Cocaine

Can be inhaled through the nose and absorbed into the nasal tissue or dissolved in water and injected into the bloodstream.

What does it Do to the Brain?

• Can constrict blood vessels in the brain
• Increases levels of dopamine 
• Causes excessive amounts of dopamine to build up
• Disturbed sleep patterns
• Loss of appetite

Short Term Effects

• Intense high, followed by intense depression
• Diet and sleep problems
• Increased risk of heart attack, stroke, seizure or respiratory failure
• People can feel paranoid or angry even when they aren't high
• Intense drug craving

Long term Effects

• Damage to blood vessels of heart and brain
• Malnutrition, weight loss
• Severe tooth decay
• Liver, kidney, and lung damage
• Severe depression