I bought high strength 5-htp but it made me feel sick and no different after a fortnight at all but maybe will try it again and stick with it as I read it takes time to kick in like proper ad's...or prescription ads. I have been given Citalopram but have such a terrible start up on it I have had the pills three weeks now and just won't take them as I'd end up in the emergency room with panic attacks and get so many other start up effects and it never kicks in with me for about 4 months. Tried Mirtazapine instead and though no side effects as such it just made me more ill. I am normally ok but it's blasted PMT so for about a week I feel super low and just want to cry, try to go out walking which helps and am eating healthily but have been this way ever since I had my son 13 years ago. I got my 5-htp off AMAZON and about 400 people had said brill things about it and very few bad, so I maybe just need to take it properly this time.