To compare the efficacy of Vitamin D3 B.O.N. Intramuscular Injection within 12 weeks with that of placebo in adults with Vitamin D Deficiency.

Inclusion Criteria:

• Subjects with vitamin D deficiency

Exclusion Criteria:

• Subjects who experienced a hypersensitivity to the cholecalciferol
• Subjects with renal impairment
• Subjects with Hypercalcemia
• Subjects with Hypercalciuria
• Subjects with clinically doubted calcium stone
• Subjects diagnosed with sarcoidosis
• Subjected diagnosed with pseudo-hypoparathyroidism
• Subjected with malignancy
• Subjects with clinically significant cardiovascular or lung impairment Judged by the investigator
• Subjects with the below laboratory abnormality (Platelet, WBC, Absolute neutrophil count, Albumin, AST or ALT)
• Subjects who are to take vitamin D supplements during the study period