Meropenem Acs Dobfar (Meropenem Anhydrous)

• Meropenem is a carbapenem antibiotic used to treat serious bacterial infections by inhibiting cell‑wall synthesis.
• Complicated intra‑abdominal infections: achieves clinical cure and microbiological eradication in hospitalized patients.
• Complicated urinary tract infections: provides rapid bacterial clearance and symptom resolution.
• Nosocomial pneumonia: effective against resistant pathogens causing hospital‑acquired lung infections.
• Septicemia: offers broad‑spectrum coverage to control systemic bacterial spread.
• Hospital‑acquired bacterial infections: delivers broad‑spectrum activity against Gram‑negative and Gram‑positive organisms resistant to other agents.

• Meropenem binds with high affinity to penicillin‑binding proteins (PBPs) in bacterial cell walls, inhibiting the final transpeptidation step of peptidoglycan synthesis. This disruption weakens the cell wall, leading to osmotic instability, cell lysis, and bacterial death. Its broad spectrum includes many Gram‑negative, Gram‑positive, and anaerobic organisms, and it resists most β‑lactamases, making it effective for multidrug‑resistant infections.

Meropenem may be associated with a range of adverse reactions, varying in frequency and severity.

Common Side Effects

• Nausea: mild to moderate discomfort in the stomach.
• Vomiting: occasional expulsion of stomach contents.
• Diarrhea: loose stools that may be self‑limiting.
• Rash: skin redness or mild itching.

Serious or Rare Side Effects

• Seizures: especially in patients with pre‑existing CNS disorders.
• Anaphylaxis: severe allergic reaction requiring immediate medical attention.
• Clostridioides difficile‑associated colitis: severe diarrhea due to bacterial overgrowth.
• Renal impairment: reduced kidney function or acute kidney injury.

• When using Meropenem, clinicians should consider several safety measures.
• Renal function: adjust dose in patients with impaired renal function.
• Hypersensitivity: discontinue immediately if an allergic reaction occurs.
• Seizure risk: monitor patients with a history of seizures or CNS disorders.
• Pregnancy: use only if the potential benefit justifies the potential risk to the fetus.
• Concomitant valproic acid: may increase the risk of seizures.
• Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Meropenem can interact with other medicines, requiring careful management.

Major Interactions (Avoid)

• Valproic acid: increased risk of seizures when combined.
• Other carbapenems: concurrent use may reduce efficacy of each.
• Nephrotoxic agents (e.g., aminoglycosides): heightened risk of kidney injury.

Moderate Interactions (Monitor Closely)

• Loop diuretics: may affect renal clearance of meropenem.
• Probenecid: can raise meropenem plasma concentrations.
• Oral contraceptives: potential reduction in contraceptive effectiveness.