Drug info - Butane/Propane effects

[salviablue]

I would like to find out about the effects of butane and/or propane on the mind and body. Accurate information on this subject seems quite sparse and difficult to find, especially regarding if "sensible" administration of the gas can or does cause the 'solvent' related deaths from 'gas huffing' directly.

SWIM wonders if there are any PWAY (people whom aren't you) out there that either have experience with, or information on, butane and/or propane and their effects.

SWIM has had a fair amount of experience with butane, propane and various mixes there of. S/he has experienced altered size perception and depth perception, strong aural hallucinations - especially a kind of 'nasty' repeating of certain types of sounds, a sort of metallic quality to everything, a kind of separation from everything where it feels as though one is stuck in an unembodied reality loop, and probably more that swim cant think of right now.
Adequate gas was discharged into a scrumpled up cloth, with the cloth then being placed onto the mouth and breathed through - in through the mouth and out through the nose - until the gas had evaporated (about 4-6 breaths). After every couple of breathes a lungful of air was taken i.e. the cloth was removed for the breath.
SWIM though it was important for air to be inhaled also.
SWIM actually found the effects not too dissimilar from that of N2O.

I do not recommend the inhalation of butane, propane, N2O, air or indeed any gas noxious or otherwise (although, neither do I recommend not breathing at all).

Concerning toxicity, I found this from the wiki:

Propane is nontoxic; however, when abused as an inhalant it poses a mild asphyxiation risk through oxygen deprivation. Commercial products contain hydrocarbons beyond propane, which may increase risk. Commonly stored under pressure at room temperature, propane and its mixtures expand and cool when released and may cause mild frostbite.

And this also from the wiki :

Inhalation of butane can cause euphoria, drowsiness, narcosis, asphyxia, cardiac arrhythmia and frostbite, which can result in death from asphyxiation and ventricular fibrillation. Butane is the most commonly misused volatile substance in the UK, and was the cause of 52% of "solvent related" deaths in 2000. By spraying butane directly into the throat, the jet of fluid can cool rapidly to –20 °C by expansion, causing prolonged laryngospasm, "Sudden sniffer's death" syndrome, first described by Bass in 1970,[3] is the most common single cause of "solvent related" death, resulting in 55% of known fatal cases.

Theres this about butane.
http://www.inchem.org/documents/pims...cal/pim945.htm

I didnt quite know where to stick this thread, but this seemed the most appropriate place to me(?).