Posted under Drug Testing - General. Tags: amphetamines, anabolic steroids, classifications of drugs, different types of drugs, drug abuse, drug classification, Drug Testing - Hair, drug tests, drugs, hair drug test, methamphetamine drugs, morphine, narcotic drug, opiates, opium derivative, oxycodone, saliva drug testing, steroid, substance abuse, urine drug test, urine drug testing. Comments: None