Key takeaways:
Cephalexin (Keflex) is an FDA-approved antibiotic used to treat many bacterial infections.
A week’s supply of cephalexin 500 mg capsules, taken twice daily, typically costs around $14.33 without insurance.
To save on cephalexin, use a GoodRx coupon and shop around to find the best price.
Cephalexin (Keflex) is an FDA-approved cephalosporin antibiotic. It’s often prescribed to treat a range of bacterial infections in kids and adults, including ear infections, respiratory tract issues, and urinary tract infections.
The brand-name version is no longer available, but you can get generic cephalexin as an oral capsule, tablet, or suspension (liquid). And if you’ve just been handed a prescription for cephalexin, you might wonder how much it will cost. Cephalexin is typically an affordable medication, but the price depends on the form, the dosage, and a few other factors.
The cost of cephalexin without insurance varies based on your prescription’s strength and dosage form. For adults, a typical dosage might be 500 mg capsules twice a day for 7 days (14 capsules), which costs around $14.33. If you’re prescribed the 250 mg capsule 4 times daily for the same period (28 capsules), you’ll pay about $14.38.
See the table below for the cost of cephalexin at some pharmacies:
Generic cephalexin quantity and form | Dose | Average retail price |
---|---|---|
28 capsules | 250 mg | |
56 capsules | 250 mg | |
14 capsules | 500 mg | |
28 capsules | 500 mg | |
14 capsules | 750 mg | |
28 tablets | 250 mg | |
56 tablets | 250 mg | |
14 tablets | 500 mg | |
28 tablets | 500 mg |
For children and those who have trouble swallowing pills, cephalexin is available in an oral suspension (liquid form). Since children’s dosages are calculated by body weight, the amount needed can vary.
A 100 mL bottle of the 125 mg/5 mL concentration costs about $25.68 without insurance. For the 250 mg/5 mL concentration, expect to pay around $27.79 for the same-size bottle. Your daily dose determines how long a bottle will last. For instance, if you’re taking 1,000 mg of the medication per day, a 100 mL bottle of the 250 mg/5 mL concentration will last 5 days.
Cephalexin prices vary based on different factors, including:
Location: Cities like New York and New Orleans tend to have higher-than-average prescription costs, while places like Denver and Atlanta usually offer lower prices, according to GoodRx research.
Pharmacy: Prescription costs can vary significantly among pharmacies, even those located near one another. So it’s worth comparing prices.
Insurance: With insurance, your out-of-pocket expenses will depend on your plan’s specifics, like deductibles, copays, and coinsurance.
Dosage: The dosage prescribed depends on the type and severity of the infection. Higher doses or longer treatment durations generally lead to higher costs.
Dosage form: Prices can also vary based on which dosage form of cephalexin you need. Some pharmacies may charge less for capsules than for tablets, even at the same dosage.
Antibiotics like cephalexin are generally covered by most health insurance plans. Since cephalexin is available as a generic medication, it typically doesn’t require prior authorization or step therapy.
Review your insurance plan’s formulary (a list of covered medications) to see which pricing tier includes cephalexin and what your out-of-pocket costs might be.
Here’s how different insurance plans typically handle cephalexin coverage, including the need for prior authorization and step therapy:
Insurance type for generic cephalexin | Enrollees covered for this medication | Enrollees required to get prior authorization | Enrollees required to do step therapy |
---|---|---|---|
Affordable Care Act (ACA) plans | 99.5% | 0% | 0.02% |
Commercial (not including ACA plans) | 99.4% | 0% | 0% |
Medicare (original Medicare and Medicare Advantage) | 99.2% | 0% | 0% |
Medicaid (including state-run and managed care plans) | 99.9% | 1.2% | 0% |
Source: Managed Markets Insight & Technology, as of September 26, 2024 (see methodology below)
Here are some ways to save on cephalexin regardless of your insurance status:
You can get a discount on cephalexin at many pharmacies with a free GoodRx coupon. The table below shows what you can expect to pay for different doses of generic cephalexin with GoodRx:
Quantity and form | Dose | GoodRx price |
---|---|---|
28 capsules | 250 mg | |
56 capsules | 250 mg | |
14 capsules | 500 mg | |
28 capsules | 500 mg | |
14 capsules | 750 mg | |
28 tablets | 250 mg | |
56 tablets | 250 mg | |
14 tablets | 500 mg | |
28 tablets | 500 mg | |
1 bottle (100 mL) of oral suspension | 125 mg/5 mL | |
1 bottle (100 mL) of oral suspension | 250 mg/5 mL |
Visit www.goodrx.com, or download the GoodRx app to get your coupon.
Even with a coupon, it’s worth comparing prices since medication costs can vary widely between pharmacies. GoodRx makes it easy to check prices in your area. Just type “cephalexin” in the search box, and press enter to see a list of nearby pharmacies and their prices.
Diarrhea and nausea are common side effects of cephalexin. A pharmacist shares other side effects of this medication and tips on how to manage them.
Cephalexin can interact with metformin, a medication commonly used to manage blood glucose. Here are some other cephalexin interactions you should know about.
How much cephalexin do you need? Our pharmacist explains the different doses of cephalexin and what to do if you take too much of the medication.
A health savings account (HSA) or a flexible spending account (FSA) can help cover your cephalexin costs. Simply use your HSA or FSA card at the pharmacy, or pay out of pocket and request reimbursement. FSA funds do expire, so use them before your savings go to waste.
Cephalexin (Keflex) 500 mg capsules taken twice a day for a week typically cost around $14.33 when paying without insurance. But you can pay as low as $4.76 for the same dosage form, dose, and quantity with a GoodRx coupon. Your actual cost depends on your pharmacy, your dosage, and whether you’re prescribed capsules, tablets, or liquid form. To lower your cephalexin costs, use a GoodRx coupon, check prices at different pharmacies, or pay with a health savings account or flexible spending account if you have one.
We obtained national prescription coverage data for each medication from Managed Markets Insight & Technology (MMIT). The data reflects health insurance coverage as of October 2024.
We calculated the percentage of enrollees in plans that cover each medication by dividing the number of enrollees covered for the medication within a specific insurance channel (e.g., ACA, Medicare, Medicaid) by the total number of enrollees in all plans within that channel.
We determined the percentage of enrollees in plans with a prior authorization requirement by calculating the proportion of enrollees in plans that required prior authorization for the medication within each channel.
Finally, we measured the percentage of enrollees in plans with a step therapy requirement by calculating the proportion of enrollees in plans that imposed step therapy requirements for the medication in each channel.
These estimates, derived from national MMIT coverage data, provide insight into health insurance coverage for each medication. They take into account restrictions such as prior authorization, step therapy, and quantity limits. The percentages are expressed relative to the total number of enrollees covered by various insurance channels, including the ACA, commercial (excluding ACA) plans, Medicare, and Medicaid (both state-run and managed care plans).
Ascend Laboratories. (2024). Cephalexin - cephalexin tablet [package insert].
A-S Medication Solutions. (2024). Cephalexin - cephalexin capsule [package insert].
Chartwell Rx. (2024). Cephalexin- cephalexin powder, for suspension [package insert].
Medicaid.gov. (n.d.). Managed care. Centers for Medicare & Medicaid Services.
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