Its like any drug your doc orders for u. There is a generic brand for every drug that is out there.
Phen is the generic brand of fastin some say it works the same for them some say fastin works better. Of course the drug store says they are both made of the same thing. I guess its comparing a cheaper brand of toilet paper to charmin. Yes they are both the same(toilet paper) but do they have the same effect?.lol
I like to wash my clothes in Gain but found a cheaper brand made of the same stuff and they compared this particular one to Gain. $3 Cheaper. I used it and my clothes wasnt as bright and I itched like hell.lmao.
Guess what it boils down to is what your willing to pay and with most things u get what u pay for.
I used Phen i'm off now but I was taking 37.5mg and it did everything but suppress my appetite. I was happy with it
Hopefully it works well for u. But with anything u have to work with it. Good Luck to u and I wish u much success on your weightloss. Drink yo water and take care.