What is the difference between yellow phentermine pills and blue phentermine pills?

Phentermine comes as a tablet, capsule or orally disintegrating tablet (ODT). Depending on the manufacturer, exact appearance of the medication differs.

For example, Adipex – one of the most popular brands of phentermine in the US – is a white tablet with blue specs or blue and white capsule. However, generic 15mg capsules of phentermine are typically yellow and gray. The now-discontinued brand Ionamin was also a yellow capsule.

adipex p tablet adipex tablet generic phentermine 15mg ionamin
To see pictures and learn more about other brands of phentermine, visit our Phentermine Ultimate Guide.