Meropenem Steriscience (Meropenem Trihydrate)

Meropenem is a broad‑spectrum carbapenem used for serious bacterial infections that require intravenous therapy.

• Complicated intra‑abdominal infection: provides bactericidal activity against mixed flora in intra‑abdominal sepsis.
• Complicated urinary tract infection: eradicates resistant Gram‑negative and Gram‑positive pathogens.
• Bacterial meningitis: penetrates the cerebrospinal fluid to treat central nervous system infections.
• Severe pneumonia: covers typical and atypical organisms causing hospital‑acquired pneumonia.
• Sepsis: offers rapid bacterial clearance in systemic infection.

• Meropenem binds to penicillin‑binding proteins (PBPs) on the bacterial cell wall, inhibiting the final transpeptidation step of peptidoglycan synthesis. This disruption weakens the cell wall, leading to osmotic instability and bacterial cell death. The drug is resistant to most β‑lactamases, allowing activity against a wide range of Gram‑negative, Gram‑positive, and anaerobic organisms.

Adverse reactions may occur with any intravenous antibiotic and should be monitored during therapy.

Common Side Effects

• Diarrhea: mild to moderate gastrointestinal upset.
• Nausea: occasional feeling of queasiness.
• Vomiting: transient episodes.
• Rash: mild skin erythema.
• Elevated liver enzymes: transient increase in transaminases.
• Injection site pain: discomfort at the infusion site.

Serious or Rare Side Effects

• Anaphylaxis: severe allergic reaction requiring immediate medical attention.
• Seizures: especially in patients with renal impairment or CNS disorders.
• Clostridioides difficile colitis: antibiotic‑associated colitis.
• Hemolytic anemia: rare immune‑mediated red cell destruction.
• Thrombocytopenia: low platelet count.
• Acute kidney injury: potential renal function decline.

Use meropenem only under medical supervision, considering patient‑specific risk factors.

• Renal impairment: adjust dose based on creatinine clearance.
• CNS disorders: monitor for seizures, especially in patients with a history of epilepsy.
• Allergy history: avoid if known hypersensitivity to carbapenems or β‑lactams.
• Pregnancy and lactation: weigh benefits against potential risks; limited data available.
• Concomitant nephrotoxic drugs: monitor renal function closely.
• Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Meropenem may interact with other medicines, altering efficacy or safety.

Major Interactions (Avoid)

• Valproic acid: may reduce serum valproate levels, risking seizure breakthrough.
• Probenecid: can increase meropenem plasma concentrations, raising toxicity risk.

Moderate Interactions (Monitor Closely)

• Aminoglycosides: additive nephrotoxicity; monitor renal function.
• Diuretics: may affect electrolyte balance; watch for renal changes.
• Anticoagulants: possible alteration of INR; check coagulation parameters.
• Other β‑lactams: potential for additive toxicity; assess clinical need.