Product image of Irinotecan Phares (Irinotecan Hydrochloride Trihydrate) supplied by GNH India

Irinotecan Phares

Active Ingredient:
Irinotecan Hydrochloride Trihydrate
Origin:
EU

Irinotecan Phares (Irinotecan Hydrochloride Trihydrate)

Irinotecan Hydrochloride Trihydrate, the active ingredient in Irinotecan Phares, is a topoisomerase I inhibitor presented as an injectable formulation for intravenous use. It is employed in the treatment of metastatic and advanced colorectal cancer in adult patients.

GNH India supplies Irinotecan Phares as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Pharma Resources Gmbh

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Indications & Clinical Uses

  • Irinotecan Phares is a topoisomerase I inhibitor used in colorectal cancer therapy.
  • Metastatic colorectal cancer: improves overall survival when used in combination chemotherapy.
  • Advanced colorectal cancer: reduces tumor progression and disease burden.
  • Colorectal adenocarcinoma: incorporated into standard regimens such as FOLFIRI to enhance response rates.

How It Works

  • Irinotecan is a pro‑drug that is converted intracellularly to SN‑38, a potent inhibitor of topoisomerase I. By stabilising the enzyme–DNA cleavable complex, it prevents relegation of single‑strand DNA breaks, leading to accumulation of DNA damage and ultimately cell death in rapidly dividing tumor cells.

Side Effects

Irinotecan may cause a range of adverse reactions.

Common Side Effects

  • Nausea and vomiting
  • Diarrhea
  • Neutropenia (decreased white blood cell count)
  • Fatigue

Serious or Rare Side Effects

  • Severe neutropenia with fever
  • Life‑threatening diarrhea (colitis)
  • Allergic or anaphylactic reactions

Precautions & Warnings

Careful monitoring is required when administering Irinotecan Phares.

  • Monitor blood counts: perform regular CBC to detect neutropenia.
  • Assess liver function: check hepatic enzymes before and during therapy.
  • Evaluate for bowel obstruction: avoid use in patients with known obstruction.
  • Avoid concurrent strong CYP3A4 inhibitors: may increase drug exposure.
  • Store at 2-8°C: keep refrigerated, protect from light, do not freeze.

Avoid Interactions

Irinotecan interacts with several medicines that may alter its safety or efficacy.

Major Interactions (Avoid)

  • Strong CYP3A4 inhibitors (e.g., ketoconazole): increase toxicity.
  • UGT1A1 inhibitors (e.g., atazanavir): raise active metabolite levels.
  • Live vaccines: risk of infection due to immunosuppression.

Moderate Interactions (Monitor Closely)

  • Anticoagulants (e.g., warfarin): increased bleeding risk.
  • Other myelosuppressive agents: additive bone‑marrow suppression.
  • Diuretics: potential electrolyte disturbances.

Frequently Asked Questions

Irinotecan Phares contains the chemotherapy agent irinotecan hydrochloride tri‑hydrate and is indicated for the treatment of metastatic and advanced colorectal cancer in adult patients, typically as part of combination regimens such as FOLFIRI.

Irinotecan is converted inside cancer cells to the active metabolite SN‑38, which inhibits topoisomerase I. This prevents the re‑ligation of single‑strand DNA breaks, leading to accumulation of DNA damage and ultimately cell death in rapidly dividing tumor cells.

The dosing regimen for Irinotecan Phares is determined by the prescribing oncologist based on the patient’s clinical condition, body surface area, and treatment protocol. Specific dose amounts and schedules are not disclosed here.

Irinotecan is classified as contraindicated in pregnancy because it may cause fetal harm. Limited data exist for breastfeeding, and the drug is generally not recommended as it can be excreted in milk and affect the infant.

To place an order, submit an enquiry on the Irinotecan Phares 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 cold‑chain if needed) and required import documentation.

The primary alternative in colorectal cancer regimens is oxaliplatin, a platinum‑based agent. While oxaliplatin causes DNA cross‑linking, Irinotecan inhibits topoisomerase I. Both are effective, but they differ in toxicity profiles; Irinotecan is more associated with diarrhea and neutropenia, whereas oxaliplatin commonly causes peripheral neuropathy.

Irinotecan Phares should be stored refrigerated at 2‑8 °C. Keep the vials in their original packaging, protect from light, and do not freeze or shake the product. If temporary storage at controlled room temperature is unavoidable, limit exposure to no more than 24 hours.

The product is supplied as a sterile injectable solution for intravenous infusion. Administration is performed by qualified healthcare professionals, usually over 30‑90 minutes, following institutional protocols and pre‑medication guidelines to mitigate infusion‑related reactions.

The most critical adverse events include severe neutropenia with fever, life‑threatening diarrhea (colitis), and hypersensitivity reactions that can progress to anaphylaxis. Prompt recognition and medical intervention are essential to manage these risks.

Patients with known hypersensitivity to irinotecan or any component of the formulation, those with unresolved bowel obstruction, and individuals with severe hepatic impairment should avoid Irinotecan Phares. Additionally, it is contraindicated during pregnancy.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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