Drug Interactions With Keflex (Cont.)

 
Metformin
If metformin and Keflex are combined, your body may metabolize the drugs differently than intended, which can significantly increase the amount of metformin in your system. Your healthcare provider may choose to monitor your progress more closely or adjust your dosage accordingly, depending on your particular situation.
 
Typhoid Vaccine
If you are taking Keflex and receive a live, attenuated typhoid vaccine, the vaccine may lose some if its effectiveness. This, in turn, could leave you unprotected against typhoid.
 

Drug Interactions With Keflex: A Summary

It is possible that not all drug interactions with Keflex were listed in this article. Therefore, you should talk with your healthcare provider about any specific interactions that may apply to you.
 

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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;