What are drugs?

When a particular substance is considered a drug? Different answers exist for this question. Sometimes as starting points are taken the effects of the substance, sometimes - what the law says about the substance.

Concerning the effects, the drug is a substance, whose use changes the functioning of the brain and therefore influences the psychological, emotional and physical state of the person.

Concerning the law, in the Bulgarian legislation the substances which are connected with the drugs, are separated in two groups:

• Plants and substances with high degree of risk for the public health because of the harm effect of their abuse. These plants and substances are forbidden for application in the human and veterinary medicine;
• Substances with high degree of risk, applicable in the human and veterinary medicine.