Every time I took enough robatussin to get high I just puked. The only way it EVER was enjoyable was once when I was like 16 I took some and smoked pot with some girl my roommate brought home that he wanted to sleep with but she wasn't into him or something and somehow she ended up hanging out in my room and sleeping with me (I honestly am pretty foggy on the datails I just remember getting messed up with this girl and waking up next to her lol).