Meropenem B. Braun Melsungen (Meropenem Anhydrous)

Meropenem is a broad‑spectrum carbapenem antibiotic used to treat severe bacterial infections in hospitalized patients.

• Complicated intra‑abdominal infections: provides bactericidal activity to resolve infection and prevent spread.
• Complicated urinary tract infections: eliminates resistant Gram‑negative pathogens causing pyelonephritis and cystitis.
• Hospital‑acquired pneumonia: targets multidrug‑resistant organisms responsible for lower respiratory tract infection.
• Ventilator‑associated pneumonia: achieves rapid bacterial clearance in intubated patients.
• Sepsis and septic shock: delivers systemic coverage against a wide range of pathogens.
• Meningitis: penetrates the cerebrospinal fluid to treat bacterial meningitis caused by susceptible organisms.

• Meropenem binds with high affinity to penicillin‑binding proteins (PBPs) on bacterial cell walls, inhibiting the final transpeptidation step of peptidoglycan synthesis. This disruption weakens the cell wall, leading to osmotic lysis and bactericidal activity against a broad spectrum of Gram‑positive and Gram‑negative bacteria, including many resistant strains.

Common Side Effects

• Nausea: mild to moderate gastrointestinal discomfort.
• Diarrhea: may range from loose stools to mild colitis.
• Rash: skin erythema or pruritus.
• Headache: transient cephalic pain.
• Elevated liver enzymes: transient increase in transaminases.
• Phlebitis at injection site: local irritation.

Serious or Rare Side Effects

• Seizures: especially in patients with renal impairment or high doses.
• Anaphylaxis: severe hypersensitivity reaction requiring immediate medical attention.
• Clostridioides difficile‑associated diarrhea: potentially life‑threatening colitis.
• Stevens‑Johnson syndrome or toxic epidermal necrolysis: severe skin reactions.
• Renal toxicity: impaired kidney function in susceptible individuals.
• Neutropenia: marked reduction in white blood cell count.

Meropenem should be used with caution in specific clinical situations.

• Renal function: adjust dose in patients with impaired renal clearance.
• Allergy: avoid in individuals with known hypersensitivity to carbapenems or other beta‑lactam antibiotics.
• Seizure risk: monitor patients with central nervous system disorders or receiving high doses.
• Pregnancy: use only if the potential benefit justifies the potential risk; data are limited.
• Drug interactions: review concomitant medications for possible interactions.
• Store at 2-8°C: keep refrigerated, protect from light, do not freeze.

Meropenem may interact with several concomitant medicines.

Major Interactions (Avoid)

• Valproic acid: co‑administration can markedly reduce valproate levels, risking loss of seizure control.
• CNS stimulants: may increase the risk of seizures.

Moderate Interactions (Monitor Closely)

• Aminoglycosides: monitor renal function for additive nephrotoxicity.
• Loop diuretics: watch electrolytes and renal parameters.
• Warfarin: periodic INR monitoring is advised due to potential alteration of anticoagulant effect.