I think it's a waste of time searching Pre-Seed in Qatar, I even tried in Dubai but no luck. Last time, I bought it for a friend of mine was from UK.. Ask your friends or relatives back in US or UK to courier it. If I can find more info, will keep you posted. Thanx

Also, here's link to the side effects :

http://www.ehow.com/about_5030808_preseed-side-effects.html