People should implant a moveon cpu in their heads and this should make them immune to drugflash.
Personally i would rather see DF removed and the person start to take damage over time from too many drugs/toxins/poisons in the body. Coupled with some kind of anti-toxin to kill off that poison which will take time to inject (thinking nanite style) would be a good one.
This works in multiple ways.
1. no df. keep fighting.
2. still limits drug intake.
3. nanite cleanser stops player getting heals etc from friendly ppu so forces them to figure out at what point its more beneficial to remove stacks of drug "debuff" or get a heal to ride out damage taken.
Sorry if this is a hijack but im in one of my genius moods today.