Most people who are being treated for VDD are either taking a weekly prescription that is D2 50,000iu (some do this more than once a week) and some are taking a daily
D3 (
OTC)
Vitamin D that ranges any where from 1,000iu to up to 10,000iu. I have not heard of an oral med that is taken once a month.
VDD can have a multitude of symptoms including benign cardiac symptoms, anxiety, depression, thyroid issues, muscle pain, bone pain etc.