- It's a product that should be used with caution. Up until a few years ago, it was readily available in a lot of fat loss pills.
That it can be synthesised with a few other house hold items to make meta-amphetamines has led to its ban.
- No problems with use by females.
- Illegal.
- Like being on drugs? Of course it is: it has a similar structure to an amphetamine. Effects are much moderate; some have likened it to being on 'weak speed', though having never tried speed, I can't comment.
Pulse will quicken, you'll perspirate more and so be more thirsty, and you eyes will dilate. Those are some of the more immediate effects I can think of.
NOT at all necessary to weight loss. It's effect on metabolism will be tiny- at max around 3%. For perspective, in a normal day (2000cals), that would equate to an extra 60 cals burned. To lose a lb of fat, you'll need burn around 3500 cals.