Stimulants Vasoconstriction At The Thought Of Taking Dexedrine

[Ksa]

Anyone know which brain chemicals are involved in this and how it can be countered? Over a few hours the effect can be very noticeble and it occurs in absence of any substance.

 

[alt 14]

http://en.m.wikipedia.org/wiki/Vasoconstriction

We've seen this happen with longterm drug abuse(4mmc), but vasoconstriction can happen without drugs mate. I don't think it's you doing it by thinking about drugs personally, but I'm no expert on the subject.

 

[Ksa]

It differs from placebo in the sense that, if I lie to myself and say I'm gona take it, knowing that I will not be able to because I have an exam, a trip or an interview, the vasoconstruction does not occur. It occurs when I know in my mind that the use is imminent and the probability for something to arise that would stop it from happening is slim to none.

 

[sekio]

this kind of adaptive response is normal. happens with most harder drugs. it's just the human body being wierd.

sometimes in the morning when i take my caffeine I feel wired not even 5 seconds after it's gone down my throat. even though i know there's not caffeine coursing through my veins I still feel on edge.

ask the heroin users. most of the time they will feel much better if they just know they can cop a bag or two! they don't even have to use any...

 

[Moredopamine]

this kind of adaptive response is normal. happens with most harder drugs. it's just the human body being wierd.

sometimes in the morning when i take my caffeine I feel wired not even 5 seconds after it's gone down my throat. even though i know there's not caffeine coursing through my veins I still feel on edge.

ask the heroin users. most of the time they will feel much better if they just know they can cop a bag or two! they don't even have to use any...

There are a million examples of this: the study that found giving people a drink they thought contained alcohol made them act drunk and act confident, the fact that a placebo works for depression in 1/2 of cases, and the way cocaine users feel a rush at just the thought knowing they're about to do cocaine.

I get this when I'm really anxious and take my lorazepam: I feel immediately relived, even though, like you say, the drug obviously couldn't possibly be in circulation yet.

I used to get chest pains from adderall, and even thinking about the drug would make the chest pains appear (as it turns out, there wasn't even anything wrong with my heart, and once I was told this, the chest pains magically disappeared!)

The mind is a powerful thing. Interestingly, these 'placebo like' effects occur in the same emotional regions of the brain (nucleus accumbens, etc) associated with drug pleasure and addiction.

To answer your question: It can't be countered completely, but realizing that it's just a drug-associated memory and learning to keep your mind off it might help.