Europe — EMA
Lanvis (Tioguanine)
GNH USA supplies Lanvis (Tioguanine), a thiopurine for acute lymphoblastic leukemia, chronic myeloid leukemia and inflammatory bowel disease.
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What is Tioguanine?
Tioguanine, the active ingredient in Lanvis, is a thiopurine presented as an oral formulation for oral use. It is employed in the treatment of acute lymphoblastic leukemia, chronic myeloid leukemia and inflammatory bowel disease in appropriate patients.
GNH USA supplies Lanvis as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres, pharmacies and clinics worldwide.
What is Tioguanine used for?
Lanvis, a thiopurine, is used in hematologic malignancies and immune‑mediated gastrointestinal disease.
Acute lymphoblastic leukemia: helps achieve remission by targeting rapidly dividing lymphoid cells. Chronic myeloid leukemia: contributes to disease control by inhibiting leukemic proliferation. Inflammatory bowel disease: reduces intestinal inflammation and maintains remission in selected patients.
What are the side effects of Tioguanine?
Adverse reactions may occur with Tioguanine therapy.
Common Side Effects: - Nausea - Vomiting - Diarrhea - Fatigue - Mild elevation of liver enzymes - Decreased white‑blood‑cell count
Serious or Rare Side Effects: - Severe bone‑marrow suppression (aplastic anemia) - Hepatotoxicity, including hepatic failure - Pancreatitis - Life‑threatening infections - Secondary malignancies - Severe hypersensitivity reactions such as Stevens‑Johnson syndrome
What precautions apply to Tioguanine?
Careful monitoring and patient counseling are essential when using Tioguanine. - Monitor blood counts: perform regular CBC to detect myelosuppression. - Assess liver function: check hepatic enzymes before and during therapy. - Screen for infections: evaluate for active infections prior to initiation. - Avoid use in patients with known hypersensitivity to thiopurines. - Pregnancy and lactation: discuss risks with prescriber; use only if benefits outweigh risks. - Store at ambient temperature: keep below 25°C in the original pack, protect from moisture.
What does Tioguanine interact with?
Tioguanine may interact with several medicines; some combinations should be avoided while others require close monitoring.
Major Interactions (Avoid): - Allopurinol: may increase Tioguanine toxicity. - Azathioprine: additive myelosuppression. - Warfarin: potential enhancement of anticoagulant effect.
Moderate Interactions (Monitor Closely): - 5‑Fluorouracil: increased hematologic toxicity. - Methotrexate: overlapping bone‑marrow suppression. - Rituximab: possible heightened immunosuppression.



