Any drug with a transdermal delivery system, fentanyl most likely.
Cocaine is the most used illegal drug in Colombia.
Marijuana is definitely the most widely used illegal drug in the US. Marijuana is the most widely used illegal drug.
Unless you purified it first, no. After that, anything can be used to make illegal drugs.
Cannabis is the most common illegal drug used by youth.
The most prevalent illegal drug is marijuana, about 40% of the US population have used it at least once in their life.
Most used illegal drug is Cannabis. (Hash, pot, weed, marijuana,...). Most used legal drug is alcohol. (and in some countries alcohol is illegal). Most casualties are caused by alcohol, followed by tobacco.
Marijuana
Methamphetamine
Marijuana is the most used illegal drug in the world.
Yes, drug illegal sometimes.
Drug is made illegal by the types or kind of that drug!
For Heroin Opium Poppies.