Introduction
Darboren 40 is used in the treatment of anemia that may have occurred due to chronic kidney disease or chemotherapy. It works by stimulating the bone marrow to produce more red blood cells.
Darboren 40 is a medicine that needs to be used with utmost care because it can lead to serious side effects. It is important that you seek treatment from a doctor who is experienced in providing this medicine therapy. You should follow all the directions of doctor strictly. It is given under the supervision of a healthcare professional. However, you should not take it, if you have any known allergy from this medication.
It may cause side effects like high blood pressure, and hypersensitivity. You should check your blood pressure regularly while taking this medication. Inform your doctor if there are symptoms of very high blood pressure such as severe headache, problems with your eyesight, nausea, vomiting or fits (seizures).
Your doctor may get your blood tests done regularly to monitor the levels of salts (electrolytes such as potassium), haemoglobin and blood cells in your blood. You should stop taking it and consult with doctor if you develop shortness of breath or skin rash.
Uses of Darboren 40
- Anemia due to chronic kidney disease
- Anemia due to cancer chemotherapy
Side effects of Darboren 40
Common
- High blood pressure
- Hypersensitivity
How to use Darboren 40
Your doctor or nurse will give you this medicine. Kindly do not self administer.
How Darboren 40 works
Darboren 40 is an erythropoiesis-stimulating agent (ESA). It works by stimulating the bone marrow (soft tissue inside the bones which produces red blood cells) to produce more red blood cells.
What if you forget to take Darboren 40?
If you miss a dose of Darboren 40, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not double the dose.
Indication
Anaemia of chronic renal failure, Anaemia in chemotherapy patients
Adult Dose
Chronic Kidney Disease-Associated Anemia
CKD not on dialysis
Recommended starting dose: 0.45 mcg/kg IV/SC q4weeks
Consider initiating ESA treatment only when the hemoglobin level is <10 g/dL
If the hemoglobin level exceeds 10 g/dL, reduce or interrupt ESA dose and use the lowest dose sufficient to reduce the need for red blood cell transfusions
CKD on dialysis
Initiate ESA treatment when the hemoglobin level is <10 g/dL
If the hemoglobin level approaches or exceeds 11 g/dL, reduce or interrupt the dose of ESA
Recommended starting dose: 0.45 mcg/kg IV or SC qWeek or 0.75 mcg/kg q2weeks; the IV route is recommended for patietns on hemodialysis
Intravenous route recommended for patients on hemodialysis
Chemotherapy-Related Anemia with Nonmyeloid Malignancies
2.25 mcg/kg SC qWeek OR 500 mcg SC q3Weeks
If Hgb increases <1 g/dL after 6 weeks, may increase dose no more than 4.5 mcg/kg
Reduce dose by 40% if rapid increase in Hgb (eg, >1 g/dL in 2-week period)
Discontinue if no response after 8 weeks
Child Dose
Chronic Kidney Disease-Associated Anemia
Initiate treatment when the hemoglobin level is <10 g/dL
If the hemoglobin level approaches or exceeds 12 g/dL, reduce or interrupt the dose
Recommended starting dose for pediatric patients (<18 yr) is 0.45 mcg/kg SC or IV qWeek
Patients not receiving dialysis may also be initiated at a dose of 0.75 mcg/kg q2Week
Chemotherapy-related Anemia
Safety and efficacy not established
Renal Dose
Chronic Kidney Disease-Associated Anemia
CKD not on dialysis
Recommended starting dose: 0.45 mcg/kg IV/SC q4weeks
Consider initiating ESA treatment only when the hemoglobin level is <10 g/dL
If the hemoglobin level exceeds 10 g/dL, reduce or interrupt ESA dose and use the lowest dose sufficient to reduce the need for red blood cell transfusions
CKD on dialysis
Initiate ESA treatment when the hemoglobin level is <10 g/dL
If the hemoglobin level approaches or exceeds 11 g/dL, reduce or interrupt the dose of ESA
Recommended starting dose: 0.45 mcg/kg IV or SC qWeek or 0.75 mcg/kg q2weeks; the IV route is recommended for patietns on hemodialysis
Intravenous route recommended for patients on hemodialysis
Contraindication
Hypersensitivity, uncontrolled hypertension.
Mode of Action
Darbepoetin alfa is a biosynthetic form of erythropoietin. Recombinant human erythropoietin with sialic acid additions to enhance stability; stimulates erythropoiesis via division & differentation of progenitor cells in bone marrow to induce the release of reticulocytes from the bone marrow into the bloodstream to become erythrocytes.
Precaution
Hypertension; history of seizures; hepatic impairment; sickle cell anaemia; sudden stabing migraine-like pain (warning sign of hypotensive crisis); exclude other causes of anaemia; ischaemic vascular disease; thrombocytosis; epilepsy; malignant disease; increase in heparin dose may be needed; increased risk of thrombosis when used for anaemia before orthopedic surgery; CV disease including recent MI/cerebrovascular accident. Monitor haemoglobin, BP and electrolytes; platelet count for 1st 8 wk.
Lactation: not known if excreted in breast milk, use caution
Side Effect
>10%
Cancer patients
Fatigue (33%),Diarrhea (22%),Edema (21%),Fever (19%),Dizziness (14%),Arthralgia (13%),Headache (12%),Death (10%)
Chronic renal failure patients
Infectious disease (24%),Hyper/Hypotension (20%),Spasm (17%),Upper respiratory infection, Headache (15%),Diarrhea, Vomiting (14%),Nausea (11%),Peripheral edema, Dyspnea (10%),Abdominal pain (10%)
1-10%
Cancer patients
Myalgia (8%),Hypertension (3.7%),Pneumonia (3%),Dyspnea (2%),Vomiting (2%),Pulmonary embolism (1.3%)
Chronic renal failure patients
Arthralgia, Cough, Fatigue (9%),Limb pain (8%),Dizziness, Fever (7%),Death (6%),Edema (6%),Anemia, DVT, red cell aplasia (5.6%),Cardiac arrest, Cardiac dysrhythmia, Congestive heart failure (5%),Myocardial infarction, CVA(2%)
<1%
Cancer patients
Hypertensive encephalopathy (0.6%),Seizure (0.6%),Chronic renal failure patients,Hypertensive encephalopathy (<1%),Seizure (<1%),Transient ischemic attack (<1% )
Frequency Not Defined
Tumor progression,Venous thromboembolism,Immune hypersensitivity reaction (rare ),Injection site thrombosis
Pregnancy Category Note
Pregnancy
Limited available data on pregnant women are insufficient to determine a drug-associated risk of major birth defects or miscarriage; in animal reproductive and developmental toxicity studies, drug increased early post-implantation loss at doses approximating clinical recommended starting doses; consider benefits and risks for the mother and possible risks to fetus when prescribing to a pregnant woman
Lactation
There is no information regarding presence of drug in human milk, effects on breastfed child, or on milk production; the developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for therapy and any potential adverse effects on breastfed child from drug or from underlying maternal condition
Interaction
Antagonism of hypotensive effect and increased risk of hyperkalemia with ACE inhibitors and angiotensin II receptor antagonists. Ethanol.