Use Keflex with caution in the elderly; they may be more sensitive to its effects. Use Keflex with extreme caution in children younger than 10 years old who have diarrhea or an infection of the stomach or bowel. Pregnancy and breast-feeding: If you become pregnant, contact your doctor. You...
published clinical studies of cephalexin, 433 (62%) were 65 and over. No overall differences in safety or effectiveness were observed between these subjects and younger subjects, and other reported clinical experience has not identified differences in responses between the elderly and younger patients....