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Birch bark, sold under the brand name Filsuvez, is a medication that is used to treat epidermolysis bullosa.
The most common side effects with Filsuvez include wound complications. Other common side effects include skin reactions at the application site, wound infections, pruritus , and hypersensitivity reactions.
Epidermolysis bullosa is an inherited disease of the skin that makes the skin very fragile and causes severe blistering and scarring. Filsuvez is used in two types of epidermolysis bullosa, dystrophic epidermolysis bullosa and junctional epidermolysis bullosa, to treat partial-thickness skin wounds. These are wounds where the upper layers of the skin have been damaged.
Filsuvez is indicated for the treatment of partial thickness wounds associated with dystrophic and junctional epidermolysis bullosa in people aged six months of age and older.