Really old point and click game for windows?

I remember this point and click game I played a long time ago for windows but can't think of the name. There was one part where you walk into a room and there is some kind of drink on a table. If you drink it, you shrink and can't reach the doorknob to get out of the room, so you get stuck in the room and "die". That's really the only part I remember lol Anybody know what game this is?