For example, adding small quantities of alginate to give a gel absorbent capacity or thickness does not mean it can be used interchangeably with an alginate fiber dressing. Amorphous hydrogels vary most in their packaging, which includes foil packs, tubes, and spray bottles. Of practical concern to clinicians is the volume of gel in each package as it relates to reuse and sterility. Amorphous hydrogels can be retained over a shallow wound by covering them with a film dressing or a layer of petrolatum-impregnated gauze. In deeper wounds, it is not recommended to fill the entire cavity with gel but simply to line the wound with a quarter- inch la inch of gel and fill loosely with gauze.
Many amorphous hydrogels are available pre- impregnated into a gauze dressing.
Also, at least one brand of amorphous hydrogel is available in a freeze-dried format that converts to an amorphous gel on contact with fluid. Below are the available amorphous hydrogel dressings, their manufacturers, and toll-free numbers.