This is a conversation for your MD.
The students that I see who take these medications don’t do as well as those on stimulants, but they cannot take the stimulants due to side-effects or medical contraindications. They tend to work better than nothing, but not as well as stimulants. However, this is probably an unfair comparison because of the other medical issues at play compared to someone with ADHD alone.
For example, a lot of my students whose ADHD appears to be caused by prenatal drug exposure often take the BP meds or antipsychotics (which basically just tranquilize them).