There is no expiration date for cashier's checks. If a cashier's check isn't cashed in a timely manner, considered six months by most banks, it can be considered void or invalid. Keep Learning.
How often might 50000 IU vitamin D be taken - results of clinical trials. There have been many extremely successful vitamin D intervention trials. The trials are listed in the following table are sorted by number of days between doses of 50,000 IU. It appears that the higher the dose of vitamin D the more diseases which are prevented or treated.
For adults, the recommended daily value of vitamin D is 600 International Units (IU) or 15 micrograms (mcg). It is likely that a doctor will recommend between 400 and 1,000 IU per day to supplement your diet for a short period of time.