Necrophagous (1971)

Original title: Necrophagus

Dead beings and a bloodsucking lizard-man populate this atmospheric and bizarre European gothic shocker! A scientist conducts strange experiments on the transmutation of human cells, which involves hibernating bodies and pumping chemicals into the bloodstream. One night he decides to perform these tests on himself and winds up buried in the local cemetery. When he returns to consciousness, the results will leave you screaming!