Phentermine comes in yellow or blue capsules and tablets. What's the difference?

Question

Are they a different brand? I thought I read somewhere that the yellow is a time released kind. ??

Answer 1

Phentermine is a generic drug. Different manufacturers make it different ways. Capsules usually are time release. There are also different strengths, 15, 30, 37.5.
The Phentermine site used to have photos of various types.