The drug is a type of chemical substances. Once drugs enter the body, not by eating. Demonstrator pump, or in any manner cause adverse effect on the body and the mind, such as ecstacy, the pill, horses, etc.
The drug is a chemical. When the drug into the body, whether by eating or smelling pump in any way. Effect on the body and mind, such as ecstasy, medicine and so on.
The drug is a chemical one. When a drug into the body and whether by eat, smell, smoke, injection, or any way that caused adverse effects on the body and mind, such as ecstasy, the dope. And so on.