insomnia
"One of the most legitimately helpful drugs I have ever taken. Doesn't lose potency, nonaddictive, almost guaranteed to put you to sleep. I've been on it for years and it has helped give me a more restful and relaxing sleep than any other drug. Just avoid going too high-- for me, past 300mg it would clog my sinuses pretty bad for some reason, making it impossible to sleep. Luckily, 200mg works just as well."