Grrl Power V: Probably Not an Octopus

[Radar]

Diaphragm and accessory breathing muscles are skeletal muscles and not under autonomic control. If her skeletal muscles are out she can't breath.

I am neither a biochemist nor a medical personel, so this is a wild guess, but maybe one can get a right ammount of poison that would relax skeletal muscles enough that any movement would not be feasable, but breathing would still be possible if uncomfortable? I would expect it to be difficult to gauge the ammount though since it would be heavily mass-dependent just like it is a very delicate task to induce medical coma.

Still, If you're wondering how she eats or breaths and other science facts... You probably know, where this would go.