Taking 25-Hydroxy vitamin D3 weekly was patented in 2010
(WO2010011906) World Patent Office
Yet another vitamin D patent by DELUCA, Hector
single dose is in the range of 10-100 ?g/kg body weight
400 – 4000 IU/kg of body weight
Which, for an 85 kg person would be 3400 – 34,000 IU weekly
Which would average out to 485 to 4,850 IU daily
See also Vitamin D Life
How elderly can remember to take vitamin D weekly vitamin D in blister pack