Fen-Phen–Drug made of the combination of fenfluramine and phentermine for use as an appetite suppressant in the management of obesity.

Fenfluramine–Drug used as appetite suppressant for the short-term (a few weeks) management of obesity, approved by FDA in 1973. Contains dexfenfluramine and levofenfluramine.

Phentermine–Drug used as appetite suppressant for the short-term (a few weeks) management of obesity, approved by FDA in 1959.

Dexfenfluramine–Drug used as appetite suppressant for the short-term (a few weeks) management of obesity, approved by FDA in 1996. (Redux)

Levofenfluramine–Drug removed from fenfluramine (known to cause drowsiness) that created dexfenfluramine (Redux).