How is the cocaine being administered?
And the best thing to do is wait as long as you can before the next hit, line, bump...
You can burn out very quickly on cocaine.
And if you're IVing, and not waiting too long between shots, you're blood levels will rise very rapidly and very easily become toxic. Remember the half life of coke is 1 hour. Meaning, it takes 1 hour from the last time you shot for half of that amount to clear out of your system.
And when your blood reaches these higher levels, it's not only dangerous, but starts to become less of a pleasurable rush and more of an anxious, jittery thing.
If you're doing lines or bumps, like I said before, try to abate or atleast diminish your need to do more immediately. The addictive quality of cocaine lies in the compulsive anticipation of it's highly reinforcing and very short-acting stimulant nature. You know, the immediacy of the reward as connected to the action. Because it is so immediate, the action can very easily become detached from the physical high.
If you fall out of a groove and feel you need to experience a high before you've really comedown from the last, you won't really be experiencing anything of value and will be putting yourself in a far worse place.
In reference to your question, however, you build a short term tolerance to it because you feel like you've come down from the previous administration psychologically when the drug is still acting within you physically. Since the psychological urge is so strong, one often takes the next hit before they're body is physically "down" enough to feel it as it felt it in the previous hit.
------------------
"Everybody gets corrupted. You have to have a little faith in people."
-Manhattan
"So that happened"
-State and Main
[This message has been edited by sparklr (edited 03 November 2001).]