Product image of Medifolin (Calcium Folinate) supplied by GNH India

Medifolin

Active Ingredient:
Calcium Folinate
Origin:
EU

Medifolin (Calcium Folinate)

Calcium folinate, the active ingredient in Medifolin, is a folate analog presented as an oral formulation for oral use. It is employed to rescue normal cells from antifolate toxicity, to supplement folate in deficiency states, and as an adjunct in certain chemotherapy protocols.

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

Manufacturer / TM Owner

Laboratório Medinfar - Produtos Farmacêuticos, S.A.

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Indications & Clinical Uses

Medifolin (calcium folinate) is used in clinical settings that involve folate metabolism or antifolate therapy.

  • High‑dose methotrexate rescue: restores folate pools and reduces methotrexate‑related toxicity.
  • Combination chemotherapy adjunct: enhances efficacy of regimens that include antifolate agents.
  • Folate deficiency treatment: provides a bioavailable source of reduced folate for patients with inadequate dietary intake or malabsorption.

How It Works

  • Calcium folinate supplies a reduced form of folic acid that bypasses the dihydrofolate reductase step, directly entering the folate cycle. This restores folate‑dependent nucleotide synthesis, allowing DNA replication and repair in normal cells while mitigating the cytotoxic effects of antifolate drugs such as methotrexate.

Side Effects

Adverse reactions may occur with calcium folinate therapy and are categorized by frequency and severity.

Common Side Effects

  • Nausea: mild to moderate gastrointestinal upset.
  • Vomiting: occasional episodes, usually self‑limited.
  • Diarrhea: transient loose stools.
  • Elevated liver enzymes: mild, reversible increase.
  • Skin rash: mild erythematous eruption.

Serious or Rare Side Effects

  • Anaphylaxis: severe allergic reaction requiring immediate medical attention.
  • Bone marrow suppression: pancytopenia or severe neutropenia.
  • Hepatic failure: marked elevation of transaminases or jaundice.
  • Renal toxicity: acute kidney injury in susceptible individuals.
  • Severe cutaneous adverse reactions: Stevens‑Johnson syndrome or toxic epidermal necrolysis.

Precautions & Warnings

When prescribing calcium folinate, clinicians should consider several safety measures.

  • Renal function: assess baseline creatinine and monitor during therapy.
  • Hepatic function: check liver enzymes before and during treatment.
  • Pregnancy: use only if clearly indicated, after risk‑benefit evaluation.
  • Concurrent antifolate therapy: avoid overlapping use that may blunt rescue effect.
  • Drug interactions: review all concomitant medications for potential folate pathway interference.
  • Store at below 25°C: keep in the original packaging, protect from moisture and direct sunlight.

Avoid Interactions

Calcium folinate may interact with other medicines; some combinations require avoidance, others close monitoring.

Major Interactions (Avoid)

  • Methotrexate: concurrent use can diminish rescue efficacy.
  • Trimethoprim: may increase folate antagonism and toxicity.
  • Pemetrexed: additive antifolate effect raises risk of severe toxicity.

Moderate Interactions (Monitor Closely)

  • NSAIDs: may affect renal clearance of calcium folinate.
  • Penicillins: can interfere with folate metabolism pathways.
  • Phenytoin: may reduce folate levels, necessitating dose adjustment.

Frequently Asked Questions

Medifolin contains calcium folinate and is used primarily as a rescue agent after high‑dose methotrexate therapy, as an adjunct in certain chemotherapy regimens, and to treat patients with folate deficiency. It helps restore normal cellular function by providing a reduced form of folate that bypasses the block created by antifolate drugs.

Calcium folinate provides a reduced folate that enters the folate cycle downstream of the dihydrofolate reductase step. By doing so, it restores folate‑dependent nucleotide synthesis, allowing DNA replication and repair in healthy cells and reducing the toxic effects of antifolate agents such as methotrexate.

The dose of Medifolin is individualized and set by the prescribing clinician based on the specific indication, patient weight, renal and hepatic function, and concurrent therapies. Healthcare professionals determine the appropriate amount and schedule according to established clinical guidelines.

The safety of calcium folinate in pregnancy and lactation has not been fully established. It should only be used when clearly needed, after a careful risk‑benefit assessment by the treating physician. Breastfeeding mothers should consult their healthcare provider before initiating therapy.

To order Medifolin, 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.

Unlike standard folic acid, calcium folinate is a reduced folate that bypasses the dihydrofolate reductase step, making it effective as a rescue agent for antifolate toxicity. Conventional folic acid does not provide the same rapid cellular protection in high‑dose methotrexate settings, where calcium folinate is the preferred choice.

Medifolin should be stored at temperatures below 25 °C, in its original packaging, protected from moisture and direct sunlight. Maintaining these conditions helps preserve the stability and potency of the oral formulation throughout its shelf life.

Medifolin is supplied as an oral product and is taken by mouth with water. The exact timing relative to other chemotherapy agents, such as methotrexate, is determined by the prescribing clinician to ensure optimal rescue effect and minimize toxicity.

Serious risks include severe allergic reactions (anaphylaxis), bone marrow suppression leading to pancytopenia, significant hepatic dysfunction, acute renal injury, and rare severe skin reactions such as Stevens‑Johnson syndrome. Patients should be monitored closely for any signs of these events, and treatment should be discontinued if they occur.

Medifolin is contraindicated in patients with known hypersensitivity to calcium folinate or any component of the formulation. It should also be avoided in individuals receiving overlapping antifolate therapy where rescue is not intended, and in patients with severe renal or hepatic impairment unless the prescriber decides the benefits outweigh the risks.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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