The Five Most Common Illegally Used Drugs

The possession and distribution of illegal drugs is a common criminal offense in Texas and throughout the United States. The substances for which individuals are arrested for possessing and selling vary from state to state; some drugs are popular throughout the country, and others are largely contained in specific states and regions. Texas has some of the harshest penalties for illegally used drugs in the United States.

The following five substances in Texas are the most common drugs among individuals arrested for drug possession and those admitted to drug treatment centers.


Marijuana is the most common illegally used drugs in the United States. Although it has been approved for medical and recreational use in some states, it remains illegal in Texas. Individuals convicted of marijuana possession may face fines of $2,000 to $50,000 and jail sentences ranging from 180 days to 99 years, depending on the amount of marijuana they are found to possess. Individuals convicted of selling marijuana and producing marijuana concentrate face steeper penalties, including life in prison.


By far, most cocaine-related arrests and rehabilitation admissions are for individuals using crack cocaine, the rock form of the drug that can be smoked. Crack cocaine delivers a short, intense high to users and is considered the most addictive form of cocaine, according to online addiction treatment data. Individuals convicted of possessing or selling cocaine face significant fines and jail time.


Heroin is a powerful opioid synthesized with ingredients from the opium poppy. Most of the heroin found in the United States is cultivated in Afghanistan and Mexico. Individuals convicted of the sale and possession of heroin in Texas face consequences, including fines and jail time, with offenders convicted of selling to minors facing harsher penalties than those convicted of selling heroin to adults.

Other Opioids

Heroin is not the only opioid found on Texas streets. Prescription drugs such as Vicodin, Percocet, Oxycontin, and morphine are all commonly sold, consumed, and abused by Texans. Possessing any of these drugs without a valid prescription and selling them without a pharmacist license is illegal. Individuals convicted of illegally selling and possessing prescription drugs can face significant fines and jail sentences.

Crystal Methamphetamine

Crystal methamphetamine, also known as “ice” or “glass,” is a party drug known for its clear, rock-like substance. It is a synthetic substance used in the United States since the early twentieth century. Individuals convicted of possessing, selling, or manufacturing crystal methamphetamine face penalties such as jail time and fines. As with other drug charges, the amount of crystal methamphetamine an individual is found to possess is a key part of determining his or her sentence.

Collin County Illegally Used Drugs Charge Lawyers

A drug conviction has serious consequences. If you are facing any drug charge in Collin County, you must immediately begin working on your case’s defense with an experienced drug charge attorney. Call Rosenthal Kalabus & Therrian today at (972) 369-0577 to begin working with one of our firm’s knowledgeable drug charge lawyers.

Written by: Rosenthal Kalabus & Therrian Last Updated : September 18, 2023