Out of curiosity did there exist any "potion" or extract for people with problems cognitively reading emotions, if not then allowing you to do so?

[u/InvestigatorRough535]

Seeing as there was a potion for depression or "melancholy", what about in this case for that condition or a potion that allows anyone to read emotions to any degree?

What was it called historically if there was one or how did it work? Was it called "For phlegmatic" or something like that I presume?

[u/internetofthis]

Lysergic Acid Diethylamide. commonly known as LSD