The Food and Drug Administration (FDA) this week declined to approve the use of MDMA — popularly known as Ecstasy or Molly — for MDMA-assisted therapy for treating PTSD, disappointing many Americans who suffer with intractable mental health conditions and had pinned their hopes on the treatment. There are only two FDA-approved treatments for PTSD, and MDMA would be the first to come on the market in decades. Friday’s decision comes at a time when there is growing interest in the use of alternative drugs to treat various mental health conditions, including depression and anxiety. Though MDMA ha…