Polycythemia can result from internal problems with the production of red blood cells. This is termed primary polycythemia. If polycythemia is caused due to another underlying medical problem, it is referred to as secondary polycythemia.
PMS can last 1-2 weeks. Premenstrual syndrome (PMS) is characterized by a number of symptoms related to a womanâs menstrual cycle. They occur a week or two before monthly menstruation begins, and ordinarily, they disappear at that time.
How Long Does Cialis Last? The answer depends on a number of factors and will vary between individuals. However, in most people, Cialis will last for about 36 hours. In previous research studies, the effects of Cialis were measured by comparing people who took Cialis to people who took a sugar pill.