Ultra-Tech Dose size

[Bruno]

It would be "unrealistic" for a wide variety of chemicals to have the same volume and weight for effective dosage.

That said, it's just as unrealistic for there to be one universal dosage for men, women, thin, fat, short, tall, young, and old people, never mind metabolic quirks or drug interactions.

I would guess it's quite deliberate that no specific metrics are given for doses, just as no specific metrics are given for power consumption. It's a game-able abstraction, as the only other sensible approach is "lots and lots and lots of detail".