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๐ Cefazolin Powder for Injection 1000 mg
๐งช Nature / Drug Class
- First-generation cephalosporin antibiotic
- Beta-lactam class โ acts by inhibiting bacterial cell wall synthesis
๐ฉบ Purpose / Indications
Cefazolin 1 g is commonly used for:
- Skin and soft tissue infections
- Respiratory tract infections
- Urinary tract infections (UTIs)
- Bone and joint infections
- Biliary tract infections
- Septicemia
- Surgical prophylaxis โ especially before GI, cardiac, orthopedic, or gynecological surgeries
โ๏ธ Advantages
โ๏ธ Broad coverage against gram-positive organisms (like Staph and Strep)
โ๏ธ Also covers some gram-negative bacilli (e.g., E. coli)
โ๏ธ Reliable prophylaxis in surgical settings
โ๏ธ Lower risk of resistance compared to penicillins in certain cases
๐ Dosage & Administration
- Route: IV or IM
- Usual adult dose:
- 1 g IV every 8 hours for moderate to severe infections
- Surgical prophylaxis: 1 g IV 30โ60 minutes prior to incision; may repeat intraoperatively if surgery is prolonged
- Dose adjustment required in renal impairment
๐ฆ Common Packaging
- Vial with 1000 mg (1 g) sterile powder
- Requires reconstitution with:
- Sterile water for injection or normal saline for IV
- Lidocaine may be used for IM to reduce pain
โ ๏ธ Patient Advice / Precautions
- Avoid if penicillin or cephalosporin allergy is present
- Monitor for signs of hypersensitivity or rash
- Renal function should be checked before and during therapy
- Not useful against MRSA or anaerobes
๐ข Possible Side Effects
- Local: Pain at injection site (especially IM)
- GI: Nausea, diarrhea
- Allergic: Rash, itching, rarely anaphylaxis
- Rare: Clostridioides difficile-associated diarrhea
๐ง Storage
- Unopened vials: store at 20โ25ยฐC (room temperature)
- Reconstituted solution:
- Stable for 24 hours at room temp
- Up to 7 days if refrigerated (2โ8ยฐC)
- Do not freeze
- Protect from light and moisture

