Lesinurad is a medication used to treat hyperuricemia, which is a high level of uric acid in the blood. It is a xanthine oxidase inhibitor and works by decreasing the production of uric acid in the body. It is used in combination with another medication called allopurinol to treat gout. Lesinurad is taken by mouth, usually once daily. Common side effects include headache, joint pain, stomach pain, and diarrhea.
Lesinurad is a prescription medication used in combination with other medications to treat chronic gout in adults. Here's a breakdown of its key features:
Function: Lesinurad belongs to a class of drugs called selective uric acid reuptake inhibitors (SURIs). It works by targeting a specific protein transporter in the kidneys. This transporter is responsible for reabsorbing uric acid back into the bloodstream from the kidneys, where it's filtered out for excretion in urine. Lesinurad inhibits this reabsorption process, leading to increased excretion of uric acid through the urine.
Applications: Lesinurad is used in combination with a xanthine oxidase inhibitor (XOI) medication, such as allopurinol or febuxostat, for the treatment of chronic gout in adults who haven't achieved adequate urate level reduction with an XOI alone. Here's a brief explanation of how it works in combination therapy:
- Xanthine oxidase inhibitors (XOIs): These medications work by reducing the production of uric acid in the body.
- Lesinurad (SURI): While XOIs reduce uric acid production, Lesinurad helps eliminate existing urate through increased excretion. This two-pronged approach helps lower overall uric acid levels in the body.
Benefits of Lowering Uric Acid Levels:
- Reduced gout flares: Chronic gout is characterized by recurrent gout flares, which are sudden and severe attacks of pain, swelling, redness, and tenderness in the joints. Lowering uric acid levels helps prevent these flares by reducing the formation and buildup of urate crystals in the joints, a trigger for gout attacks.
- Dissolution of existing urate crystals: Over time, maintaining lowered uric acid levels can promote the dissolution of existing urate crystals in the joints, potentially reducing joint damage and improving long-term outcomes.
Important Considerations:
- Always used in combination: Lesinurad is not prescribed alone and must be used with an XOI medication for gout management.
- Not for everyone: Lesinurad may not be suitable for all patients with gout due to underlying health conditions or potential interactions with other medications. Kidney function is also an important factor, as Lesinurad is primarily eliminated through the kidneys.
- Potential side effects: These can include headache, high blood pressure, fatigue, and nausea. Regular monitoring by a doctor is crucial to manage side effects and assess kidney function.