Doctor insights on:
Neither: Both antibiotics are effective bactericidal drugs. Keflex causes time dependent killing while Cipro (ciprofloxacin) causes concentration dependent killing. The 2 drugs have different antibacterial spectrums. In general Cipro (ciprofloxacin) has better activity against gram negative bacteria like pseudomonas while Keflex is more active against gram positive bacteria like staph. And strep. Species. ...Read more
No: If you are truly allergic to penicillin, you should avoid all penicillin derivatives and the first generation cephalosporins. Keflex is a first gen. Cephalosporin and may cross react with penicillin. See a board certified allergist to help you determine if penicillin is a true allergy for you. ...Read more
Last year i had anaphylaxis from keflex, 6 days after my flu shot. Does being allergic to keflex mean the flu shot isn't safe for me?
- Talk to a doctor live online for free
- Keflex safe pregnant
- Is keflex safe to take while pregnant?
- Is keflex safe to take while breastfeeding?
- Ask a doctor a question free online
- Keflex and breastfeeding
- Keflex uses
- Keflex interactions
- Allergy to keflex
- Talk to a infectious disease specialist online