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Dosing Information for Cefazolin

The dose of cefazolin your healthcare provider recommends will vary, depending on various factors, such as:
  • Your age
  • Your weight
  • The type and seriousness of the infection being treated
  • How well your kidneys are functioning.
  • Other medical conditions you may have.
(Click Cefazolin Dosage for more information.)

Drug Interactions

Cefazolin may react with a few other medicines (see Drug Interactions With Cefazolin).

What If I Overdose on This Drug?

An overdose of this medication can cause serious problems, such as seizures. If you think you have been given too much cefazolin, alert the medical staff right away.
(Click Ancef Overdose for more information.)

Storage Information

Cefazolin comes in vials of the dry medication to be mixed with an appropriate liquid before use. Unmixed cefazolin vials should be stored at room temperature. Storage recommendations after reconstitution may vary, depending on what type of liquid is used and the particular product used; however, in general, reconstituted cefazolin is good for 24 hours at room temperature and 7 to 10 days under refrigeration.

What Should I Do If I Miss a Dose of Cefazolin?

If you miss an appointment to receive a cefazolin dose, contact your healthcare provider right away. He or she will tell you what to do next. Try not to miss doses, as this increases the chance of developing an infection that is resistant to antibiotic treatment.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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