If someone were to put either oxycontin, meloxicam, or tramadol into an alcoholic beverage such as wine, could the victim s judgment be impaired? Would it cause them to pass out or act a lot more drunk than usual? Before I am assumed to be a psychopath, I am asking because my girlfriend is afraid that her stepfather is spiking her mother s drinks and we found these three prescriptions in the cupboard under a name that no one knows (needless to say, the guy is in possession of someone else s prescription which is a serious criminal offense). We ve noticed that after a week, there was one oxycontin missing, the meloxicam box is now completely missing, but no change on the amount of tablets in the tramadol box. We just want to know if any of these 3 medications would really mess up my girlfriend s mother after being dissolved in wine.