Illegal drugs
Simulants
Simulants cause addiction and wakefulness. one example of simulants is caffeine
depressants
depressants causes fatigue and confusion, and example of depressants are alcohal
Narcotics
narcotics causes numbness and vomiting, an example of narcotics are advil
hallucinogens
Hallucinogens cause dilated pupils and addiction an example of a hallucinogens is mushrooms
inhalants
Inhalants cause dizziness and bloody nose and an example of a inhalant is glue