Cephalexin is a generic prescription drug that treats infections. Only the oral capsule comes in a brand-name version called Keflex. Cephalexin can cause side effects ranging from mild to serious.

Cephalexin is a generic drug that’s prescribed for certain bacterial infections in adults and children. As with other drugs, cephalexin can cause side effects, such as diarrhea, nausea, or vomiting.

C. diff is a horrible disease that can cause significant morbidity. It can and often does recur and kills around 30,000 Americans every year. We have made progress in prevention and treatment, but ...