How do Constitution Track Poisons do damage?

[Belafon]

The Constitution Poison Track on page 415 says that once you are weakened "Every time the victim attempts a Fortitude save against the poison—whether he succeeds or fails—he loses Hit Points as per on initial exposure." Is this only damage specifically from the poison, or does it include a damaging effect (such as a creature's bite) that delivered the poison in the first place? Should this damage apply to Stamina Points first or directly to Hit Points?

More information:

• None of the constitution-track poisons on page 419 deal damage. Neither does the irradiate spell (which uses the constitution track.)
  
• In fact, I can't find any poison that has it's own damage effect.
  
• If it's the damage from the initial effect, that could get to be a pretty high amount (a soldier with an injection glove can easily do 10 points of damage at 3rd level).

[Jimbles the Mediocre]

Core Rulebook (pg. 415) wrote:

Upon initial exposure, regardless of whether she succeeds at her saving throw, the victim loses a number of Hit Points equal to the poison’s DC – 10.

In Starfinder, all poisons (not just Con-track poisons) do automatic damage when you're exposed to them.

[Hithesius]

As noted, all poisons deal damage on exposure; the Constitution track simply continues to deal damage whenever you need to make a save against its progression. As for your last question, while I would personally say that it ignores Stamina entirely - the exact wording is "loses Hit Points" after all - this is not a universal position.

[Belafon]

Thanks!

The new poison rules have really been a change for me.

[Metaphysician]

To note, literally nothing else in the entire game bypasses stamina, and the ability to bypass stamina, if it existed, would be absolutely useless for PCs. It would make poison, which is already much nastier than before, even more deadly. . . but only for players, not for anyone else.

Hence why it is illogical to assume that this one thing in the entire game bypasses the stamina system.

[Hithesius]

Not quite nothing since negative levels exist, and I'm not sure logic should start with the assumption of any sort of equivalent usability for PCs and NPCs. But I suspect we're not about to change each other's opinions on the matter any more than we did last time.