Product image of Hydroxyurea Medac (Hydroxycarbamide) supplied by GNH India

Hydroxyurea Medac

Active Ingredient:
Hydroxycarbamide
Origin:
EU

Hydroxyurea Medac (Hydroxycarbamide)

Hydroxycarbamide, the active ingredient in Hydroxyurea Medac, is an antimetabolite presented as an oral tablet for oral use. It is employed in the management of certain hematologic malignancies and blood disorders, including chronic myelogenous leukemia, sickle cell disease, polycythemia vera, and essential thrombocythemia.

GNH India supplies Hydroxyurea Medac as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, oncology centres and pharmacies worldwide. The company adheres to stringent quality standards and provides regulatory‑approved batches to meet clinical demand across multiple regions.

Manufacturer / TM Owner

Medac Gesellschaft Für Klinische Spezialpräparate Mbh (Wedel)

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Indications & Clinical Uses

Hydroxyurea is an antimetabolite used in the treatment of several hematologic conditions.

  • Chronic myelogenous leukemia: reduces leukemic cell proliferation and helps achieve hematologic remission.
  • Sickle cell disease: decreases frequency of vaso‑occlusive crises by raising fetal hemoglobin levels.
  • Polycythemia vera: lowers elevated red blood cell mass, helping control hematocrit.
  • Essential thrombocythemia: reduces platelet counts and mitigates thrombotic risk.

How It Works

  • Hydroxycarbamide inhibits ribonucleotide reductase, the enzyme responsible for converting ribonucleotides to deoxyribonucleotides. This inhibition reduces intracellular deoxyribonucleotide pools, impairing DNA synthesis and repair, which leads to cell cycle arrest in the S‑phase. By limiting DNA replication, hydroxyurea also induces stress responses that can promote apoptosis in susceptible clones.

Side Effects

Hydroxyurea may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects

  • Bone marrow suppression: anemia, neutropenia, or thrombocytopenia leading to fatigue or infection risk.
  • Gastrointestinal upset: nausea, vomiting, or abdominal discomfort that may affect appetite.
  • Skin changes: hyperpigmentation or rash, often mild and reversible.

Serious or Rare Side Effects

  • Severe myelosuppression: life‑threatening pancytopenia requiring transfusion or growth‑factor support.
  • Pulmonary toxicity: interstitial pneumonitis or fibrosis presenting with cough and dyspnea.
  • Leg ulcers: painful skin ulceration, especially in sickle cell patients, that may need specialized wound care.

Precautions & Warnings

When prescribing hydroxyurea, clinicians should observe several precautionary measures to minimize risks.

  • Baseline blood counts: obtain complete blood count before initiation and monitor regularly.
  • Renal function: assess serum creatinine and adjust use in impaired kidney function.
  • Hepatic function: evaluate liver enzymes and consider dose modification if elevated.
  • Pregnancy and lactation: avoid use unless benefits outweigh potential fetal risks; discuss with obstetric specialist.
  • Drug-specific contraindications: discontinue if severe myelosuppression or hypersensitivity occurs.
  • Store at ambient temperature: keep below 25 °C in original packaging, protect from moisture and light.

Avoid Interactions

Hydroxyurea can interact with several medicines, altering its efficacy or toxicity.

Major Interactions (Avoid)

  • Antiretroviral protease inhibitors: may increase hydroxyurea plasma levels, raising toxicity risk.
  • Azathioprine or mercaptopurine: additive bone‑marrow suppression leading to severe cytopenias.

Moderate Interactions (Monitor Closely)

  • NSAIDs: can enhance renal toxicity, requiring renal function monitoring.
  • Phenytoin: may reduce hydroxyurea effectiveness by inducing metabolism.
  • Live vaccines: immunosuppression from hydroxyurea may diminish vaccine response.

Frequently Asked Questions

Hydroxyurea Medac is indicated for several hematologic disorders, including chronic myelogenous leukemia, sickle cell disease, polycythemia vera, and essential thrombocythemia. In each case the drug helps control abnormal cell proliferation or improves blood parameters.

Hydroxycarbamide blocks ribonucleotide reductase, an enzyme needed to make deoxyribonucleotides for DNA synthesis. By depleting these building blocks, it halts DNA replication in rapidly dividing cells, leading to reduced proliferation of malignant or abnormal blood cells.

The dose of Hydroxyurea Medac is individualized by the prescribing clinician based on the specific indication, patient weight, baseline blood counts, renal and hepatic function, and response to therapy. No fixed regimen is provided here; the prescriber sets the appropriate dose.

The pregnancy category for hydroxycarbamide is unknown, and safety data are limited. Use is generally avoided unless the potential benefit to the mother outweighs possible risks to the fetus. Breastfeeding is also discouraged because the drug can be excreted in milk.

To request Hydroxyurea Medac, 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.

Hydroxyurea is a cytoreductive antimetabolite that is often less expensive and orally administered compared with injectable agents such as interferon‑α or newer JAK inhibitors like ruxolitinib. While effective for many patients, some may require alternative therapies if intolerance or inadequate response occurs.

Store Hydroxyurea Medac at ambient temperature, preferably below 25 °C. Keep the tablets in the original container, protect them from moisture and direct light, and ensure the packaging remains tightly closed until use.

Hydroxyurea Medac is supplied as oral tablets. Patients should swallow the tablet whole with a full glass of water, typically once daily or as directed by the prescriber. Food does not significantly affect absorption, but consistent timing helps maintain stable drug levels.

The most serious adverse events include severe myelosuppression leading to pancytopenia, pulmonary toxicity such as interstitial pneumonitis or fibrosis, and the development of leg ulcers, especially in patients with sickle cell disease. Prompt medical evaluation is required if these occur.

Hydroxyurea Medac should be avoided in patients with known hypersensitivity to hydroxycarbamide, those with severe bone‑marrow failure, uncontrolled infections, or active severe renal or hepatic impairment unless a specialist determines a benefit. Pregnant or breastfeeding women should only use it when absolutely necessary.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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