Thank you so much for playing!!
founding medication on the way is definitely a great idea since right now the player is just wandering in the hospital looking for exit. To answer your question, the "way to win" is keep fighting off ghost in the hallucination and looking for the exit in the hospital.
It is definitely a bit confusing since you can chug meds or beer at any time but if given more time I would have done something that makes it more clear. Thank you for your advice!! And if you like the plot, I think you would really enjoy the other ending as well:)