Shawn Kilgarlin: What are the Most Commonly Abused Drugs in the
US? Shawn Kilgarlin suggests drug abuse is a pressing issue in the United States, with severe consequences for individuals, families, and society as a whole. Understanding the most commonly abused drugs in the US is essential for addressing this public health crisis. This article will explore some frequently misused substances and their impact on society. Alcohol: While not typically classified as a drug, alcohol is one of the most commonly abused substances in the US. Excessive alcohol consumption can lead to addiction, liver damage, impaired judgement, and a host of health problems. Alcohol abuse is a significant contributor to accidents and violence.