Effects - Does meth REALLY last 12 hours?

[theWasp]

The media constantly stresses the long-lasting nature of meth. My friend Swim has been snorting and/or smoking almost daily for about a month, but has slept every night (with varying success).


Swim told me that meth's euphoria doesn't last 12 hours, but rather only about 3-4 hours sometimes less. Swim definitely felt speedy for at least 12 hours, but needs to re-dose after about 3 hours in order to get back to a euphoric state.

In fact sometimes swim would become edgy and sort of depressed and even (paradoxically) tired 3 hours after dosing. He still felt quite speedy, and had no doubt that he was still "on meth." That's why swim doesn't think he has inferior speed. Swim noticed this happened at the beginning of his use, although it did get worse the more days in a row swim used.

Is this normal?

Swim noticed that some posts in this forum say that a fairly regular dose of meth has kept some users up for days without re-dosing, even when smoked or injected which are the two shortest-acting methods.

Swim also forced himself to eat fairly regularly--maybe 70-80% of his normal diet--and actually ate considerably healthier than normal because he chose to only force down those foods which would be best for him. He also took a serious multivitamin "Jamieson Power vitamins for Men" 3 times per day (as per the instructions). They contain "potent herbs, energy foods, active enzymes and minerals" (there are too many to list in this already-long post). Is it possible that these vitamins contained something that is causing this effect for swim?

actually, swim just told me that he remembers that the euphoria lasted longer on those days when he didn't have enough meth to re-dose very often, and so spaced out his doses or only took one dose for the day.

The euphoria of the first dose actually lasted longer when he didn't re-dose. Was this because swim tricked himself into enjoying a dose more because he knew he wasn't going to be able to have more in a few hours? Or is this a result of some sort of tolerance mechanism?

Perhaps the "long-lasting" nature of meth (at least the euphoric aspect) is just overblown by the media? Any insight or experiences to shed some light on this for swim?