lai,

I get mine from my primary physician. That's one thing he has no problems giving me plenty of, lol- but it's because he believes if I just get plenty of uninterrupted sleep at night, my pain will be less severe. #sigh I don't think it's very expensive, either- if you go with the generic. Also, above poster is right- it's an anti-depressant which they say is non-addictive but has been proven to help treat insomnia. That's no doubt why the place you tried to get it wouldn't give it to you.