Product image of Nibix (Imatinib) supplied by GNH India

Nibix

Active Ingredient:
Imatinib
Origin:
EU

Nibix (Imatinib)

Imatinib, the active ingredient in Nibix, is a tyrosine kinase inhibitor presented as an oral tablet for oral use. It treats BCR‑ABL positive malignancies such as chronic myeloid leukemia, Philadelphia chromosome‑positive acute lymphoblastic leukemia and gastrointestinal stromal tumor.
GNH India supplies Nibix as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Gedeon Richter Plc.

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Indications & Clinical Uses

Imatinib targets malignancies driven by BCR‑ABL or related tyrosine‑kinase pathways.

  • Chronic myeloid leukemia (CML): reduces leukemic cell proliferation and improves long‑term survival.
  • Philadelphia chromosome‑positive acute lymphoblastic leukemia (Ph+ ALL): induces remission by inhibiting BCR‑ABL positive blasts.
  • Gastrointestinal stromal tumor (GIST): blocks c‑KIT signaling to limit tumor growth.

How It Works

  • Imatinib binds competitively to the ATP‑binding sites of BCR‑ABL, c‑KIT and PDGFR tyrosine kinases, preventing phosphorylation of downstream substrates. This inhibition halts proliferative signaling pathways in malignant cells, leading to cell cycle arrest and apoptosis of the cancerous clone.

Side Effects

Imatinib may cause a range of adverse reactions.

Common Side Effects

  • Nausea: mild to moderate stomach upset.
  • Edema: swelling of the hands, feet or face.
  • Muscle cramps: especially in the lower limbs.
  • Fatigue: general tiredness.
  • Diarrhea: loose stools.
  • Rash: skin irritation or redness.

Serious or Rare Side Effects

  • Neutropenia: dangerously low white blood cell count.
  • Thrombocytopenia: reduced platelet levels leading to bleeding.
  • Hepatotoxicity: elevated liver enzymes or liver injury.
  • Cardiac failure: signs of reduced heart function.
  • Severe skin reactions: Stevens‑Johnson syndrome or toxic epidermal necrolysis.
  • Pulmonary hypertension: increased pressure in lung arteries.

Precautions & Warnings

Before initiating therapy, several safety measures should be observed.

  • Monitor blood counts: perform regular CBC to detect cytopenias.
  • Assess liver function: periodic LFTs to identify hepatotoxicity.
  • Evaluate cardiac status: watch for signs of heart failure.
  • Avoid in patients with known hypersensitivity to imatinib or its excipients.
  • Store at room temperature: keep in the original pack, protect from moisture and light.

Avoid Interactions

Imatinib interacts with several medicines that can alter its efficacy or safety.

Major Interactions (Avoid)

  • Strong CYP3A4 inhibitors (e.g., ketoconazole, clarithromycin): increase imatinib exposure.
  • Strong CYP3A4 inducers (e.g., rifampin, phenytoin): reduce imatinib plasma levels.
  • Concomitant use with other BCR‑ABL inhibitors: may cause additive toxicity.

Moderate Interactions (Monitor Closely)

  • Antacids containing aluminum or magnesium: may affect absorption; separate dosing by at least 2 hours.
  • Warfarin: imatinib can potentiate anticoagulant effect; monitor INR.
  • CYP2C8 inhibitors (e.g., gemfibrozil): modestly raise imatinib concentrations.

Frequently Asked Questions

Nibix contains imatinib and is indicated for chronic myeloid leukemia, Philadelphia chromosome‑positive acute lymphoblastic leukemia and gastrointestinal stromal tumor. These diseases share a reliance on BCR‑ABL, c‑KIT or PDGFR tyrosine‑kinase signaling, which imatinib specifically blocks.

Imatinib binds to the ATP‑binding pocket of BCR‑ABL, c‑KIT and PDGFR tyrosine kinases, preventing their activation. By stopping the phosphorylation cascade, the drug halts uncontrolled cell division and triggers programmed cell death in malignant cells that depend on these pathways.

The dose of Nibix is individualized by the prescribing physician based on the specific cancer type, disease stage, patient weight, renal and hepatic function, and response to therapy. No standard dose is provided here; the prescriber determines the appropriate regimen.

Safety data for imatinib in pregnancy and lactation are limited. It is generally advised to avoid use unless the potential benefit justifies the potential risk to the fetus or infant. Women of child‑bearing potential should use effective contraception during treatment.

To order Nibix, 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 and any necessary import documentation.

Nibix (imatinib) is the first‑generation BCR‑ABL inhibitor and is generally well‑tolerated. Newer agents such as dasatinib or nilotinib may offer activity against some imatinib‑resistant mutations but can have different safety profiles, including higher rates of vascular events. Choice of therapy depends on mutation status, prior treatment and patient comorbidities.

Store Nibix at room temperature, below 25 °C, in the original container. Protect the tablets from moisture, excessive heat and direct sunlight to maintain potency throughout the shelf life.

Nibix is taken orally, usually with a glass of water. It can be swallowed with or without food, but consistent administration with respect to meals helps maintain stable drug levels. Patients should follow the prescriber’s instructions regarding timing and any required dose adjustments.

The most critical adverse events include severe neutropenia or thrombocytopenia, which can lead to infection or bleeding, hepatotoxicity with possible liver failure, cardiac dysfunction such as congestive heart failure, and rare but life‑threatening skin reactions like Stevens‑Johnson syndrome.

Nibix is contraindicated in individuals with known hypersensitivity to imatinib or any of its excipients. Caution is also advised for patients with pre‑existing severe liver impairment, uncontrolled cardiac disease, or those receiving interacting medications that cannot be safely managed.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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