Keflex (Oral)

Questions | Reviews **~

can keflex antibiotic suppression therapy cause an overgrowth of ringworm?

I had one ringworm on my leg to begin with, then I was started on keflex for antibiotic suppression of chronic UTI. My ringworm problem has spread like crazy despite antifungal sprays and creams, could this be due to the keflex?
by margarita Hamilton in Lubbock, Texas, 11/21/2005

Keflex (Oral) Drug and Prescription Information

Keflex (Oral)

Keflex (Oral) Medication Classification


Keflex (Oral) Brandname

Keflex, Keftab, Bio-Cef

Keflex (Oral) is used for the Treatment

Cephalexin (sef-a-LEX-in) Treats bacterial infections.Belongs to a class of drugs called cephalosporin antibiotics.

When To Not Use Keflex (Oral)

You should not use this medicine if you have ever had an allergic reaction to cephalosporin medicine such as Ceclor®, Velosef®, or Suprax®.

How Should You Use Keflex (Oral)

Capsule, Tablet, Liquid

  • Your doctor will tell you how much to take and how often.
  • You may take your medicine with food or milk to avoid stomach upset.
  • Shake the oral liquid well each time you use it.
  • Measure your oral liquid dose carefully with a measuring spoon or a medicine cup.
  • Keep taking your medicine unless your doctor tells you to stop, even if you feel better. If you stop taking this medicine too soon, your infection may come back.
  • If a dose is missed:
  • Take your medicine as soon as you remember that you have missed your dose.
  • If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose.
  • You should not use two doses at one time.

Proper Keflex (Oral) Storage

Store Keflex (Oral) at room temperature away from sunlight and moisture unless otherwise stated by manufacturer's instructions or labelling. Keep Keflex (Oral) and all medications out of the reach of children.

What To Avoid While Using Keflex (Oral)

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

  • Make sure your doctor knows if you are taking birth control pills or probenecid (Benemid®, ColBENEMID®) while taking cephalexin.

Keflex (Oral) Warnings

  • Before taking this medicine, let your doctor know if you have ever had an allergic reaction to penicillin medicines.
  • If you have severe diarrhea while taking cephalexin, check with your doctor before taking medicine to stop the diarrhea.
  • Cefalexin may cause incorrect results with some urine sugar tests used by patients with diabetes.
  • If you are pregnant or breastfeeding, talk to your doctor before taking this medicine.

Keflex (Oral) Side Effects

Call your doctor right away if you notice any of these side effects:

  • Rash or hives
  • Swelling of the face, throat, or lips
  • Wheezing or trouble breathing
  • Severe diarrhea (watery or bloody)
  • Severe stomach pain or vomiting
  • Blistering or peeling skin
  • If you notice these less serious side effects, talk with your doctor:
  • Mild diarrhea
  • Nausea
  • Sore mouth or tongue
  • Vaginal itching or discharge
  • Joint aches and pains

Keflex (Oral) Ratings

Overall Rating:



(based on 2 reviews)



Ease of Use:


Overall Satisfaction:




Keflex (Oral)

Effectiveness: *

Ease of Use: **

Overall Satisfaction: *


patsy harmon, Massachusetts, USA - 11/06/2010

My doctor prescribed me Keflex when I was suffering from an infected tooth. My face started to swell only thirty minutes after taking the initial dose and continued to get worse as I took the medication. This was the first time I have ever had an allergic reaction to an antibiotic. I had to follow up with steroids.

Keflex (Oral)

Effectiveness: ***

Ease of Use: ****

Overall Satisfaction: ***


kishore, macomb,mi - 10/17/2008

Having surgery due to an infection was one of the most painful experiences of my life - if not the most painful. I wasn't sure if the pain would ever leave. I'm currently on Day 4 of Keflex and it has been eased the pain a great deal. I hope its efficacy will be just as good.