[derefr]

Fun anecdata: I have ADHD, and aphantasia.

Regular stimulant-class drugs make the aphantasia a bit less—I become able to picture things for about a second at a time before the image “flickers away.”

The tyrosine-hydroxylase promoter Bromantane (https://en.m.wikipedia.org/wiki/Bromantane) completely fixes the aphantasia for as long as I’m taking it.

(As well, the equivalent happens for music—I go from being unable to improvise even two notes of pleasant melody, to being able to hum decent songs, and also “rap”—i.e. improvise poetry with correct rhyme and meter. All in a flow state where I’m not really providing any conscious executive control to direct the results, only to constrain them.)