The present invention relates to microspheres useful for embolization
which comprises polyvinylalcohol. The present invention also relates to
an injectable suspension suitable for embolization which comprises the
polyvinylalcohol microspheres and a suitable liquid carrier. The present
invention further relates to a method for prophylactic or therapeutic
embolization which comprises administering to a mammal an injectable
suspension containing the polyvinylalcohol microspheres and a suitable
liquid carrier. Finally, the present invention relates to a process for
producing the polyvinylalcohol microspheres.