Tisopurine is a medication used to treat gout and other forms of inflammatory arthritis. It belongs to a class of drugs known as xanthine oxidase inhibitors. It works by reducing the production of uric acid in the body, which can help to reduce pain and inflammation associated with gout. Tisopurine is available in tablet form and is typically taken twice daily. Common side effects include nausea, diarrhea, and stomach pain.
Tisopurine, also known by the brand name thioguanine, is a medication used to treat several conditions. Here's a breakdown of its key aspects:
Function: Tisopurine acts as an immunosuppressant [1].
Medical Uses:
- Primarily treats acute lymphoblastic leukemia (ALL), a type of blood cancer, in children [1, 2].
- It may also be used in combination with other medications to treat other cancers like chronic myelogenous leukemia (CML) and some autoimmune diseases [2].
How it Works: The exact mechanism of action isn't fully understood, but tisopurine disrupts the growth and division of rapidly multiplying cells, including cancer cells and overactive immune cells in autoimmune diseases [1].
Important Considerations:
- Tisopurine is typically taken orally as a tablet [2].
- It can cause serious side effects, including bone marrow suppression (reduced blood cell production), nausea, vomiting, diarrhea, liver damage, and increased risk of infections [1, 2].
- Genetic testing is crucial: A person's genes determine how they metabolize tisopurine. Testing for an enzyme called thiopurine methyltransferase (TPMT) is essential before starting treatment. People with certain TPMT variations may not be able to safely take tisopurine due to increased risk of side effects [2].
- Regular blood tests are needed to monitor blood cell counts and liver function while on tisopurine [2].
- Tisopurine can suppress the immune system, making you more susceptible to infections. It's important to practice good hygiene and inform your doctor promptly if you experience any signs of infection [2].
- Tisopurine can harm an unborn baby. Women who are pregnant or planning to become pregnant should discuss the risks and benefits with their doctor before taking tisopurine [2].