Question: is doxycycline the same as keflex?
Answer: Keflex and Daxbia are brand names for cephalexin. Doxycycline and Keflex are different types of antibiotics. Doxycycline is a tetracycline antibiotic and Keflex is a cephalosporin antibiotic. Side effects of doxycycline and Keflex that are similar include diarrhea or loose stools, nausea, abdominal pain, or vomiting.