The Fury of the Wolfman is one of a series of Spanish films starring Paul Naschy in the title role. This one was apparently made in 1970 but not released until 1972. There were about 12 of these, but they are not sequels, are independent of each other and can be watched in any order. This is the first one I remember seeing, and it was fun enough, with a wild hairy man, a cold controlling female scientist, a young woman in love with the wild man... What's not to like?
The video presentation below is hosted by Count Gore De Vol:
Weird Wild Realm says, "This is one of the all-time worst werewolf films in existence, but so "busy" with ridiculous content that it can be great fun". MSN has some information.