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
UTI and Nausea: Unfortunately yes. But, so can the antibiotics you are taking. This should not be long lasting so not a reason to stop yet. But, if you do not have Meclizine in your medicine cabinet you can get this "anti-nausea" and "anti-dizzy" medicine anywhere you buy vitamins and over the counter medications. Meclizine is very effective and a nice thing to have ready for times like this. ...Read moreSee 1 more doctor answer
I am on Keflex (liquid) for a UTI. It is giving me an upset stomach, burning in my esophagus and nausea. I've been taking a probiotic. What can I do?!
Are you supposed to feel sick on your period because i feel really sick or is that from taking keflex my antibiotics?
Dr rxed cephalexin 500mg, 3x a day for 10 days for infected wound. I also take Zofran regularly for anxiety induced nausea. Do these meds interact?
No interaction: Take both drugs as directed. There is no interaction between them. If any doubt remains, contact the doctor(s) who prescribed them. ...Read more
I'm taking cephalexin for a sty in my eye and I now have nausea. I have a history of gi problems, how can I ease the nausea feeling?
I was put on cephalexin for an outer ear infection1 day ago. I have nausea and fatigue. Am i just having side affects or the flu?
Dentist has me taking cephalexin 50pmg & hydrocod/aceta 5-325mg. Is it normal to be very nauseas & feel funny hot & stomach upset sunlight bothers me?
An old stand by: Keflex has been around as an antibacterial almost since the first the beginning of medicine. It has withstood the test of time, and continues today to be effective against an array of bacterial organisms, but it's efficacy is failing against some of the newer "super bugs." still a good choice, still a first line drug, and yes it is usually GI tolerant, but everyone is an individual. ...Read more
Likely, not certain: The majority of people who are told they are allergic to penicillin are not actually so (they get rashes for other reasons, e.g.). Of those that are allergic, about 70% or more will lose the allergy after about 10 years. If you are still allergic, there is about a 10% chance of cross-reaction to 1st-gen cephalosporins like keflex. An allergist can perform testing to judge your risk for a reaction. ...Read more
Maybe: Penicillins (like amoxil) & cephalosporins (like keflex) are both beta-lactam antibiotics named because of their ringed chemical structure. Allergy to penicillins is sometimes directed against this ring, and an allergic reaction may also occur if a similar antibiotic is taken. It is estimated that about 10% of penicillin-allergic patients are also allergic to cephalosporins like keflex. ...Read moreSee 1 more doctor answer