Pharmacology - Curious for info about tolerance, duration of action, dosing. (Dexedrine.)

[nonhabitforming]

Hi!

AFOAF has a legal Rx for Dexedrine (Spansules) and I'm curious about various aspects, including dose and tolerance.

I'm really interested in knowing and have a lot of questions so if anyone might be able to shed some light that would be great.

SWIM takes 20mg's a day and would like to stay there for as long as possible. No interest in escalating until absolutely needed.
- Does tolerance build faster if some days 10mg's is taken, and others 20mg?
- Sometimes 10mg is taken upon waking and another 10mg 5 hours later. Does playing around with administration build tolerance faster? (Think of it as so called pulse dosing with antibiotics.)

- If one wants Dexedrine to be at peak performance for as long as possible, should one avoid other stimulants? Meaning, will taking caffeine with Dexedrine exhaust the body or build a tolerance to it in any way? For best effect should one avoid other stimulants?

Next one:
What effects usually build tolerance first? SWIM enjoys lack of appetite and more outgoing nature.

People often mention "holidays" and the gist is obviously well understood. Could someone be a little more particular in its explanation?

Is there any particular way these should or shouldn't be taken to get the most out of them for as long as possible? SWIM has permanent access to Dexedrine, but with a likely dosage cap at 20mg per day.


Thanks!