How dangerous are adrenaline shots could someone actually use it to boost their strength in a fight they'd otherwise lose?

When I first saw this comedy-action movie about these kids who wanted to be super heroes years ago I remember there was this girl who kept a adrenaline shot on her as a last resort. At the end of the movie she was fighting this muscular woman she had pretty much no chance of defeating and she took her adrenaline shot out and made a half assed attempt to stab the woman with it hoping that she'd think it was poison. The woman fell for it took it from her and then stabbed her with it the adrenaline then went through her body and allowed her to overpower the woman and kill her. I thought it was a cool idea and seemed like something that could work at least in theory but I'm sure there's a reason why I never heard of someone doing something like that in real life. Would this not actually work? Do adrenaline shots not actually work the way natural adrenaline works? Would it be to dangerous? This all assumes that adrenaline shots would be readily available to the person planning on using it of course.