Which of the following is a physical consequence of synthetic drug abuse?

Nausea is indeed a recognized physical consequence of synthetic drug abuse. Synthetic drugs, often designed to mimic the effects of natural drugs while altering their chemical structure, can have a variety of adverse effects on the body. Chemical compounds in these substances can disrupt normal bodily functions, leading to feelings of sickness, including nausea. This symptom can result from the body's reaction to the toxins present in synthetic drugs and their impact on the gastrointestinal system.

Severe nausea may also be coupled with other physical symptoms like vomiting, which can contribute to dehydration and further health complications. While mental health issues such as depression and anxiety are significant risks associated with synthetic drug use, they are classified as psychological rather than physical consequences. This distinction clarifies why nausea is the more accurate response when considering the physical effects of synthetic drug abuse.