| Common Brands | Tavalisse |
|---|---|
|
Drug Class |
Kinase inhibitor (specifically SYK inhibitor) |
|
Controlled Substance Classification |
Not a controlled medication |
|
Generic Status |
Lower-cost generic available |
|
Availability |
Prescription-only; limited availability in Pakistan via specialty import |
Fostamatinib, sold under the brand name Tavalisse, is a medication used to treat chronic immune thrombocytopenia (ITP) in adults. ITP is a rare blood disorder where the body’s immune system mistakenly attacks and destroys its own platelets, which are tiny blood cells essential for clotting. This leads to a low platelet count, increasing the risk of bruising and bleeding. Fostamatinib is typically used when other treatments for ITP have not been effective. It is an oral medication, meaning it is taken by mouth as a tablet.
Fostamatinib is taken by mouth as a tablet, usually twice a day. It can be taken with or without food. It’s important to take your doses about 12 hours apart to keep a steady level of the medicine in your body. Swallow the tablet whole; do not crush, cut, or chew it. Your doctor will determine your starting dose and may adjust it over time based on your platelet count and how well you tolerate the medication. It’s crucial to take Fostamatinib regularly as prescribed, even if you don’t feel immediate changes, as its goal is to manage your platelet count over time.
Fostamatinib works by blocking a specific enzyme inside certain immune cells called spleen tyrosine kinase (SYK). In chronic ITP, the immune system creates antibodies that attach to platelets, marking them for destruction. These marked platelets are then typically destroyed in the spleen by specialized immune cells (macrophages) that use the SYK pathway. By inhibiting SYK, Fostamatinib interferes with the process by which these immune cells destroy platelets. This helps to reduce the destruction of platelets and allows platelet counts to increase, which lowers the risk of bleeding in patients with ITP.
Like all medications, Fostamatinib can cause side effects. Common ones include:
More serious but less common side effects can include severe diarrhea, elevated blood pressure that is difficult to control, and changes in liver function. It can also rarely cause neutropenia (low white blood cell count). Your doctor will monitor you with regular blood tests and blood pressure checks. Report any new or worsening symptoms to your doctor immediately.
Before taking Fostamatinib, your doctor will carefully review your medical history, especially if you have:
It is very important to tell your doctor about all other medicines you are taking, including over-the-counter drugs, vitamins, and herbal supplements, as Fostamatinib can interact with many of them.
Always provide a complete medication list to your healthcare provider to prevent dangerous interactions.
The dosage of Fostamatinib is individualized for each patient with chronic immune thrombocytopenia.
Do not adjust your dose without speaking to your doctor.
Fostamatinib is a prescription-only medication due to its specialized use in a rare blood disorder and the need for close medical supervision. You cannot obtain it without a valid prescription. The prescription process involves:
Therefore, Fostamatinib is prescribed and managed under the strict supervision of a qualified healthcare professional to ensure effective and safe treatment.
What is Fostamatinib used for? Treatment of chronic immune thrombocytopenia (ITP) in adults
2. What is the active ingredient? Fostamatinib disodium hexahydrate
3. What drug class does it belong to? Kinase inhibitor (SYK inhibitor)
4. Is it a controlled substance? No
5. Is it available in generic form? No
6. How is Fostamatinib administered? Orally, as tablets
7. What strengths are available? 100 mg and 150 mg tablets
8. What is the usual adult dosage? Start with 100 mg twice daily; may increase to 150 mg twice daily after 4 weeks if needed
9. Can it be used in children? Not approved for pediatric use
10. What are common side effects? Diarrhea, hypertension, dizziness, nausea, liver enzyme elevation
11. Can it cause serious reactions? Yes—hepatotoxicity, severe hypertension, neutropenia
12. Is it safe during pregnancy? Not recommended; may harm the fetus
13. Is a prescription required? Yes
14. Is Fostamatinib available in Pakistan? Only via specialty import programs
15. How should it be taken? With or without food, twice daily
16. What precautions should be taken during use? Monitor blood pressure, liver function, and complete blood counts
17. What are contraindications? Hypersensitivity to fostamatinib or its components
18. What monitoring is needed during use? Platelet counts, liver enzymes, blood pressure
19. Can it be combined with other ITP treatments? Yes—sometimes used after corticosteroids, rituximab, or thrombopoietin receptor agonists
20. What are similar drugs? Eltrombopag, romiplostim (TPO receptor agonists), rituximab
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