Cephalexin
Brand: Keflex
No boxed warning on the current FDA label.
- Caution
- Allergic reactions, with a small cross-reactivity risk after a penicillin allergy; C. difficile diarrhea.
- Storage
- Reconstituted suspension: refrigerate and discard after 14 days.
Common side effects
- Diarrhea
- Nausea
- Stomach upset
- Rash
Key interactions
- May increase effect of blood thinners
- Probenecid raises its levels
- Raises metformin levels
Counseling points
- Finish the full course
- Take with food if it upsets stomach
- Report severe or watery diarrhea
- Report rash or trouble breathing
- Refrigerate the liquid form
- Tell the pharmacist about any penicillin allergy
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