I take Phendimetrazine. I have been on it for over a year and I still get great energy & good appetite control. I do have weight to lose, but I really like taking it for the energy boost for exercising. My dosage is one 35mg tablet, three times a day. recommended before meals. These small pills can be cut in 1/2 or 1/4. I never take more than 3 a day, however I do alter the dosage. The afternoons are the worse for me as far as energy goes. This is also my only time to get in some exercise so I take 1 & 1/2 tablets. That what works for me and of course I have always watched B.P.
I have tried the name brand Bontril, which was more expensive.
For me it was just not as good as the generic. The 105mg time release was a no energy bummer.