A 23-year-old woman in rural California is brought to the emergency department after being found unconscious beside a bottle of fluid. Physical examination shows increased salivation, lacrimation, and diaphoresis. The mechanism of action of the best initial treatment for this patient is also effective in treating which of the following?
Acute dystonia
Diabetic neurogenic bladder
Essential tremor
Overflow incontinence due to benign prostatic hyperplasia
Stress incontinence