Side Effects

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

Serious or Rare Side Effects

• Anaphylaxis: severe allergic reaction requiring immediate medical attention.
• Clostridioides difficile‑associated diarrhea: severe colitis.
• Hepatotoxicity: elevated liver enzymes or jaundice.
• QT interval prolongation: risk of cardiac arrhythmias.
• Stevens‑Johnson syndrome: severe skin and mucous membrane reaction.
• Cardiac arrhythmias: irregular heart rhythms in susceptible individuals.

Before prescribing Klaricid Paediatric, consider the following safety measures.

• Assess renal function: adjust use in patients with impaired kidney function.
• Monitor liver enzymes: watch for signs of hepatotoxicity during therapy.
• Avoid in known macrolide hypersensitivity: discontinue if allergic reaction occurs.
• Use caution with QT‑prolonging agents: monitor cardiac status.
• Discuss pregnancy and breastfeeding: evaluate risks with the prescriber.
• Store at room temperature: keep in the original container, protect from moisture and light.

Clarithromycin can interact with several medicines, requiring attention to avoid adverse outcomes.

Major Interactions (Avoid)

• Cisapride: risk of serious cardiac arrhythmias.
• Pimozide: may cause QT prolongation and arrhythmias.
• Ergot alkaloids: increased risk of ergotism.
• Theophylline: elevated plasma levels leading to toxicity.

Moderate Interactions (Monitor Closely)

• Statins (especially simvastatin): increased risk of myopathy.
• Warfarin: potential enhancement of anticoagulant effect.
• Carbamazepine: reduced clarithromycin levels, decreasing efficacy.
• Phenytoin: may alter drug metabolism, requiring dose adjustments.