This made me actually laugh. A drug that cures obesity and addiction alone would be a wonder drug.
This one also improves about a hundred odd immune disorders, including being a better general allergy drug than just about anything. My own extremely rare and terribly painful immune disorder is basically entirely cured by it - it completely changed my life, making even sleeping far better. But not just me, I have friends who have lifelong terrible allergies gone, lifelong pack-a-day smoking addictions completely gone, and so on...
"Not really" is truly either the most pessimistic take I've ever heard, or hopefully just completely misinformed.