GNH USA

Europe — EMA

Mercaptopurine Silver Pharma

GNH USA supplies Mercaptopurine Silver Pharma (Mercaptopurine), a purine analog antimetabolite for acute lymphoblastic leukemia, maintenance therapy

Mercaptopurine Monohydrate

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What is Mercaptopurine Monohydrate?

Mercaptopurine, the active ingredient in Mercaptopurine Silver Pharma, is a purine analog antimetabolite presented as a strength/form for oral use. It treats acute lymphoblastic leukemia, is employed in maintenance therapy for leukemia, and serves as an immunosuppressant in inflammatory bowel disease.

GNH USA supplies Mercaptopurine Silver Pharma as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres, pharmacies and clinics worldwide.

What is Mercaptopurine Monohydrate used for?

Mercaptopurine is used in diseases where abnormal cell proliferation or immune activation is a key factor.

Acute lymphoblastic leukemia (ALL): used as part of induction and maintenance regimens to achieve and sustain remission. Maintenance therapy for leukemia: helps prevent relapse by suppressing residual malignant cells. Inflammatory bowel disease (IBD): employed as an immunosuppressive agent to reduce intestinal inflammation in Crohn’s disease and ulcerative colitis.

What are the side effects of Mercaptopurine Monohydrate?

Adverse reactions may occur and should be monitored during therapy.

Common Side Effects: - Nausea or vomiting - Loss of appetite - Mild leukopenia or neutropenia - Fatigue - Rash or mild skin irritation - Elevated liver enzymes

Serious or Rare Side Effects: - Severe bone‑marrow suppression (pancytopenia) - Hepatotoxicity or liver failure - Pancreatitis - Severe infections due to immunosuppression - Hypersensitivity reactions including Stevens‑Johnson syndrome - Secondary malignancies such as therapy‑related leukemia

What precautions apply to Mercaptopurine Monohydrate?

Before initiating therapy, clinicians should assess baseline parameters and monitor patients regularly.

Monitor blood counts: perform regular CBC to detect myelosuppression. Assess liver function: schedule periodic LFTs for hepatotoxicity. Screen for infections: watch for signs of opportunistic infection. Avoid use in patients with known hypersensitivity to mercaptopurine. Pregnancy and lactation: prescribe only if potential benefits outweigh risks. Store at below 25°C: keep in the original container, protect from moisture and light.

What does Mercaptopurine Monohydrate interact with?

Mercaptopurine may interact with several medicines, requiring dose adjustments or avoidance.

Major Interactions (Avoid): - Allopurinol: can markedly increase mercaptopurine toxicity. - Azathioprine: additive myelosuppressive effect. - Warfarin: may enhance anticoagulant activity and increase bleeding risk.

Moderate Interactions (Monitor Closely): - TPMT inhibitors: require dose reduction based on enzyme activity. - Fluoroquinolones: may raise risk of bone‑marrow suppression. - Methotrexate: combined immunosuppression may necessitate closer laboratory monitoring.

Frequently asked questions

What is Mercaptopurine Silver Pharma used for?+
Mercaptopurine Silver Pharma is prescribed for acute lymphoblastic leukemia, as part of maintenance therapy to keep leukemia in remission, and as an immunosuppressive agent in inflammatory bowel disease such as Crohn’s disease and ulcerative colitis.
How does mercaptopurine work?+
After oral absorption, mercaptopurine is metabolised to thio‑inosine monophosphate, which blocks de novo purine synthesis and incorporates into DNA and RNA. This interferes with nucleic‑acid formation, causing cytotoxicity in rapidly dividing cells and suppressing immune‑cell proliferation.
What is the usual dose of Mercaptopurine Silver Pharma?+
The dose is individualized and set by the prescribing clinician based on the patient’s age, weight, disease indication, and laboratory parameters such as TPMT activity. No fixed regimen is provided here; dosing decisions are made by the treating physician.
Is Mercaptopurine safe during pregnancy or breastfeeding?+
Mercaptopurine’s pregnancy category is not definitively established. It should be used only when the potential therapeutic benefit justifies the possible risk to the fetus. Breastfeeding is generally discouraged because the drug can be excreted in milk; consult a healthcare professional for personalized advice.
How do I order Mercaptopurine Silver Pharma from GNH USA?+
Submit an enquiry on the product page at gnh-usa.com, specifying the required quantity. GNH USA works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including any cold‑chain needs) and necessary import documentation.
How does Mercaptopurine compare with the main alternative drug or class?+
The most common alternative is azathioprine, another thiopurine. Both share similar mechanisms, but mercaptopurine is often preferred for certain leukemias because it provides more direct antineoplastic activity, whereas azathioprine is primarily used as an immunosuppressant in transplant and autoimmune settings.
What are the storage and handling requirements for Mercaptopurine Silver Pharma?+
Store the product at temperatures below 25 °C, in its original packaging, protected from moisture and direct light. Keep the container tightly closed and out of reach of children. Do not refrigerate unless the label specifically indicates otherwise.
How is Mercaptopurine Silver Pharma administered?+
The medication is taken orally, usually with a glass of water. It may be taken with or without food, but consistent administration with respect to meals helps maintain stable absorption. Follow the prescribing clinician’s instructions regarding timing and any dietary considerations.
What are the most serious risks to watch for while taking Mercaptopurine?+
Serious risks include severe bone‑marrow suppression leading to pancytopenia, hepatotoxicity, pancreatitis, life‑threatening infections due to immunosuppression, hypersensitivity reactions such as Stevens‑Johnson syndrome, and the rare development of secondary malignancies.
Who should not use Mercaptopurine Silver Pharma?+
Patients with known hypersensitivity to mercaptopurine or any of its excipients should avoid it. Those with severe hepatic impairment, active uncontrolled infections, or pre‑existing severe bone‑marrow suppression should not be started on the drug without careful specialist evaluation.
Information provided on this page is for educational use by procurement and clinical professionals. Always consult a licensed healthcare provider for medical advice and prescribing decisions. GNH USA supplies this product subject to applicable regulatory and licensing requirements.

Product details

Drug
Mercaptopurine Monohydrate
Route
Oral Use
Manufacturer
Silver Pharma S.L.
Origin
EU

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