New secret chem fentanyl

[aft2001]

Well, as a possible alternative to this, perhaps Fentanyl (or better yet, some other drug due to the real life connotations) as a secret chem (or just difficult-to-acquire-chem) could have the following properties:

• Makes you entirely unable to feel pain
  
• You are unable to see your health, even with a health implant (somehow, don't ask, game balance reasons)
  
• You are entirely immune to stuns
  
• You move at full speed regardless of health and temperature, and being in combat
  
• Your body essentially stops trying to fix itself. As in, bleeding doesn't stop (as your body isn't clotting the wound), blood doesn't regenerate (as your body isn't making new blood cells), your OXY damage doesn't recover (as your body is not trying to distribute more oxygen), and any genes that recover health stop working (as the body isn't using those genes to fix itself). After all, it's such a powerful pain killer that your body doesn't even know that something is wrong.
  
• Is highly addictive
  
• Medicines only restore half the health they normally do, as your body isn't properly metabolizing them to actually use them
  
• COULD have a low metabolism rate, so that it stays in your system for longer
  
• Could have very nasty withdrawal symptoms, such as stuns and vomiting and collapsing
  
• Overdose is EXTREMELY dangerous as the threshold could be low (maybe as low as 15u), and causes massive TOX and brain damage as well as fainting, among other nasty reactions
  

While there are a lot of drawbacks to this proposed chem, the total immunity to stuns and speed debuffs caused by injury/temperature are absolutely useful. However, the limitations exist to serve as something for players to work around in their strategies, as they must be cautious of the injury and overdose and addiction risk.