Body 20 Trolls, Body 1 Humans, etc. Out of combat, you'd obviously tailor the dose to the person.

Does DMSO say it goes through vehicle armor? (IMG:style_emoticons/default/biggrin.gif) Two can play at the 'there's no rule!' game. (IMG:style_emoticons/default/wink.gif)

Doesn't have too. Aerosol the compound in question, and add DMSO. If the car has an air intake, it will get in.
Also there is nothing special about vehicle armor that I'm aware of which allow it to ignore the penetration effects of noxious agents.

This is what life support and enviroseal are for. (IMG:style_emoticons/default/biggrin.gif)

Free Spirit Health
Spirits are creatures of mana and have no real bodies to
speak of. They can still become hurt and suffer the same dice pool
modifiers for Stun or Physical damage that their metahuman
counterparts do. Spirits also heal at the same rate as metahumans
(p. 242, SR4). A spirit with a full Physical or Stun Condition
Monitor is disrupted.
Spirits that are disrupted, whether it be by damage, being
forced through an astral barrier, or some other cause, are compelled
to return to their native metaplane. If the spirit is disrupted
by a cause other than damage, its Physical Condition Monitor is
filled. The spirit may not return to Earth until it has completely
healed, again using the same rules as metahumans. Additionally,
unless the spirit has an active Friendship Pact, the spirit may not
return for a number of days equal to 28 minus its Force.
If a spirit takes enough damage to overflow its Physical
Condition Monitor by more than its Willpower attribute, its Force
is reduced by 1 when it returns to its home metaplane. Its natural
maximum attributes are also reduced, which may cause the reduction
of one or more attribute ratings. If a spirit’s Edge is reduced, it
also loses at least one Power Point worth of critter powers.
First aid and medicine and medicine do not work on spirits,
although they may work on a possessed vessel. Any healing
or repair given to a vessel applies only to that vessel’s Condition
Monitor, and not to the spirit’s. Free spirits may not use cyberware,
bioware, nanoware, transgenics, drugs, or anything else that
requires an organic body.

In other news, I can't decide if I'm glad or depressed that the writers knew their players were so stupid that they'd try using First Aid or getting 'ware on a Free Spirit PC. :/

They mention in fluff that a spirit, regardless of looking like it is made of X, is actually not, so they just added this as crunch to reinforce that, which is good, because I've seen plenty of people that forget that a spirit isn't actually made of X.

This line is bugging me, now:

Dosages for toxins vary considerably from substance to substance, and prices and descriptions given are for a standard dose effective against most metahuman physiology.

MOST metahuman physiology? Let a bit of wiggle room, there? What metahuman physiology are they leaving out?

Irion: unless it has Realistic Form (Talkie Toaster). (IMG:style_emoticons/default/biggrin.gif)

@Karoline

Well, I guess they should have reinforced it a bit more. A manifesting spirit should not be able to work as an Toster. (Or at least should have to defend against the damage caused by electricity.)

So if a spirit is possessing a vessel that is not immune to poisons and can use drugs, then the spirit can be hurt by poison and use drugs, but if it is a materialization spirit or in a body that is not hurt by poison, such as plasteel or dead wood, then it can't use drugs or be hurt by poison.