The method of treating elevated blood levels of iPTH by increasing or maintaining blood concentrations of both 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D in a patient by administering, as necessary, both Vitamin D repletion and Vitamin D hormone replacement therapies, is disclosed. The blood concentrations of 25-hydroxyvitamin D are increased to and maintained at or above 30 ng/mL, and blood concentrations of 1,25-dihydroxyvitamin D are increased to or maintained within a patient's normal historical physiological range for 1,25-dihydroxyvitamin D without causing substantially increased risk of hypercalcemia, hyperphosphatemia or over suppression of plasma iPTH in the patient. The blood levels of 25-hydroxyvitamin D are maintained at or above 30 ng/mL between doses of Vitamin D repletion therapies, and the blood levels of 1,25-dihydroxyvitamin D are maintained in the patient's normal historical physiological range between doses of Vitamin D hormone replacement therapies. In one aspect, the disclosure includes methods wherein the blood concentration of 25-hydroxyvitamin D during treatment comprises predominantly 25-hydroxyvitamin D.sub.3, and/or wherein the method includes administering predominantly or solely 25-hydroxyvitamin D.sub.3 for 25-hydroxyvitamin D repletion and/or maintenance.

The present disclosure provides compositions and formulations comprising botanicals and natural compounds for the promotion of healthy brain aging in adults, especially adult women, and for prevention of age associated neurodegenerative changes resulting in cognitive, memory and executive dysfunction including modulation of the age related predisposition to mild cognitive impairment, Alzheimer's disease, hormonal and other dementia related conditions. The present disclosure also provides methods of using the compositions and formulations in treating and preventing neurodegenerative changes resulting in cognitive, memory and executive dysfunction.

The present disclosure provides compositions and formulations comprising botanicals and natural compounds for the promotion of healthy brain aging in adults, especially adult women, and for prevention of age associated neurodegenerative changes resulting in cognitive, memory and executive dysfunction including modulation of the age related predisposition to mild cognitive impairment, Alzheimer's disease, hormonal and other dementia related conditions. The present disclosure also provides methods of using the compositions and formulations in treating and preventing neurodegenerative changes resulting in cognitive, memory and executive dysfunction.

The present disclosure provides compositions and formulations comprising botanicals and natural compounds for the promotion of healthy brain aging in adults, especially adult women, and for prevention of age associated neurodegenerative changes resulting in cognitive, memory and executive dysfunction including modulation of the age related predisposition to mild cognitive impairment, Alzheimer's disease, hormonal and other dementia related conditions. The present disclosure also provides methods of using the compositions and formulations in treating and preventing neurodegenerative changes resulting in cognitive, memory and executive dysfunction.

The invention discloses an improved process for production of vitamin D3 from 7-dehydrocholesterol (7-DHC) and to a simple process for recovery unreacted 7-DHC for further reuse. The invention further describes a process for isolation and purification of Vitamin D3.

Pediatric and modified release dosage forms of vitamin D compounds, and methods of making and using the same, are disclosed.

Pediatric and modified release dosage forms of vitamin D compounds, and methods of making and using the same, are disclosed.

The present invention relates to a new delivery system for fat-soluble vitamins.

The present invention relates to a new delivery system for fat-soluble vitamins.

Methods and compositions for controlling hyperparathyroidism are disclosed.