Makovan (Cefaclor Monohydrate)

Cefaclor is indicated for bacterial infections affecting several organ systems, primarily targeting Gram‑positive and some Gram‑negative organisms.

• Acute bacterial sinusitis: reduces infection symptoms and promotes recovery.
• Acute otitis media: eradicates causative pathogens and alleviates ear pain.
• Uncomplicated urinary tract infection: clears urinary pathogens and resolves dysuria.
• Skin and soft‑tissue infections: treats cellulitis and wound infections caused by susceptible bacteria.

• Cefaclor belongs to the second‑generation cephalosporin class and exerts its antibacterial effect by binding to penicillin‑binding proteins on the bacterial cell wall. This binding inhibits the final transpeptidation step of peptidoglycan synthesis, weakening the cell wall and leading to osmotic lysis of susceptible bacteria. The drug displays activity against a range of Gram‑positive and selected Gram‑negative organisms.

Cefaclor may cause a variety of adverse reactions, ranging from mild to severe.

Common Side Effects

• Nausea: mild stomach upset that may occur after dosing.
• Diarrhea: loose stools, often self‑limiting.
• Vomiting: occasional emesis.
• Abdominal pain: cramping or discomfort in the stomach area.
• Rash: skin redness or mild itching.
• Headache: transient head pain.

Serious or Rare Side Effects

• Anaphylaxis: severe allergic reaction with breathing difficulty and shock.
• Stevens‑Johnson syndrome: rare skin blistering and mucosal involvement.
• Clostridioides difficile‑associated diarrhea: severe colitis after antibiotic use.
• Serum sickness‑like reaction: fever, joint pain, and rash.
• Hemolytic anemia: destruction of red blood cells.
• Elevated liver enzymes: signs of hepatic irritation.

When prescribing Cefaclor, clinicians should consider several safety precautions to minimize risks.

• Assess allergy: verify no known hypersensitivity to cephalosporins or penicillins.
• Monitor renal function: adjust dose in patients with impaired kidney function.
• Use cautiously in hepatic impairment: consider reduced clearance in liver disease.
• Avoid in patients with a history of severe drug reactions: discontinue if rash or anaphylaxis occurs.
• Review concomitant medications: be aware of potential interactions that may affect efficacy or toxicity.
• Store at room temperature: keep in the original container, protect from moisture and direct sunlight.

Cefaclor can interact with other medicines, altering its effectiveness or increasing adverse effects.

Major Interactions (Avoid)

• Probenecid: decreases renal excretion, raising cefaclor plasma levels.
• Oral contraceptives: may reduce hormonal efficacy, increasing risk of unintended pregnancy.
• Warfarin: potentiates anticoagulant effect, raising bleeding risk.

Moderate Interactions (Monitor Closely)

• Aminoglycosides: combined nephrotoxic potential requires renal monitoring.
• NSAIDs: concurrent use may impair renal function, especially in at‑risk patients.
• Antacids containing aluminum or magnesium: can reduce cefaclor absorption if taken simultaneously.