The emergence of tardive dyskinesia is often linked to long-term use of neuroleptic medications, particularly those designed for managing psychiatric or gastrointestinal disorders. While exposure duration and cumulative dosage can influence risk, not all individuals develop symptoms, indicating that additional factors may also play a role. Genetic predisposition, age, underlying medical or neurological conditions, and overall medication regimen are among the variables considered relevant by clinical researchers.

A careful timeline assessment helps determine whether the timing and nature of involuntary movements align with what is typically seen in tardive dyskinesia. In most reported cases, symptoms appear after several months or years of continuous use rather than immediately, highlighting the importance of longitudinal observation. This delayed onset contrasts with other drug-induced movement disorders, which may manifest during initial exposure.
It is also noted that certain populations, including older adults, may exhibit increased sensitivity and a higher observed rate of involuntary movement development. Experts often point to age-related physiological factors and the presence of additional health conditions as possible contributors to this pattern.
Environmental, lifestyle, and other pharmacological influences can further shape the likelihood and presentation of tardive dyskinesia. Clinical studies have suggested that concurrent use of multiple medications or abrupt cessation of a long-standing drug regimen can sometimes modulate the onset and intensity of observed symptoms.