There are different drug screening products for detection and recognition drug abuse by substances of different types of drugs including: 

Amphetamine/Methamphetamine 
These stimulants were developed to take care of different therapeutic circumstances. On the other hand, the illegal versions are manufacturing in underground facilities with mixture of dangerous and unpredictable reagents. Both drugs can be smoked, inhaled, or injected by the drugs abuser. 

Club Drugs 
This term refers to: Ecstasy (MDMA), GHB, Rohypnol (Ruffies), Clarity, and Ketamine (Special K).All affect the human central nervous system and perform as stimulant and hallucinogen. 

Cocaine (Powder) 
Cocaine is a very powerful drug of abuse founded in nature. Cocaine is produced from Coca plant leaves. Usually cocaine is inhaled into the nose. To be smoked, Cocaine must be distorted with the chemical method identified as “freebasing”. The reaction engages blend the cocaine with other ingredients over a heat source. This can be (and often is) deadly for the drugs abuser. 

Crack Cocaine 
As we said before, cocaine powder cannot be smoked unless it was freebasing – thus reaction provides crack cocaine. Crack is smoke able and provides an powerful, instantaneous high. Crack cocaine can be instantly addictive and very dangerous because doses are smaller and cheaper than cocaine.. 

Depressants 
Depressants can be synthetic (like Barbiturates) or occur naturally in plants. Depressants can also be referred to as Benzodiazepines. Trade names include Valium, Librium, Xanax, Ativan, Klonopin, Tranxene, and Dalmane. According to these substances of abuse category name, depressants interrelate to depress the central nervous system actions. 

Hashish 
Hashish ("Hash") is created from the Cannabis plant (Marijuana). Hashish is the resinous material taken from the ends of female plants, which contains the highest concentration of THC. Most commonly used by smoking (pipe, bong) or ingesting (eating foods enclosed hash). It is very popular in a Middle East and some European countries drug.
 
Heroin 
 Very dangerous and deadly drug Heroin is injected, inhaled, or smoked by the abuser. Heroin is derived from morphine.

LSD 
LSD is a synthetic psychotropic, or mind-altering, drug. Not so common at this time.

Marijuana 
Marijuana is the most popular chemical substance chosen for regular use. Marijuana comes from the Hemp plant and its content of THC found in the leaves and flowering shoots of the plant. Most commonly used by smoking (joint, pipe, bong) or ingestion (eating foods containing marijuana, example-brownies). 

 Narcotics 
Though commonly used to refer to all drugs - narcotics are drugs that are derived from opium. Commonly encountered narcotics include: Codeine, Heroin, Darvon, Dilaudid, Demerol, Methadone, Morphine, Opium, and Percodan.

Opium 
Opium is harvest from unripe seed pods of the Poppy plant. Opium can either be injected in its raw form (gum-like) or smoked. It is growing in the Middle East area, mostly in Afghanistan.

PCP (Angel Dust) 
Phencyclidine, commonly named as PCP or Angel Dust, is considered to be the most unpredictable drug on the street because of its effect of the user. PCP can be found in liquid (most toxic), gum, or powdered form. 

Prescription Drugs 
Prescription drug abuse is a modern-day plague with estimates of up to six million Americans have or currently abuse prescription medications. Many prescription drug addicts legitimize their use because of "doctor's orders".