A more thorough explanation:

Mania a potu is another term for delirium tremens, which is a serious illness caused by drinking too much alcohol for a long time. It is characterized by hallucinations and violent trembling.

John had been drinking heavily for years, and he suddenly developed mania a potu. He started seeing things that weren't there and shaking uncontrollably.

Sarah's father had to be hospitalized because of mania a potu. He was so disoriented and agitated that he couldn't recognize his own family.

The examples illustrate how mania a potu can affect people who have been drinking excessively for a long time. They show how the illness can cause hallucinations and tremors, making it difficult for the person to function normally. These examples also highlight the severity of the illness, as both John and Sarah's father required medical attention.