It's really hard to lose weight

Since I like to cook and eat a lot,it is hard for me to lose weight.So I think if I take an appetite suppressant,it will supress my appetite and eventually lose some weight.I was searching for an appetite suppressant on the net and I was stumbled in a site where they featured a diet supplement called Phenphedrine.My question is,is it safe to use?I really don't know about this product.Though there are reviews of the customers on the website but still,I have to be very careful in buying any product.It's better to consult first my doctor if I am allowed to take it or not and if it is safe to use.