I've been thinking about purchasing some Phen but whanted to know a few things.

What is the difference in the yellow pill and the blue clear?

Why is the 15 mg pills more than the 30 mg pills?

And which pill do you suggest to someone that needs to lose about 100 lbs and is going to start WW tonight?????

That is enough questions for now. More to come when I think of them
Thanks for your reply
