Cephalexin
Brand: Keflex
Common side effects
- Diarrhea
- Nausea
- Stomach upset
- Rash
Key interactions & cautions
- Caution if penicillin allergy (cross-reactivity)
- May increase effect of blood thinners
- Probenecid raises its levels
- Take separate from certain antacids
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
High-yield study aid for exam prep — not a substitute for the package insert or a pharmacist’s dispensing reference.