Ciprofloxacin (Cipro) and cefalexin (Keflex) target different bacteria. Ciprofloxacin, a fluoroquinolone, effectively combats gram-negative bacteria like E. coli, Salmonella, and Pseudomonas aeruginosa, often causing urinary tract, respiratory, and gastrointestinal infections. It also works against some gram-positive bacteria, but less reliably.
Keflex, a first-generation cephalosporin, primarily targets gram-positive bacteria such as Staphylococcus aureus and Streptococcus pyogenes, frequently responsible for skin infections, strep throat, and pneumonia. Its effectiveness against gram-negative bacteria is limited.
Therefore, the choice depends heavily on the suspected infection. A doctor determines the appropriate antibiotic based on the identified bacteria and the patient’s overall health. Cipro is not a substitute for Keflex and vice-versa; they have distinct applications. Self-treating can be harmful; always consult a medical professional for diagnosis and treatment.
Ciprofloxacin’s broader spectrum includes some atypical bacteria, while Keflex’s spectrum is narrower but still potent against common skin and respiratory pathogens. This difference highlights the need for accurate bacterial identification before prescribing.
