HELLO, CHOLECALSCEFEROL SACHET ONE PER WEEK FOR EIGHT WEEK, FOLLOWED BY ONE SACHET  PER ONE MONTH FOR SIX MONTHS. THIS IS VIT D3. TABLET BIO D3ONE PER NIGHT FOR LONG PERIOD. FOR VITAMIN B12 INJECTION, FOLLOWED BY VITCOFOL ONE AMPLE IM AST( AFTER SENSITIVITY TEST) FOR FOUR WEEKS, FOLLOWED BY BI MONTHLY, THAN INJECTION ONE PER MONTH FOR FOUR MONTHS. THIS IS THE FULL COURSE OF VIT B12. REMEMBER AST IS VERY NECESSARY. O.K, BYE.