Medicine guide

Besremi

  • Prescription status not stated
  • Cancer treatments and immune-system medicines
Active substance
Ropeginterferon alfa-2b
Made by
AOP Orphan Pharmaceuticals GmbH

Quoted from the official source. Not yet reviewed by Mediclarum — the leaflet in your pack is authoritative.

What it is for

  • Besremi is indicated as monotherapy in adults for the treatment of polycythaemia vera without symptomatic splenomegaly.

From the official label · 2026-09-30 · European Medicines Agency

How it works

From the US prescribing label for the same active substance (BESREMi). It describes the substance, not this exact product.

Interferon alfa belongs to the class of type I interferons, which exhibit their cellular effects in polycythemia vera and essential thrombocythemia in the bone marrow by binding to a transmembrane receptor termed interferon alfa receptor (IFNAR).

Binding to IFNAR initiates a downstream signaling cascade through the activation of kinases, in particular Janus kinase 1 (JAK1) and tyrosine kinase 2 (TYK2) and activator of transcription (STAT) proteins.

Peak level after62–123 h
Half-life7 days
Mostly cleared after≈ 5 weeksfive half-lives — our arithmetic
PeakHalf gone5 weeks0
The shape is a standard model drawn from the two times above, not a measurement. How fast a medicine acts and wears off also depends on the dose, the form and the person.

Quoted from the prescribing label, sections “Mechanism of Action” and “Pharmacokinetics”. DailyMed · 2026-08-25

Same active substance, strength and form in other countries

Matched on active substance, strength and kind of form only. This is not a statement that the products are equivalent or interchangeable: other ingredients, release and approved uses can differ — ask a pharmacist before swapping.

Medicine passport: one printable page to show a pharmacist abroad

United StatesNo exact match for this strength and form

SpainNo exact match for this strength and form

CanadaNo exact match for this strength and form

NetherlandsNo exact match for this strength and form

SwitzerlandNo exact match for this strength and form

Details

Made byAOP Orphan Pharmaceuticals GmbH
Active substanceRopeginterferon alfa-2b
Used inCancer treatments and immune-system medicines
ClassificationL03AB15 · Cancer treatments and immune-system medicines
Authorised on2019-02-15
Last updated by the regulator2026-04-24
EMA product numberEMEA/H/C/004128

Source: European Medicines Agency — medicine data · 2026-09-30 · not reviewed by a clinician

Source: European Medicines Agency (EMA). Product information as published by EMA. Reuse terms: EMA legal notice (reproduction authorised).