
Uloric (febuxostat) is a xanthine oxidase inhibitor used to treat gout caused by excessive levels of uric acid in the blood (hyperuricemia). Common side effects of Uloric include nausea, rash, joint pain, gout flares, and liver problems. In rare cases, Uloric may also cause muscle spasms, muscle tightness, muscle weakness, and musculoskeletal pain. In addition, Uloric can increase the risk of serious or fatal heart problems, and it is important to seek medical attention if experiencing chest pain, trouble breathing, fast heartbeats, or other concerning symptoms. It is always advisable to consult a doctor or healthcare provider before taking any medication, including Uloric, to ensure safe and effective use.
| Characteristics | Values |
|---|---|
| Muscle pain | Uncommon (0.1% to 1%) |
| Cardiovascular death | Occurs in gout patients with established cardiovascular disease |
| Common side effects | Nausea, rash, joint pain, gout flares, liver problems |
| Less common side effects | Blood and lymphatic system disorders, cardiac disorders, ear and labyrinth disorders, eye disorders, gastrointestinal disorders |
| Severe allergic reactions | Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) or multiorgan hypersensitivity |
| Severe skin reactions | Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN) |
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What You'll Learn
- Uloric may cause musculoskeletal pain, muscle spasms, and myalgia
- Gout patients with cardiovascular disease have a higher risk of CV death
- Uloric may cause liver damage, also known as hepatotoxicity
- Uloric may cause severe skin reactions, including rashes, blisters, and Stevens-Johnson Syndrome
- Uloric may increase gout flares before controlling symptoms

Uloric may cause musculoskeletal pain, muscle spasms, and myalgia
Uloric (febuxostat) is a xanthine oxidase inhibitor used to treat gout caused by excessive levels of uric acid in the blood (hyperuricemia). Uloric reduces the production of uric acid in the body, preventing the formation of crystals in the joints and tissues that cause inflammation and pain. While Uloric is effective in managing gout, it is important to be aware of its potential side effects, which can vary among individuals.
One of the uncommon side effects associated with Uloric is musculoskeletal pain. In clinical studies, musculoskeletal pain was observed in 0.1% to 1% of patients taking Uloric. This side effect may manifest as muscle pain, spasms, tightness, and weakness. Additionally, myalgia, or muscle pain, can also occur at similar rates. These side effects can cause discomfort and impact an individual's quality of life.
It is worth noting that the occurrence of musculoskeletal pain and myalgia due to Uloric is relatively uncommon, affecting a small percentage of patients. However, it is crucial for individuals taking Uloric to be aware of these potential side effects and monitor their bodies for any unusual symptoms. If you experience muscle pain, spasms, or myalgia while taking Uloric, it is important to consult your healthcare provider for guidance and appropriate management.
While Uloric can cause musculoskeletal pain, muscle spasms, and myalgia in some individuals, these side effects are typically not the most common. More frequent side effects of Uloric include nausea, rash, joint pain, gout flares, and liver problems. It is always advisable to discuss the benefits and risks of Uloric therapy with your doctor, especially if you have existing medical conditions or concerns about potential side effects.
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Gout patients with cardiovascular disease have a higher risk of CV death
Uloric (febuxostat) is a xanthine oxidase inhibitor used to treat gout caused by excessive levels of uric acid in the blood (hyperuricemia). Common side effects of Uloric include nausea, rash, joint pain, gout flares, and liver problems. Uncommon side effects (0.1% to 1%) include muscle spasm, muscle tightness, and muscle weakness.
Gout patients with cardiovascular disease (CVD) have a higher risk of CV death. In the Cardiovascular Safety of Febuxostat and Allopurinol in Patients with Gout and Cardiovascular Morbidities (CARES) trial, gout patients with established cardiovascular disease experienced a significant increase in CV deaths compared to allopurinol (134/3098 vs 100/3092). The most common cause of CV death was sudden cardiac death (83 vs 56).
Several mechanisms have been suggested to explain the association between gout and increased CV mortality, including immobility resulting from joint pain and the additional cardiovascular risk conferred by medications used to manage gout, such as nonsteroidal anti-inflammatory drugs (NSAIDs). Systemic inflammation due to hyperuricemia and crystal-induced inflammation has also been implicated, leading to atherogenesis via endothelial dysfunction, decreased arterial compliance, and impaired blood flow.
Furthermore, gout has been associated with a higher rate of all-cause mortality, including cardiac and non-cardiac causes of death. Post-baseline gout diagnosis has been linked to a more than two-fold increase in the risk of heart failure death. Prior analyses have also demonstrated an increased risk of CVD death in patients with gout, with a 26% increased risk reported in one study of over 50,000 male participants.
It is important to note that Uloric itself may increase the risk of serious or fatal heart problems. Patients with a history of heart attack, stroke, or other cardiovascular risk factors should consult their doctors before taking Uloric.
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Uloric may cause liver damage, also known as hepatotoxicity
Uloric (febuxostat) is a xanthine oxidase inhibitor used to treat gout caused by excessive levels of uric acid in the blood (hyperuricemia). It reduces the production of uric acid in the body. However, it is associated with certain side effects, and one must be aware of these before taking the medicine.
In addition to hepatotoxicity, Uloric has been associated with a range of other adverse effects. These include an increased risk of serious or fatal heart problems, including cardiovascular death, particularly in patients with established cardiovascular disease. Other possible side effects include nausea, rash, joint pain, gout flares, blood and lymphatic system disorders, cardiac disorders, ear and labyrinth disorders, eye disorders, and gastrointestinal disorders.
It is important to note that the occurrence of these side effects can vary among individuals, and some may be rare. However, it is always advisable to consult a healthcare professional before taking Uloric to weigh the benefits against the potential risks. Additionally, regular medical follow-ups are crucial to monitor for any adverse reactions and ensure the medication is working as intended.
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Uloric may cause severe skin reactions, including rashes, blisters, and Stevens-Johnson Syndrome
Uloric (febuxostat) is a xanthine oxidase inhibitor used to treat gout caused by excessive levels of uric acid in the blood (hyperuricemia). It reduces the production of uric acid in the body.
Uloric may cause severe skin reactions in some patients, including rashes, blisters, and Stevens-Johnson Syndrome (SJS). SJS is a severe allergic reaction that can be life-threatening if not treated promptly. Symptoms of SJS may include painful red or purple skin that looks like a burn and peels off, as well as flat red rashes or blisters on the skin, mouth, nose, and genitals. If you develop a rash while taking Uloric, it is important to stop taking the medication and contact your healthcare provider immediately.
In addition to skin reactions, Uloric has also been associated with other rare but serious side effects, including liver damage (hepatotoxicity), kidney problems, and heart issues. Liver damage can be indicated by symptoms such as fatigue, anorexia, upper abdominal discomfort, dark urine, or jaundice. It is crucial to monitor liver enzymes and seek medical attention if any signs or symptoms of liver injury occur.
Furthermore, Uloric may increase the risk of serious or fatal heart problems. Patients should seek immediate medical attention if they experience chest pain, trouble breathing, fast heart rate, sudden severe headache, numbness, or weakness on one side of the body.
It is important to note that the side effects of Uloric can vary among individuals, and some people may experience muscle pain, joint pain, or gout flares when taking this medication. Therefore, it is always advisable to consult a doctor or healthcare provider before taking Uloric to weigh the benefits against the potential risks and side effects.
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Uloric may increase gout flares before controlling symptoms
Uloric (febuxostat) is a xanthine oxidase inhibitor used to treat gout caused by excessive levels of uric acid in the blood (hyperuricemia). Uloric reduces the production of uric acid in the body. A build-up of uric acid can cause gout symptoms.
Uloric has common side effects, including nausea, rash, joint pain, gout flares, and liver problems. In rare cases (0.01% to 0.1% of patients), Uloric can cause musculoskeletal stiffness and rhabdomyolysis, which is the breakdown of skeletal muscle.
Uloric may also increase your risk of serious or fatal heart problems. Seek medical attention if you experience chest pain, trouble breathing, fast heartbeats, sudden severe headache, numbness or weakness on one side of your body, or problems with vision or speech.
It is important to consult your doctor before taking Uloric if you are pregnant or breastfeeding.
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Frequently asked questions
Uloric (febuxostat) is a medicine used to treat gout. Muscle pain is a rare side effect, occurring in 0.01% to 0.1% of patients.
Common side effects of Uloric include nausea, rash, joint pain, gout flares, and liver problems.
Rare side effects, occurring in less than 0.1% of patients, include blood creatine phosphokinase (CPK) increase, joint stiffness, musculoskeletal stiffness, and rhabdomyolysis.
If you experience any side effects from Uloric, consult your doctor or healthcare provider immediately. It is important to follow their recommendations and seek medical attention if needed.
































