The aim of this study is to adapt the gold standard of research and to explore the comparative bioavailability and clinical efficacy of the two most commonly used forms of Cholecalciferol i.e. ampoules and softgel capsules.

Deficiency of Vitamin D is highly prevalent in all sectors and regions of Pakistan. Its effects encompass multiple pluripotent physiological impacts on human body, including its classical action on bone health and immune modulation. Health care workers are routinely prescribing supplementations to correct the deficiencies. Different forms of Cholecalciferol are available in the market. It ranges from absorba liquids, drops, tablets, softgels to injectable and oral ampoules. Different delivery systems offer different advantages, challenges and efficacies specific to their specific pharmacokinetics. The aim of this study is to adapt the gold standard of research and to explore the comparative bioavailability and clinical efficacy of the two most commonly used forms of Cholecalciferol i.e. ampoules and softgel capsules.

INCLUSION CRITERIA:

1. Adult (20-70 years of age)
2. Vitamin D deficiency (serum 25(OH)D < 20 ng/ml)
3. Permanent employees of Medicine ward of Holy Family Hospital, DHQ, BBH hospitals and RMU for easy follow up throughout the study duration
4. Willingness and availability to show-up in the follow up visit and serum testing throughout the study period as needed

EXCLUSION CRITERIA:

1. Vitamin D sufficiency or moderate deficiency (serum 25(OH)D > 20 ng/ml)
2. Pregnant ladies
3. Participants already taking Vitamin D supplementation, anti-convulsants, barbiturates or steroids
4. Subjects with granulomatous conditions, liver disease, kidney disease, or diabetes

Proforma

double blinded placebo controlled