Cocaine comes in two different forms: powder, which an addict snorts, and crack, which they smoke. It is either a white crystalline powder or an off-white chunky material, a highly addictive recreational stimulant. It is smoked, injected into the circulation, and snorted (inhaled via the nose). The substance has a significant impact on the nervous system by elevating hormone and neurotransmitter levels, which activate important pleasure areas in the brain and cause euphoria to be considerably amplified. Soon after starting cocaine, an addict develops a tolerance to it and steadily raises the dosage to achieve the same high.
The drug aids in the brain's release of "feel-good" chemicals. The brain's receptors for the cocaine-induced dopamine rush could eventually become desensitized.