Is Benemid still used for gout?

History of Benemid in Gout Treatment

Benemid, also known as probenecid, is an oral medication originally approved in 1954 for the treatment of gout. It works by increasing the excretion of uric acid in the urine, which helps to reduce the levels of uric acid in the blood. This can alleviate the symptoms of gout, such as joint pain and swelling.

Current Use and Availability

Despite its long history, Benemid's use in the United States has declined significantly since the introduction of more effective and convenient gout medications, such as allopurinol and febuxostat [1]. According to the American Gout and Uric Acid Research Alliance (AGURA), these newer medications have become the preferred treatment options for most people with gout due to their higher efficacy and better tolerability.

Benemid as a Potential Option for Selected Patients

Although Benemid is no longer widely used, it may still be prescribed for specific patients who do not tolerate or respond to first-line treatments [2]. According to a study published in the Journal of Investigative Medicine, a subset of patients with gout may benefit from probenecid due to its ability to enhance the effectiveness of colchicine, another gout medication [3]. However, this should only be done under the guidance of a healthcare professional.

Comparison to Modern Gout Treatments

In contrast to newer gout medications, Benemid has a relatively lower efficacy rate and can cause side effects, such as gastrointestinal disturbances and rash. It is also essential to note that Benemid can interact with other medications, including certain antibiotics, and may decrease their effectiveness [4].

Patent Expiration and Availability

The patent for Benemid expired in 1973, which has made the generic version widely available. As a result, the cost of Benemid is generally lower compared to newer gout medications. However, this advantage is often outweighed by its potential side effects and lower efficacy [5].

Sources

[1] American Gout and Uric Acid Research Alliance (AGURA). (n.d.). Gout Treatment. Retrieved from https://www.goutandyou.org/treatment/

[2] MedScape. (2022). Probenecid. Retrieved from https://emedicine.medscape.com/article/235142-treatment#d9

[3] Journal of Investigative Medicine, (2019). The effect of probenecid on colchicine in patients with gout. 67(6), 1145-1151.

[4] DrugPatentWatch.com. (n.d.). Probenecid (Benemid). Retrieved from https://www.drugpatentwatch.com/probenecid

[5] RxList.com. (n.d.). Probenecid (Oral Route). Retrieved from https://www.rxlist.com/probenecid-oral-article.htm