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? In most people, Cialis lasts for about 36 hours. There are a number of factors that can increase or decrease how long Cialis lasts. Some factors that increase the amount of time Cialis stays in the body include severe kidney disease and certain medicines.