If a character is addicted to a drug and passes his excessive drug use test, the level of fatigue is removed, but does the level of fatigue return once the dose wears off, assuming the addiction is not removed? Fairly relevant for Chem Hunters, who start with an addiction that cannot be removed (Though admittedly having unnatural strength and toughness at up to 2 is pretty sweet for humans).

What do people think? I'm really confused on the exact mechanics for drug addiction in this system and I'm wondering if anyone has a clearer grasp of it.

I don't know, but I have a related question.

Do you test for addiction after EVERY use, or after more than one use in a short period?

I didn't know alcohol was a crazy addictive as written in RAW.