Anything else is opinion. With a strong opposing Congress, I my opinion is that a Trump presidency would be substantially limited in what damage it could accomplish. I do not seem as a dangerous demagogue in the same visceral way I disliked Pat Buchanan, Barry Goldwater or Huey Long.
These can be thought of as the old-fashioned group of antihistamines. Diphenhydramine (Benadryl) is one of the most common first generation H1-receptor blockers. Other examples include clemastine (Tavist), dimenhydrinate (Dramamine), promethazine (Phenergan) and hydroxyzine (Vistaril, Atarax).
Medicines of different classes include atropine, scopolamine, and hyoscyamine (all from nightshade), berberine (from plants such as Berberis and Mahonia), caffeine (Coffea), cocaine (Coca), ephedrine (Ephedra), morphine (opium poppy), nicotine (tobacco), psilocin (many psilocybin mushrooms), reserpine (Rauwolfia serpentina), quinidine and quinine ( ...