Vasoconstrictors and MPB (Adderall, caffeine)

Posting this thread to get your opinions/insight. If minoxidil is the opposite of a vasoconstrictor, does this mean stimulants could have the opposite effect of min and elicit the follicle to squeeze shut even faster in people prone to MPB?  Additionally- If this is the case- would the effect be negligent at best? Could be totally wrong but I’d like to hear from someone who knows a lot about follicle mechanisms.

Although Adderall has known hair loss effects, I don’t believe it is related to its vascular properties.  Caffeine stimulates hair growth so you got it wrong here.