Side-effects aside, another common diet pill pitfall is that the use of diet pills can sometimes result in unhealthy weight loss methods. This is particularly true for people who take diet pills to rapidly lose weight, but who don’t make healthy changes to their diet or activity level.

Because they both act as sympathomimetics, Phentermine and Phentramin-d have some of the same side effects. However, with both diet pills you will also experience appetite suppression and a boost in energy and mood.