Cefim-3 (Cefixime) Antibiotic

Indications

Cefim-3 is an orally active third-generation cephalosporin antibiotic used to treat acute infections caused by susceptible microorganisms. It is highly stable in the presence of beta-lactamase enzymes.

Infections treated include:

• Upper Respiratory Tract Infections (URTI): E.g., otitis media, and other URTI where resistance is suspected.

• Lower Respiratory Tract Infections: E.g., bronchitis.

• Urinary Tract Infections: E.g., cystitis, cystourethritis, pyelonephritis.

Pharmacology

Cefixime is a bactericidal antibiotic that kills bacteria by interfering with the synthesis of the bacterial cell wall. Its high stability against Beta-lactamase enzyme means it is effective against many organisms that are resistant to penicillins and some other cephalosporins.

• Absorption: Approximately 40% to 50% is absorbed, regardless of whether it is taken with or without food.

Dosage and Administration

The usual treatment course is 7 days, which may be extended up to 14 days if needed.

The safety and efficacy have not been established in children aged less than 6 months.

Contraindications, Precautions, and Side Effects

• Contraindications: Patients with known hypersensitivity to cephalosporin antibiotics.

• Precautions & Warnings:

  • Use with caution in patients sensitive to penicillin, due to potential partial cross-allergenicity.

  • Administer with caution in patients with markedly impaired renal function.

  • Treatment may cause Clostridium difficile overgrowth, leading to antibiotic-associated diarrhea.

  • Care should be taken when given to patients receiving anticoagulant therapy, as increases in prothrombin times have been noted.

• Side Effects: Generally mild and self-limiting. Most frequent are diarrhea and stool changes. Other effects include nausea, abdominal pain, headache, dizziness, and hypersensitivity reactions (e.g., rash).

• Pregnancy & Lactation: Should be used only if clearly needed, as adequate human studies are lacking. Use caution in nursing mothers.

Overdose: No specific antidote exists. Treatment should be symptomatic and supportive.

Therapeutic Class: Third generation cephalosporin antibiotic.