What best describes Substance or Medication Induced Anxiety Disorder?

Substance or Medication Induced Anxiety Disorder is characterized by the emergence of anxiety symptoms that are directly linked to the use of a substance or the effects of medication. Option B accurately describes this condition as it highlights the relationship between the discontinuation of a substance (such as a medication) and the onset of panic symptoms or anxiety. In this context, withdrawal or cessation can trigger anxiety, which is a key element in diagnosing this disorder.

The other options do not accurately define the disorder. The first option refers to anxiety caused by a medical condition, which falls under different diagnostic criteria. The third option mentions anxiety arising from environmental factors, which does not consider the direct influence of substances. Lastly, the fourth option suggests persistent anxiety beyond the influence of the substance, which misrepresents the nature of the disorder since this condition specifically ties the anxiety symptoms to the substance use or withdrawal period rather than allowing for a longer trajectory of anxiety unrelated to the substance effects.