Some of these pictures and descriptions may give away plot details that you might not want to know before watching the film.
This is a TV movie that was recommended to me, but all I could find was a Spanish language version, and there's not much information about the plot online that I can find, so I'm not sure exactly what's going on. J.O.E. is a genetically engineered super soldier made by government scientists, but he has a conscience and won't kill whoever they want him to kill, so they want to get rid of him. He goes on the run pursued by the Colonel and others until another supersoldier shows up and fights him.
J.O.E. has a cage in his basement labeled "Johnny Cobra" in which he keeps a live cobra that he uses as a source of extra power when he needs it, but I'm not sure how he uses the snake - if he ingests the venom, or lets the snake bite him.
We see a live cobra in several scenes. In one scene, the actor seems very close to the cobra, and he even seems to handle it. They might have switched to a non-venomous snake for the handling scene, and it's possible there was glass between the actor and the snake, or maybe they used the snake-charmer trick and sewed the snake's mouth shut so it couldn't bite the actor.