Fibrinolysin
Clinical data | ||
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AHFS/Drugs.com | International Drug Names | |
Pregnancy category |
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Routes of administration | ointment for local application, in combination with deoxyribonuclease | |
ATC code | ||
Legal status | ||
Legal status |
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ECHA InfoCard | 100.029.661 | |
Chemical and physical data | ||
Molar mass | ~ 13,800 g/mol | |
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Fibrinolysin is an enzyme derived from plasma of
Fibrinolysin attacks and inactivates
Both enzymes are marginally resorbed into systemic circulation because of their very high molecular weight and their macromolecular structure.
The activity of both enzymes is almost completely exhausted after 24 hours. Usually, it is necessary to repeat the application (and renew the dressing) every 6 to 8 hours until healing becomes complete.
The ointment is marketed by Pfizer under the brand name Fibrolan in a variety of countries (e.g. Switzerland). It is currently not approved in the USA.
Where approved, Fibrolan has been licensed on the basis of claimed good therapeutical experience, but adequate and well controlled studies are still lacking.
In the past, combinations with the antibiotic chloramphenicol were available, but because chloramphenicol in any form of application has led to aplastic anemia and death, these were banned. Additionally, combinations with the antifibrinolytic agent tranexamic acid have been withdrawn from pharmaceutic markets.
Indications
Enzymatic wound cleaning to assist healing of minor burns, superficial wounds,
Contraindications and Precautions
The ointment should not be used in patients with a known hypersensitivity to any ingredient. It should be used with caution in patients with hypersensitivity to bovine proteins in general and in pregnant women (category C), because no human data is available.
Side-Effects
Infrequently, local reactions such as increased pain or a stitching/burning sensation are noticed. No systemic anticoagulant activity has been seen due to the exclusively local character of treatment.
Interactions
Not known.
See also
External links
- Swiss scientific product information
- Birk Y, Khalef S, Jibson MD (September 1983). "Purification and properties of protease F, a bacterial enzyme with chymotrypsin and elastase specificities". Arch. Biochem. Biophys. 225 (2): 451–7. PMID 6226244.