Okay this is gonna sound like a fever dream but I swear this is a movie!!!

Its driving me bonkers and I feel like im taking crazy pills! I've searched for months and I cannot figure out what the movie was called! I think it was on Netflix at one point but im not too sure!

I do not recall much but I know there was a woman who I believe entered a trial to get over her fear or something. They end up keeping her and others there in this space and something is happening to them. At one point I swear it was about getting over a fear or phobia of snakes but like I have no idea anymore after sifting through movies. But she ends up being changed by the drug they give her and I think her genetics are altered?

Again, it sounds crazy and maybe it was a dream but like... I could've sworn it existed! Please help me!!! Im desperate!!!!​