<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
What is crack cocaine?
<|assistant|>
Crack cocaine is a form of cocaine that is processed from cocaine hydrochloride into a rock crystal form that can be smoked. Crack cocaine produces a powerful euphoric high, but its effects are much shorter than those of cocaine and it is often more expensive. Crack cocaine has been around since the 1980s, and it has caused great public health and societal concerns due to its addictive properties and dangerous side effects. Crack cocaine has been heavily criminalized in many parts of the world and it is illegal in most countries. It is listed as a Schedule II substance under the Controlled Substances Act in the United States.