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Common Brand Name: Keflex

Proper Use & Dosage Information

Medically reviewed by Jessica Swirble, PharmD
Last updated on 5/6/2024

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What is the typical starting dose for cephalexin?

Cephalexin is available in the following forms:

  • Oral capsules (250 mg, 500 mg, 750 mg)

The typical starting dose of cephalexin varies depending on the type of infection being treated, its severity, and individual patient factors. It is important to follow your healthcare provider's instructions regarding dosage and administration.

For uncomplicated skin and soft tissue infections, the typical starting dose may be:

  • 500 mg taken orally every 12 hours for 7 to 14 days.

For urinary tract infections (UTIs), the typical starting dose may be:

  • 250 mg taken orally every 6 hours for 7 to 14 days.

For respiratory tract infections, such as pneumonia, your healthcare provider may prescribe higher doses and longer treatment durations.

Your healthcare provider will determine the most appropriate dose and duration of treatment based on your medical history, current medications, and response to the medication.

Cephalexin should be taken exactly as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment without consulting your provider.

If you have any questions about your dosage, contact your healthcare provider. If you want to talk to a provider right away, book an online doctor appointment on Sesame to discuss your concerns.

What should I do if I miss a dose?

If you miss a dose, take it as soon as you remember it. If it's almost time for another dose of cephalexin, skip the missed dose and take your next dose as scheduled. Do not take or apply a double dose of cephalexin.

What do I do if I'm feeling better?

Do not discontinue or alter your cephalexin dosage without consulting with your healthcare provider. Follow your healthcare provider's instructions regarding dosing and other recommendations for taking cephalexin.

How should I store cephalexin?

Store cephalexin as directed by your healthcare provider or pharmacist. Proper storage is essential to maintain the medication's effectiveness. Cephalexin should be stored at room temperature, away from excessive heat, light, and moisture.

Keep the medication out of the reach of children and ensure that the container is tightly closed.