Product image of Imatinib Lek-Am (Imatinib) supplied by GNH India

Imatinib Lek-Am

Active Ingredient:
Imatinib
Origin:
EU

Imatinib Lek-Am (Imatinib)

Imatinib, the active ingredient in Imatinib Lek-Am, is a tyrosine kinase inhibitor presented as an oral tablet for oral use. It treats chronic myeloid leukemia, Philadelphia chromosome‑positive acute lymphoblastic leukemia, gastrointestinal stromal tumor, dermatofibrosarcoma protuberans and systemic mastocytosis in appropriate patients.

GNH India supplies Imatinib Lek-Am as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Przedsiębiorstwo Farmaceutyczne Lek-Am Sp. Z O.O.

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Indications & Clinical Uses

Imatinib acts on malignant cells driven by BCR‑ABL, c‑KIT or PDGFR signaling pathways, providing targeted therapy for several hematologic and solid tumours.

  • Chronic myeloid leukemia (CML): improves survival by inhibiting BCR‑ABL‑driven proliferation.
  • Philadelphia chromosome‑positive acute lymphoblastic leukemia (Ph+ ALL): induces remission through BCR‑ABL blockade.
  • Gastrointestinal stromal tumor (GIST): reduces tumor growth by targeting c‑KIT.
  • Dermatofibrosarcoma protuberans (DFSP): shrinks lesions via PDGFR inhibition.
  • Systemic mastocytosis: controls disease activity by suppressing aberrant mast cell signaling.

How It Works

  • Imatinib selectively binds to the ATP‑binding pocket of BCR‑ABL, c‑KIT and PDGFR tyrosine kinases, stabilising them in an inactive conformation. This prevents phosphorylation of downstream substrates, halting proliferative signaling and inducing apoptosis in malignant cells that depend on these pathways for growth and survival.

Side Effects

Adverse reactions may vary in frequency and severity.

Common Side Effects

  • Nausea
  • Peripheral edema
  • Fatigue
  • Diarrhea

Serious or Rare Side Effects

  • Severe neutropenia or leukopenia
  • Hepatotoxicity (elevated transaminases)
  • Cardiac failure or reduced left‑ventricular function

Precautions & Warnings

Careful monitoring and patient education are essential when using Imatinib.

  • Monitor blood counts regularly: watch for neutropenia and anemia.
  • Assess liver function before and during therapy: detect hepatotoxicity early.
  • Evaluate cardiac status in patients with pre‑existing heart disease.
  • Avoid use in individuals with known hypersensitivity to Imatinib or its excipients.
  • Store at below 25°C: keep in the original pack, protect from moisture.

Avoid Interactions

Imatinib can interact with several concomitant medicines, altering its efficacy or safety.

Major Interactions (Avoid)

  • Strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole): increase Imatinib exposure.
  • Strong CYP3A4 inducers (e.g., rifampicin, carbamazepine): reduce therapeutic levels.

Moderate Interactions (Monitor Closely)

  • Warfarin: may enhance anticoagulant effect, monitor INR.
  • Diuretics (e.g., furosemide): increased risk of fluid retention.
  • QT‑prolonging agents (e.g., quinidine): monitor cardiac rhythm.

Frequently Asked Questions

Imatinib Lek-Am is prescribed for chronic myeloid leukemia, Philadelphia chromosome‑positive acute lymphoblastic leukemia, gastrointestinal stromal tumor, dermatofibrosarcoma protuberans and systemic mastocytosis. In each case the drug targets specific tyrosine kinases that drive disease progression, providing a targeted therapeutic approach.

Imatinib binds to the ATP‑binding site of BCR‑ABL, c‑KIT and PDGFR tyrosine kinases, locking them in an inactive state. This blocks downstream phosphorylation events, halting uncontrolled cell division and inducing apoptosis in malignant cells that rely on these signaling pathways.

The exact dose of Imatinib Lek-Am is determined by the prescribing clinician based on the specific indication, disease stage, patient weight, renal and hepatic function, and other individual factors. Healthcare professionals tailor the regimen to achieve optimal therapeutic benefit while minimizing risk.

The safety of Imatinib during pregnancy and lactation is not well established. It is classified as having an unknown pregnancy category, and potential risks to the fetus or infant cannot be ruled out. Women who are pregnant, planning pregnancy, or breastfeeding should discuss alternatives with their healthcare provider.

To place an order, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including any cold‑chain requirements) and the necessary import documentation.

Imatinib was the first BCR‑ABL tyrosine‑kinase inhibitor approved for chronic myeloid leukemia and remains a standard first‑line option. Newer agents such as dasatinib or nilotinib may offer faster molecular responses in some patients, but Imatinib’s long‑term safety profile and extensive clinical experience make it a widely used reference therapy.

Imatinib Lek-Am should be stored at temperatures below 25 °C, in its original packaging, and protected from moisture and direct sunlight. Maintaining these conditions helps preserve tablet potency throughout its shelf life.

Imatinib Lek-Am is taken orally, usually once daily, with or without food as directed by the prescriber. Patients should swallow the tablet whole with a full glass of water and follow any specific instructions regarding timing relative to meals.

Serious risks include severe neutropenia or leukopenia, hepatotoxicity, and cardiac failure or reduced left‑ventricular function. Patients should be monitored regularly for blood‑cell counts, liver enzymes and cardiac status, and any signs of these complications should prompt immediate medical evaluation.

Imatinib is contraindicated in individuals with known hypersensitivity to Imatinib or any of its excipients. Caution is also advised for patients with pre‑existing severe hepatic impairment, uncontrolled heart failure, or those taking medications that strongly interact with its metabolism.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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