Product image of Imatilek (Imatinib) supplied by GNH India

Imatilek

Active Ingredient:
Imatinib
Origin:
EU

Imatilek (Imatinib)

Imatinib, the active ingredient in Imatilek, is a tyrosine kinase inhibitor presented as a tablet for oral use. It treats chronic myeloid leukemia, Philadelphia chromosome‑positive acute lymphoblastic leukemia, and gastrointestinal stromal tumor in adult patients.

GNH India supplies Imatilek 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

Imatilek (imatinib) is used in hematologic and solid‑tumor malignancies driven by BCR‑ABL or related tyrosine kinases.

  • Chronic myeloid leukemia (CML): improves survival by inhibiting BCR‑ABL driven proliferation.
  • Philadelphia chromosome‑positive acute lymphoblastic leukemia (Ph+ ALL): induces remission through targeted kinase blockade.
  • Gastrointestinal stromal tumor (GIST): reduces tumor growth by targeting c‑KIT and PDGFR signaling.

How It Works

  • Imatilek (imatinib) selectively binds to the ATP‑binding site of BCR‑ABL, c‑KIT, and platelet‑derived growth factor receptors, preventing phosphorylation and downstream signaling that drive cell proliferation and survival. By blocking these tyrosine kinases, the drug halts malignant cell growth and induces apoptosis in affected tissues. It also shows activity against other related kinases, contributing to efficacy across multiple tumor types.

Side Effects

Imatilek may cause a range of adverse reactions, which are grouped by frequency and severity.

Common Side Effects

  • Nausea: mild to moderate upset stomach.
  • Diarrhea: loose stools that may require hydration.
  • Fatigue: generalized tiredness.
  • Edema: swelling of extremities, especially ankles.

Serious or Rare Side Effects

  • Hepatotoxicity: elevated liver enzymes or liver injury.
  • Cardiotoxicity: decreased left ventricular ejection fraction or heart failure.
  • Severe neutropenia: markedly low white blood cell count increasing infection risk.

Precautions & Warnings

When prescribing Imatilek, clinicians should consider several safety precautions.

  • Baseline assessment: obtain complete blood count and liver function tests before initiation.
  • Monitoring: perform regular CBC and hepatic panels during therapy.
  • Cardiac evaluation: assess cardiac function in patients with pre‑existing heart disease.
  • Drug interactions: review concomitant medications for CYP3A4 inhibitors or inducers.
  • Pregnancy and lactation: avoid use unless benefits outweigh risks; discuss with obstetric specialist.
  • Store at ambient temperature: keep below 25 °C, retain in original packaging, protect from moisture and light.

Avoid Interactions

Imatilek interacts with several medicines that can alter its plasma concentration or increase toxicity.

Major Interactions (Avoid)

  • Strong CYP3A4 inhibitors (e.g., ketoconazole, clarithromycin): may raise imatinib levels, risking toxicity.
  • Strong CYP3A4 inducers (e.g., rifampicin, carbamazepine): may lower imatinib exposure, reducing efficacy.
  • Antacids containing aluminum or magnesium: can reduce absorption if taken simultaneously.

Moderate Interactions (Monitor Closely)

  • Proton pump inhibitors: may modestly affect imatinib absorption; separate dosing by at least 2 hours.
  • Warfarin: imatinib may enhance anticoagulant effect; monitor INR closely.
  • CYP2C8 substrates (e.g., repaglinide): possible altered metabolism; adjust dose if needed.

Frequently Asked Questions

Imatilek (imatinib) is indicated for the treatment of chronic myeloid leukemia, Philadelphia chromosome‑positive acute lymphoblastic leukemia, and gastrointestinal stromal tumor. These diseases share abnormal activation of BCR‑ABL or related tyrosine kinases, which the drug specifically targets to control malignant cell growth.

Imatinib blocks the ATP‑binding pocket of several tyrosine kinases, most notably BCR‑ABL, c‑KIT, and PDGFR. By preventing phosphorylation, it stops downstream signaling pathways that promote cell division and survival, leading to reduced proliferation of cancer cells and, in many cases, induction of apoptosis.

The dose of Imatilek is individualized by the prescribing physician based on the specific indication, disease stage, patient weight, renal and hepatic function, and response to therapy. Dosage adjustments may be required during treatment, and the prescriber will provide detailed instructions.

Imatilek is classified as a prescription‑only medication and should be used during pregnancy or lactation only if the potential benefit justifies the potential risk to the fetus or infant. Clinicians typically advise women of child‑bearing potential to use effective contraception and discuss any breastfeeding plans with their healthcare provider.

To request Imatilek, 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 necessary import documentation.

Imatilek (imatinib) was the first BCR‑ABL inhibitor approved and remains a standard of care for CML and Ph+ ALL. Compared with newer agents, it has a well‑characterized safety profile and extensive clinical experience, though some newer inhibitors may offer activity against additional resistance mutations. Choice of therapy depends on disease characteristics and physician judgment.

Imatilek should be stored at ambient temperature, preferably below 25 °C. Keep the tablets in their original blister pack, protect them from moisture and direct light, and store them out of reach of children. Do not refrigerate or freeze the product.

Imatilek is taken orally, usually as a whole tablet with a glass of water. It can be taken with or without food, but consistency with meals helps maintain stable absorption. Patients should follow the dosing schedule prescribed by their healthcare professional and not alter the regimen without medical advice.

Serious adverse events linked to Imatilek include hepatotoxicity, cardiotoxicity such as reduced left ventricular ejection fraction, and severe neutropenia that can predispose to infections. Patients should be monitored regularly for liver enzymes, cardiac function, and blood counts to detect these risks early.

Imatilek is contraindicated in patients with known hypersensitivity to imatinib or any of its excipients. Caution is also advised for individuals with severe hepatic impairment, uncontrolled cardiac disease, or those taking strong CYP3A4 inducers that could markedly reduce drug exposure. The prescriber will assess suitability before initiating therapy.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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