Medicine guide

ENFLONSIA

As listed in the register: ENFLONSIA 105 mg, solution injectable en seringue préremplie

105 mg · solution injectable

  • Prescription only
Active substance
Clesrovimab
Made by
MERCK SHARP & DOHME (PAYS-BAS)

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

What it is for

Mediclarum has not yet retrieved and stored the official label for this product, so none of its text is shown here. Open the official leaflet

How it works

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

ENFLONSIA is a monoclonal antibody with anti-RSV activity [see Microbiology (12.4) ].

Peak level after6.5 days
Half-life44.0 days
Mostly cleared after≈ 31 weeksfive half-lives — our arithmetic
PeakHalf gone31 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 · 2025-06-20

Safety of the active substance

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

Must not be used by
  • ENFLONSIA is contraindicated in infants with a history of serious hypersensitivity reactions, including anaphylaxis, to any component of ENFLONSIA [see Warnings and Precautions (5.1) and Description (11) ].
Most common side effects

Most common adverse reactions were injection-site erythema (3.8%), injection-site swelling (2.7%) and rash (2.3%).

Quoted from the US prescribing label for the same active substance. Your own pack’s leaflet is the authority for your product. DailyMed

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

European UnionNo exact match for this strength and form

CanadaNo exact match for this strength and form

Details

Made byMERCK SHARP & DOHME (PAYS-BAS)
Active substanceClesrovimab
Strength105 mg
Formsolution injectable
Routeintramusculaire
Dispensing (as stated by the register)liste I
MarketedYes, according to the register
Reinforced monitoringYes — under reinforced monitoring, according to the register
Authorisation procedureProcédure centralisée
EU numberEU/1/25/1984
Name in the registerENFLONSIA 105 mg, solution injectable en seringue préremplie
Packs1 seringue préremplie en verre de 0,7 mL + 1 aiguille
CIS61116813
CIP133400930328613

Source: Base de données publique des médicaments · 2026-09-30 · not reviewed by a clinician

Source : Base de données publique des médicaments (ANSM / Ministère de la Santé), sous Licence Ouverte. Reuse terms: Licence Ouverte / Open Licence (Etalab).