Keflex
Keflex is a commonly used brand-name cephalosporin antibiotic that treats various bacterial infections, including urinary tract infections (UTIs), ear infections, sinus infections, respiratory tract infections, skin infections, and bone infections. It belongs to a group of antibiotics called cephalosporins, which work by killing bacteria and stopping the infection.
Keflex is safe for use in adults and children 1 year of age and older. It is typically taken by mouth 2 to 4 times daily and comes in affordable generic forms, such as capsules, tablets, and liquid suspensions.
Purchase Keflex on Universal Drugstore and save today!
Keflex Prescription Required
Currently Unavailable
Keflex Prescription Required
Cephalexin Prescription Required
Cephalexin Prescription Required
Marketed as Auro-Cephalex in Canada
Marketed as Cephalexin in United Kingdom
Don't see what you're looking for? Contact us
Important information about Keflex
How does Keflex work?
The active ingredient in Keflex is cephalexin. As mentioned above, it belongs to a wider group of antibiotics called cephalosporins, and these work by stopping the bacteria from forming a protective outer layer (cell wall).
How do you use Keflex?
Follow all directions given to you by your doctor and read all documents provided, including the full Prescribing Information, FDA-approved product Labeling, Instructions for Use, and Medication Guide before using Keflex. However, the following is a synopsis of the general guidelines for the use of Keflex:
- Take Keflex exactly as your doctor tells you. Follow the instructions on your prescription and read any provided guides or information.
- Only use Keflex for conditions approved by your doctor.
- Finish the full course of the medicine, even if you feel better. Stopping early can make infections harder to treat in the future. Keflex does not work for viral infections like the flu or a cold.
- Never share Keflex with anyone, even if they have similar symptoms.
- Keflex can affect some medical test results. Inform any doctor treating you that you are using it.
What are the side effects of Keflex?
The most common side effects of Keflex include:
- Diarrhea.
- Nausea or vomiting.
- Indigestion or stomach pain/stomach cramps.
- Dizziness.
- Fatigue or tiredness.
- Headache.
- Confusion.
- Joint pain.
- Yeast infection.
Some individuals may experience serious side effects while using Keflex. These side effects may require immediate medical attention. If you experience any of the following, contact your healthcare provider or seek emergency medical help:
- Allergic reactions: may include hives, skin rash, blisters, swelling of the lips, tongue, or face, and trouble breathing.
- Severe diarrhea caused by C. difficile infection: symptoms can include foul-smelling diarrhea, fever, nausea, abdominal pain, and very frequent bowel movements (up to 15 times a day).
These are not all of the possible side effects of Keflex. You should always seek medical advice from your healthcare provider for any questions or concerns about your medical condition or treatment. Read all patient information, medication guides, or drug information sheets that come with this medication. You can also report adverse effects to the Food and Drug Administration at www.fda.gov/medwatch or 1-800-FDA-1088.
What are the warnings or precautions for Keflex?
Before starting Keflex, it is crucial to discuss any existing health conditions with your healthcare provider. You should be sure that your healthcare provider is aware of all your medical conditions, including if you have:
- Avoid Keflex if you’re allergic to it or similar antibiotics or have ever had a serious allergic reaction. Let your doctor know if you’re allergic to penicillin or other antibiotics.
- Inform your doctor if you have kidney disease, liver disease, diabetes, or intestinal issues like colitis.
- Take Keflex for the full-time your doctor prescribes, even if you feel better. It doesn’t work for viral infections like colds or the flu.
- If you’re pregnant or breastfeeding, talk to your doctor before using Keflex.
Are there any contraindications with Keflex?
Contraindications refer to health conditions or circumstances where taking a medication could be unsafe. Inform your healthcare provider if any of the following apply to you, as Cephalexin may not be safe in these cases:
- A severe allergy to cephalosporin antibiotics or beta-lactam antibiotics.
How long does it take Keflex to work?
Keflex typically starts working within 1 to 2 hours after you take it, but you may not feel noticeable improvement for a day or two. For some infections, it may take a few days to see significant results. It's important to finish the full course of medication, even if you start feeling better sooner.
What interacts with Keflex?
When Keflex is taken with other prescription drugs, over-the-counter medications, vitamins, and supplements, it may change how they work or increase the frequency or severity of side effects. Make sure that you tell your healthcare professional about anything that you are taking to avoid any negative drug interactions, including:
- Metformin.
- Probenecid.
- Blood thinners.
What doses of Keflex are available?
Keflex (cephalexin) is available in capsules, tablets, and liquid dosage forms.
For adults and children over 15 years old, the typical dose is 250 mg every 6 hours or 500 mg every 12 hours. You would typically take it for 7 to 14 days. For more serious infections, you may need a higher dose, up to 4 grams per day. However, your healthcare provider will provide the dose correct for you.
For a missed dose, take the medicine as soon as you remember, but if it's almost time for your next dose, skip the missed dose. Do not take two doses at once.
How do I store Keflex?
Store the medication at room temperature, away from moisture, light, or heat as well as out of reach of children.
Which pharmaceutical company manufactures Keflex?
Keflex is manufactured by Eli Lilly and Company.
Is there a generic version of Keflex?
There are several generic versions available of Keflex with the active ingredient of cephalexin.
How do I stop taking Keflex?
Do not stop taking your medication, even if you feel better. Finish the course your healthcare provider suggested unless they inform you to stop taking the drug.
Can Keflex be used if I am pregnant?
Keflex (cephalexin) is generally considered safe to use during pregnancy. However, it should only be used if deemed necessary by a healthcare provider. Talk to your doctor if you are already pregnant or if you have any plans to become pregnant. They will know or recommend what is best for you.
Can Keflex be used if I am breast feeding?
It is safe to take Keflex while breastfeeding. Only small amounts of the medication pass into breast milk, so it usually does not cause any side effects in your baby. Talk to your doctor if you are already breastfeeding or if you have any plans to breastfeed. They will know or recommend what is best for you.
Universal Drugstore Loyalty Rewards
Referral Rewards
Earn $50 by referring a friend to Universal Drug Store. $50 for you, and $50 for your friend.
Click to referLoyalty Rewards
Join our loyalty program, and earn loyalty reward points on each purchase to save even more.
Click to joinImportant information about buying Keflex from UniversalDrugstore™
What happens after I place my order for Keflex with Universal Drugstore?
Once you complete your order, we process, verify, and dispatch your medication. You’ll receive email updates at each stage, including tracking details once your order ships. If any additional documentation is needed (such as a valid prescription), we’ll contact you promptly. Once approved, your order is charged and delivered directly to your doorstep.
How long does it take to process and deliver my order for Keflex?
Orders are typically processed within 1–3 business days once all required documents are received and approved. Standard delivery times range from 10–18 business days, depending on your location.
Can I track my order of Keflex?
Yes! Once your medication ships, you will receive an email with tracking information so you can monitor your shipment every step of the way.
What should I do if there is an issue with my order for Keflex?
Our Customer Care team is available 24/7 to assist with any order-related concerns or questions. If you experience delays, missing items, or need support, contact us using the details provided in your confirmation email.
How is my medication packaged to ensure privacy and safety?
All orders are shipped in discreet, plain packaging to protect your privacy. Medications are securely packaged to prevent damage and ensure they arrive in top condition.
Does Universal Drugstore ship medications that require refrigeration or special handling?
Yes. We use cold-chain shipping methods to safely transport temperature-sensitive medications, ensuring they maintain proper storage conditions throughout delivery.
What are the shipping costs, and does Universal Drugstore offer free delivery?
Shipping costs vary depending on your location and shipping method. Free shipping promotions may be available—check the checkout page for the latest offers. Orders above $100 going to a US destination will receive free shipping.
Does Universal Drugstore accept Medicare or Medicaid for prescriptions?
Currently, we do not bill Medicare or Medicaid directly. However, we provide detailed receipts and documentation that you can submit to your insurance provider for potential reimbursement.
Can I use private health insurance to cover my prescription from Universal Drugstore?
Universal Drugstore does not bill private health insurance directly, but we provide a detailed invoice that you can submit to your insurer for possible reimbursement. Many insurers will accept Unievrsal Drugstore’s documents, but if you have any questions, check with your insurance company prior to purchasing.
How secure is my payment information when ordering from Universal Drugstore?
We use advanced SSL encryption and secure payment processing to ensure that all transactions are 100% protected against fraud and unauthorized access.
Can I order a generic alternative to Keflex?
Universal Drugstore offers many generic alternatives that provide the same active ingredients at a lower cost. Search for your medication and compare pricing for generic vs. brand-name options. Generic availability depends on the medication.
Do I need a prescription to order Keflex?
If your medication requires a prescription, you must upload it online, via email, or fax. Over-the-counter (OTC) medications do not require a prescription. All prescription medication purchases require a valid and approved prescription.
Can I order multiple medications at once?
Yes! You can add multiple medications to your cart, including prescription, OTC, and pet medications, and complete your purchase in a single checkout process.
Can I refill my prescription through Universal Drugstore?
Yes! If your prescription includes refills, you can reorder quickly by logging into your account and selecting your medication for a hassle-free refill process. Always refill your medication proactively and ontime, to ensure you do not run out of important medication.
Does Universal Drugstore offer discounts or price matching?
Yes! We offer:
- Up to 80% savings on medications
- Price match guarantee – we’ll match competitor pricing on qualifying medications
- 10% off your first order for new customers
How can I contact Universal Drugstore for additional support?
We offer 24/7 customer support via phone, email, and chat. Visit our Contact Us page for assistance with ordering, shipping, or medication questions.
Related Conditions
Important
The information, including but not limited to, text, graphics, images and other material contained on this website are for informational purposes to increase health awareness only. No material on this site is intended to be a substitute for professional medical advice, diagnosis or treatment.
Always seek the advice of your physician or other qualified health care provider with any questions you may have regarding a medical condition or treatment and before undertaking a new health care regimen, and never disregard professional medical advice or delay in seeking it because of something you have read on this website.