Rivastigmine (sold under the trade name Exelon) is a parasympathomimetic or cholinergic agent for the treatment of mild to moderate dementia of the Alzheimer's type and dementia due to Parkinson's disease.
Quick Answer. According to the University of Washington, cows sleep for approximately 3.9 hours per day, meaning that they spend about 16.9 percent of the day sleeping. Adult humans sleep for approximately 8 hours per day, which represents 33.3 percent of the day. Human infants sleep approximately 16 hours per day.
Where the horse sleep? Horses sleep in there paddock during the day for only 10-20min naps. altogether horses sleep for 2-4 hours a day. Horses only sleep in short periods because of how heavy they â¦ are and if they lay down for too long they will crush there insides and die.  Horses sleep all throughout the day and night.orses do not need a solid, unbroken period of sleep time. They obtain needed sleep by means of many short periods of rest. Horses require approximately two and a half hours of sleep, on average, in a 24-hour period. Most of this sleep occurs in many short intervals of about 15 minutes each.