Q1) What are the different forms of ketamine?
Q2) What would you do if you knew your friend took ketamine?

Q1)ketamine also known as special K,Vitamin K or Cat Valiums.
Q2)I would stop them from taking ketamine as when in large doses of ketamine, it produces effects in humans similar to phencyclidine (PCP) such as dream-like dissociative states and hallucinations. It has a number of contradictory effects, including stimulant, sedative, anesthetic, and hallucinogenic properties. Users describe feeling like they are drunk, stoned, and tripping all at once.