Medicine guide

ENFLONSIA

As listed in the register: ENFLONSIA

105 mg · solution

  • Prescription status not stated
  • Antibiotics, antivirals and antifungals taken into the body
Active substance
Clesrovimab
Made by
Merck Canada Inc

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

What it is for

Medicine groupAntibiotics, antivirals and antifungals taken into the bodyJ06BD10

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

SpainNo exact match for this strength and form

FranceNo 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 byMerck Canada Inc
Active substanceClesrovimab
Used inAntibiotics, antivirals and antifungals taken into the body
Strength105 mg
Formsolution
ClassificationJ06BD10 · Antibiotics, antivirals and antifungals taken into the body
Routeintramuscular
Dispensing (as stated by the register)SCHEDULE D
StatusApproved
MarketedNo — authorised but not currently marketed, according to the register
DIN02565145
DPD drug code106778

Source: Drug Product Database · 2026-09-30 · not reviewed by a clinician

Contains information licensed under the Open Government Licence – Canada. Reuse terms: Open Government Licence – Canada.