[zenjeze04]

I have been taking Phentermine for 3 months. I used to feel very awake and energetic, now I am getting so sleepy after I take it that I just want to lay down some place. Does anybody know what is happening? I asked my doctor and was told that this was very unusual and no other answer was given. [?]

veda l. spears

[Insomniac]

Sounds like you've built up a tolerance to phentermine. I don't know why your doctor is scratching his head; it's pretty common. I alternate appetite suppressants to avoid building a tolerance, and don't take them every day. I will usually take phentermine for 2 days, then Didrex or Tenuate for a day or two, then stop for a day or two. Then start over. If you take long acting versions, like the 75mg Tenuate or the 37.5mg phentermine, after a couple of days I find that I have enough built up in my system to go the couple of days without. At the very worst, I may take a short acting one in the late morning/early afernoon on the 2nd day.

If you've already got a tolerance to phentermine, which is sounds like you do, you need to get completely off it for a few weeks at least. Hope this helps.

[resist0r]

Try adderall xr, will work long term.