Anyone experience problems with qualitest

[AppleDelicious]

I have been taking Phentermine 37.5 prescribed by my doctor. I buy them at Costco because they are cheap. the pills used to be white with light blue dots, but apparently Costco switched manufacturers from Amide to Qualitest. The new pills have darker blue dots. (Apparently amide was bought by Activas.) Anyway these new pills make me nauseous all day and extremely sleepy. Has anyone else experienced this. Any ideas. Has anyone tried the pills by Activas, are they the same as the amide brand? The pills made by Amide worked great for me. I lost 30 pounds a couple summers ago and have kept all but 10 pounds off. I went back on using some pills I had left over, but when I filled this new prescription I have been so lethargic. Too sick to even workout. I've dropped like 3 pounds since Monday, but I think that's mostly because I'm too nauseous to eat.

[AuShucks]

I took the Qualitest brand back in August, they did absolutely nothing for me. My next batch was from Mutual, I had better results with these. What is the imprint on the Qualitest ? I still have the bottle, but not having a clue - I never looked at the imprint.

[AppleDelicious]

It's 50/30, which I have never seen before. What do the pills from mutual look like?

[AuShucks]

Mine were white w/ blue specks, and were stamped MP273.