Spongostan® absorbs up to 50 times it's weight FILM 20 x 7 x 0,05 cm, Pack with 20 pcs Spongostan® by Johnson & Johnson has become synonymous with absorbable hemostatic. Spongostan® is used world wide to stop mild bleeding. Spongostan® is available in a number of different versions and is basically a gelatin sponge with a neutral pH. The bleeding should stop within 2-10 minutes. Spongostan® is absorbed within 4-6 weeks.