Keflex

(cephalexin)

3.7/ 5 average rating with 686 reviewsforKeflex
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Treats bacterial infections.

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Our bottom line

Keflex (cephalexin) is good for treating many bacterial infections, and is available as a generic.

Quick facts about Keflex
  • Drug class: Infection
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (cephalexin)
Prices and discounts
Lowest price for 40 500mg capsules
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$9.27
  • Price before coupon
    $26.68
  • Lowest price with coupon
    $9.27
    65% savings

Upsides

  • Available in generic.
  • Available in different forms: tablet, capsule, and suspension.
  • Used to treat many types of bacterial infections.
  • Can be taken with or without food.
  • Generally few side effects compared with other antibiotics.

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What to expect from Keflex, on one page

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People’s experience with Keflex

686reviews so far. What do you think?

Downsides

  • Can cause diarrhea.
  • You may need to take Keflex (cephalexin) 2 to 4 times a day, which can be hard to remember.
  • If you're allergic to penicillins or other antibiotics, you might not be able to take this medicine.

Get the newsletter!

Sign up and get Pill Talk, the latest in health & medicine news from Iodine

Get our free fact sheet

What to expect from Keflex, on one page

Download Fact Sheet
Prices and discounts
Lowest price for 40 500mg capsules
Determining your location...
$9.27
  • Price before coupon
    $26.68
  • Lowest price with coupon
    $9.27
    65% savings
How it works

Keflex (cephalexin) is an antibiotic. It kills bacteria by preventing them from making their own protective covering.

Quick facts about Keflex
  • Drug class: Infection
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (cephalexin)

Dosage forms

  • Pill
  • Liquid
People’s experience with Keflex

686reviews so far. What do you think?

What to expect when you take Keflex (cephalexin) for Infection

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Side effect rates for Keflex (cephalexin)

Risks and Warnings for Keflex (cephalexin)

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  • As with all antibiotics, Keflex (cephalexin) can cause diarrhea. It usually goes away after you're done with the medicine. Taking yogurt or probiotic supplements a few hours after you take the medication may help. Rarely, some people can have a severe form of diarrhea that happens a few weeks after you take Keflex (cephalexin). The symptoms include severe pain with loose or bloody stools. Talk to your doctor right away if this happens.

Common concerns from people taking Keflex (cephalexin)

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Pregnancy
Food
  • Can take with or without food.
  • Can be taken with or without food.