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Probenecid

Probenecid 500MG

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What is Probenecid?

Probenecid is a generic drug used to treat patients with gout. Probenecid costs around $48 for a supply of 60, 500 mg tablets. You can use our Rx.com Probenecid savings card to save on the retail price at participating pharmacies near you.

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What is Probenecid ?

Probenecid is a generic drug used to treat patients with gout. Probenecid costs around $48 for a supply of 60, 500 mg tablets. You can use our Rx.com Probenecid savings card to save on the retail price at participating pharmacies near you.
  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
  • Blood in the urine, pain when urinating, back pain
  • Severe stomach pain, vomiting, or diarrhea
  • Tell your doctor if you are pregnant or breastfeeding, or if you have kidney stones, a blood disorder, kidney disease, or a history of stomach ulcers.
  • This medicine may cause the following problems:Increased gout symptoms, when you first start treatmentKidney stones
  • Tell any doctor or dentist who treats you that you are using this medicine, especially if you are going to have general anesthesia.
  • Tell any doctor or dentist who treats you that you are using this medicine. This medicine may affect certain medical test results.
  • Keep all medicine out of the reach of children. Never share your medicine with anyone.
What is probenecid used for?
Probenecid is FDA-approved to treat chronic gout and gouty arthritis by helping the kidneys remove more uric acid, which lowers blood uric acid over time. It is also approved as an add-on to penicillin-type antibiotics (such as penicillin, ampicillin, methicillin, oxacillin, cloxacillin, and nafcillin) to raise and prolong their levels in the blood. It is not used for sudden, acute gout attacks and should not be started during one.
How long does it take for probenecid to work for gout?
Probenecid is a preventive, long-term treatment rather than a quick fix. It begins lowering uric acid soon after you start, but it can take weeks to months of steady use to reduce the frequency of gout flares. During the early weeks it can actually trigger flares as uric acid levels shift, which is why colchicine or an NSAID is often prescribed alongside it at first. Keep taking it as directed even if you feel well.
Why do you have to drink a lot of water with probenecid?
Because probenecid pushes more uric acid out through the kidneys, it can raise your risk of uric acid kidney stones. Drinking plenty of fluids, often about 6 to 8 glasses of water a day, helps flush the kidneys and lowers that risk. Your provider may also suggest steps to keep your urine less acidic. Ask your provider how much fluid is right for you.
Can you take probenecid and aspirin together?
Aspirin and other salicylates can work against probenecid by blocking its ability to lower uric acid, so combining them is generally discouraged for gout treatment. Occasional low-dose aspirin decisions should be made with your provider, and you should tell them about all medicines you take. Do not start or stop aspirin on your own while taking probenecid.
What is the difference between probenecid and allopurinol?
Both lower uric acid but by different mechanisms. Probenecid is a uricosuric that helps the kidneys excrete more uric acid, and it works best when kidney function is normal. Allopurinol reduces how much uric acid the body produces in the first place and is often used as a first-line long-term therapy. Your provider chooses between them based on your kidney function, other conditions, and how your body handles uric acid.
How much does Probenecid cost without insurance?
The price of Probenecid without insurance varies by pharmacy, dosage, and quantity. Rx.com compares cash prices at more than 60,000 US pharmacies so you can find the lowest price near you. Many people save up to 39% off retail prices with a free Rx.com coupon.
What are the common side effects of Probenecid?
Common side effects of Probenecid may include: Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing, Blood in the urine, pain when urinating, back pain, Severe stomach pain, vomiting, or diarrhea. This is not a complete list — consult your pharmacist or doctor for full side effect information.
Is there a generic version of Probenecid?
Generic versions may be available for Probenecid. Generics contain the same active ingredients as brand-name drugs and are typically 80–90% cheaper. Search Probenecid on Rx.com to compare generic and brand prices at pharmacies near you.
What is the cheapest pharmacy for Probenecid?
The cheapest pharmacy for Probenecid depends on your location and dosage. Rx.com compares prices at CVS, Walgreens, Walmart, Kroger, Costco, and thousands of independent pharmacies. Enter your ZIP code on Rx.com to find the lowest price for Probenecid near you.

Probenecid Coupons & Prices

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Looking for a probenecid coupon? Probenecid is an inexpensive generic medication used to treat chronic gout and to boost the levels of certain antibiotics, but the cash price still varies widely from one pharmacy to the next. Rx.com compares prices across more than 60,000 U.S. pharmacies so you can find a low price near you. Enter your ZIP above to see today's price and print or show your free coupon at the counter.

What is probenecid and how does it work?

Probenecid is a uricosuric agent, meaning it helps the kidneys remove more uric acid from the body. In people with chronic gout and gouty arthritis, this lowers the level of uric acid in the blood, which over time reduces gout flares and the buildup that damages joints. It is a long-term, preventive treatment and is not used to relieve a sudden, acute gout attack. In fact, starting probenecid during an acute attack can make it worse, so treatment is usually begun only after the attack has settled.

Probenecid has a second, very different job. It slows how quickly the kidneys clear certain drugs, so it is also FDA-approved as an add-on to penicillin-type antibiotics (such as penicillin, ampicillin, methicillin, oxacillin, cloxacillin, and nafcillin) to raise and prolong their levels in the blood. The original brand names Benemid and Probalan have been discontinued, but probenecid remains widely available as a low-cost generic. A colchicine-probenecid combination is also available as a low-cost generic; the older branded versions (Col-Probenecid, Colbenemid) have been discontinued.

How much does probenecid cost without insurance?

Probenecid is an older generic, so it is generally an affordable medication even if you pay cash. That said, the price for the very same tablet can differ a lot depending on which pharmacy you use, so it pays to compare before you fill. A Rx.com coupon is free to use and works whether or not you have insurance; many people find the cash coupon price beats their copay.

To check the current price, enter your ZIP code above. Rx.com will show today's price at pharmacies near you across our network of more than 60,000 locations, and you can print the coupon or pull it up on your phone at the counter. There is no membership or signup required to use it.

Probenecid vs. other gout medications

Probenecid is one of several options for managing gout, and they work in different ways, so your provider chooses based on your kidney function, other health conditions, and how your body handles uric acid. Common alternatives and companion medicines include:

  • Allopurinol and febuxostat lower uric acid by reducing how much the body makes, rather than by increasing how much the kidneys excrete. They are often first-choice long-term therapies.
  • Colchicine is frequently prescribed alongside probenecid during the first months of treatment to help prevent the flares that can occur as uric acid levels shift.
  • Colchicine-probenecid combines both medicines in one tablet.

Probenecid tends to work best in people with normal kidney function; it is not effective when kidney function is significantly reduced. Only your provider can decide which approach fits you, but Rx.com can help you compare the price on whichever one you are prescribed.

Safety and important warnings

Probenecid has no boxed warning, but there are important cautions. It should not be started during an acute gout attack and should not be used in children under 2 years of age, in people with certain blood disorders, or in those with uric acid kidney stones. Because it moves more uric acid through the kidneys, it can raise the risk of kidney stones, which is why drinking plenty of fluids (often 6 to 8 glasses of water a day) is recommended, and your provider may advise measures to keep the urine less acidic.

Probenecid interacts with many medicines. Aspirin and other salicylates can block its effect on uric acid, and probenecid can raise blood levels of drugs such as methotrexate (a potentially serious interaction), penicillins, and NSAIDs. Rare but serious reactions, including severe skin and allergic reactions, hemolytic anemia (especially in people with G6PD deficiency), and liver injury, have been reported. This is general information, not medical advice; tell your provider about every medication and supplement you take, and follow their guidance.

Sources & accuracy

This Probenecid information was written and reviewed against authoritative U.S. medical sources — MedlinePlus (U.S. National Library of Medicine), DailyMed, and FDA prescribing information — and checked for accuracy. It is provided for education and is not a substitute for professional medical advice.

Verify the official label: Probenecid on DailyMed (FDA)

Reviewed against FDA labeling · Last reviewed July 2026

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Medical disclaimer: This information is provided for general educational purposes only and is not medical advice. It is not a substitute for professional diagnosis or treatment. Always consult a licensed physician, pharmacist, or other qualified healthcare provider before starting, stopping, or changing any medication or treatment. Never disregard professional medical advice or delay seeking it because of something you read here. If you think you may have a medical emergency, call your doctor or 911 immediately.


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