Methoxy Polyethylene Glycol-Epoetin Beta
Indications
Methoxy Polyethylene Glycol-Epoetin Beta is used to treat anemia that comes with chronic kidney disease (CKD). It can be given to patients who are on dialysis and also to those who are not on dialysis.
⚠️ Always consult a registered physician before taking any medicine.
Pharmacology
Methoxy polyethylene glycol-epoetin beta is a chemically synthesized continuous erythropoietin receptor activator. It differs from erythropoietin because an amide bond is built in between methoxy polyethylene glycol butanoic acid and either the N-terminal amino group or the ε amino group of lysine, mainly Lys52 and Lys45. The result is a molecule of approximately 60,000 daltons, and the PEG part of it is approximately 30,000 daltons.
Compared with erythropoietin, methoxy polyethylene glycol-epoetin beta behaves differently at the receptor. It attaches more slowly and comes off faster. Its specific activity is lower in vitro but higher in vivo, and its half-life is longer. These properties are what make a once monthly dosing regimen possible in patients.
Methoxy polyethylene glycol-epoetin beta stimulates erythropoiesis by acting on the erythropoietin receptor on progenitor cells in the bone marrow. The natural hormone erythropoietin is the primary growth factor for erythroid development. The kidney produces it and releases it into the bloodstream in response to hypoxia. When hypoxia occurs, the hormone interacts with erythroid progenitor cells to increase red cell production.
Pregnancy & Breastfeeding
Pregnancy: There isn't enough data on the use of Methoxy Polyethylene Glycol-Epoetin Beta in pregnant women. Animal studies don't point to any direct or indirect harmful effects on pregnancy, on the development of the embryo or fetus, on childbirth, or on development after birth. Even so, take care when prescribing this preparation to pregnant women.
Nursing Mothers: No one knows whether methoxy polyethylene glycol-epoetin beta passes into human breast milk. One animal study did show that it passes into the mother's milk. Whether to continue or stop breast-feeding, or to continue or stop therapy with this preparation, should be decided by weighing two things: the benefit of breast-feeding to the child and the benefit of the therapy to the woman.
⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.
Dosage Reference
⚠️ Reference ranges from official sources only. Consult your doctor for personalized dosing.
Side Effects & Interactions
Side Effects
No side-effect data recorded yet.