I've been diagnosed with a kidney infection and I was prescribed this antibiotic on friday. Vomited 3 hrs after taking it saturday and have been feeling on the verge of being sick a couple of hours after taking it each time. I've stopped taking it now because it makes me feel so awful and hope to get a different type when I see the Gp on monday. Has anyone else had this reaction to this antibiotic and were you given anything else instaed of it?