Final answer:
Methadone is an opioid that can cause acute tolerance and withdrawal symptoms when suddenly stopped.
Step-by-step explanation:
Acute opioid tolerance is a phenomenon where the body quickly adapts to the effects of opioids, leading to a decreased response to the drug. When opioids are suddenly stopped, the body may experience withdrawal symptoms. One opioid that can cause acute opioid tolerance with sudden cessation is Methadone. Methadone is a synthetic opioid used to manage withdrawal symptoms in individuals struggling with opioid addiction.