When you are close to death, your body can convert a drug into lifesaving medicine.
Benefit: If you have used a drug in the past hour, and you are brought to 0 or fewer hit points, you may immediately gain 10 temporary hit points as a swift action. You may use this ability even if you are unconscious, but it cannot save you from an attack that immediately kills you.
Using this ability makes you sickened for 24 hours. You can end the sickness by using the drug again. Using this ability while you are sickened makes you exhausted. You can end the exhaustion by using the drug again; this leaves you only sickened, and another dose can end the sickness.