Final answer:
Ingesting doses above 200 mg can have varying effects depending on the substance, including sleepiness, impaired motor function, and potential fatal outcomes.
Step-by-step explanation:
When doses above 200 mg are ingested, the effects can vary depending on the substance. For prescription or over-the-counter medicines, high doses can lead to sleepiness, motor disturbance, memory loss, decreased respiratory function, and even death. Overdoses of illegal drugs can have similar effects, including impaired motor function, respiratory depression, and potential fatal outcomes. Additionally, high doses of certain substances, such as radiation or toxins like arsenic, can cause severe health issues, ranging from long-term health problems like cancer to immediate fatal outcomes.