[ar0827]

What is the actual difference between the 30 mg and the 37.5 mg phentermine? I mean I know that it is a difference of 7.5 mg. But is the only difference the dosage?

[susanpesek]

Actually, it's not even 7.5 mg, as crazy as that sounds! The 30 mg can be timed- release and many say the 30 works better for them.