I got a bad yeast infection from taking cephalexin 500mg should I stop taking it? Asked 27 May 2012 by dream123 Updated 28 May 2012 Topics infections, pain, cephalexin KEFLEX® (cephalexin) Capsules. DESCRIPTION. KEFLEX® (cephalexin) Capsules, USP is a semisynthetic cephalosporin antibacterial drug intended for oral administration. Went to doctors and they told me I had a UTI so they prescribed me cephalexin, I took it 3 times a day for 7 days did not end up in the ER but, I had a very very hard time breathing but it eventually went away. For the treatment of upper respiratory tract infections, including tonsillitis and/or pharyngitis secondary to Streptococcus pyogenes (i.e., primary rheumatic fever prophylaxis). Side effects of Cephalexin for dogs and cats rarely occur, but may include loss of appetite, vomiting, diarrhea, drooling, rapid breathing, excitability and fever in cats. 1 Marquette General Pharmacy – DLP Renal Dosing Protocol Drug Usual Dose CrCl Adjusted (ml/min) Dose Hemodialysis/ Peritoneal Dialysis/ Comments The acute inflammation not complicated by the additional types of bacterial microflora: Amoxicillin 500 mg 3 times a day with equal intervals between the drug intakes. Keflex cephalexin capsules bp 500mg. Also associated with cephalexin and alcohol ssri use is keflex a condition called capsules persistent pulmonary hypertension of the cephalexin newborn. Helpful, trusted answers from doctors: Dr. Shenenberger on antibiotics 3 times per day: Generally most antibiotics are taken one hour before food or two hours after food; some are taken with food. You do not need to get up in the middle of the night to take the antibiotic; morning , afternoon and before bed is fine. Please check with your md to. Cephalexin is one of many cephalosporin antibiotics used to fight bacterial infections and prevent further growth of the offending bacteria. Allergy to this drug is considered rare, however, people who are allergic to penicillin are more likely to have a cephalexin allergy.