Darbosis 40mcg is the trade name for darbepoetin alfa Darbosis 40mcg is a biologic response modifier. It is an erythropoiesis stimulating protein. Darbosis 40mcg injection causes the bone marrow to produce RBCs. If the body does not produce enough red blood cells, serious Anemia can occur. This often present in people with chronic kidney failure whose kidneys are not functioning properly.



1ml in a Vial


Darbosis 40mcg is indicated for the treatment in patients with Anemia associated with chronic kidney disease (CKD).

Darbosis 40mcg is indicated for the treatment in patients with Anemia is caused by chemotherapy cancer treatment but it is a support medication, it will not treat cancer.

Darbosis 40mcg is indicated for the treatment in patients with Symptomatic Anemia associated with myelodysplastic syndromes (MDS).

Mechanism of action

Darbepoetin alfa provoke erythropoiesis by the same mechanism as endogenous erythropoietin. Erythropoietin combines with progenitor stem cells to raise red cell production.

Binding of erythropoietin to the erythropoietin receptor causes to receptor dimerization, that facilitates activation of JAK-STAT indicating pathways within the cytosol.

Signal transducers and activators of transcription (Activated STAT) proteins are then translocated to the nucleus where they supply as transcription factors which controls the activation of genes contains in cell division or differentiation.

ADME Properties

Slow absorption and Time to peak plasma concentration is 34 hr subcutaneously (SC) Bioavailability for adult is 37% SC and children is 54% SC

Volume of distribution is 0.06L/kg

Half-life is 46 hr (SC) and if IV then 21 hr.



Ingredients Darbepoetin alfa
Strength 40mcg
Pack 1ml in a Vial

Dosage and administration
The recommended dose of this medicine will be varied for different patients.

Anemia from chronic kidney failure
The dose preferred for adults and children – dose mainly based on body weight The initial dose is 0.45 to 0.75 mcg/kg of body weight injected via IV or SC (under the skin) once a week or once every week. Your doctor may adjust the dose as needed

Anemia from cancer chemotherapy
For adult: dose is based on body weight The initial dose is 2.25mcg once every 3 weeks injected under the skin. The dose for children and use should be determined by your doctor

The side effects caused by Darbosis 40mcg as follows,

Common side effects
Shortness of breath, Cough, Low blood pressure during dialysis, Pain in abdominal, Edema of the arms or legs.

Serious side effects
Hypertension, Seizures, Serious allergic reaction: wheezing, dizziness, skin rash, itching.

  • Darbosis 40mcg injection will causes high mortality, myocardial infarction, stroke, and thromboembolism: Using ESAs to target a haemoglobin level of greater than 11 g/dL raises the risk of severe adverse cardiovascular reactions
  • Darbosis 40mcg injection will leads to known porphyria, sickle cell Anemia, thalassemia in patients
  • Reduction of dose if Hgb increase exceeds 1 g/dL in any 2-week period
  • Higher the mortality and/or increased risk of tumor progression or relapsed in patients with cancer
  • The drug has high risk for seizures in patients with CKD; increase monitoring of these patients for changes in seizure frequency or premonitory symptoms
  • If serious Anemia and low reticulocyte count occurs during treatment, withhold treatment and check out for pure red cell aplasia.


  • No drug interaction involved in the drug Darbosis 40mcg Injection


The patients contraindicated with Darbosis 40mcg injection causes Uncontrolled hypertension After treatment causes pure red cell aplasia Allergic reaction

Pregnancy category is C Animal studies have produced an adverse reaction and there are no enough studies regarding usage in pregnant women.

When using Darbosis 40mcg during breastfeeding has no enough studies in women for describing infant risk. Considered possible risk before taking the drug while breastfeeding.

Store at 2°C – 8°C (36°F to 46°F) Do not freeze Protect from light and protect from light.

If dose is missed, have it soon before next dose reaches or skip the dose and follow normal timing Please Consult with the doctor.


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