Fosamax is also known by the generic name Alendronate


USES:
Alendronate is used to treat a certain type of bone disease called Paget's disease. This disease weakens and deforms bones. Alendronate works by slowing bone loss, helping to keep your bones strong and less likely to break. It also helps reduce bone pain from this disease. This medication belongs to a class of drugs called bisphosphonates.

Vitamin D is also known by the generic name Cholecalciferol (Vitamin D3)


Vitamin D is also known by the generic name Ergocalciferol (Vitamin D2)


USES:
Vitamin D (ergocalciferol-D2, cholecalciferol-D3, alfacalcidol) is a fat-soluble vitamin that helps your body absorb calcium and phosphorus. Having the right amount of vitamin D, calcium, and phosphorus is important for building and keeping strong bones. Vitamin D is used to treat and prevent bone disorders (such as rickets, osteomalacia). Vitamin D is made by the body when skin is exposed to sunlight. Sunscreen, protective clothing, limited exposure to sunlight, dark skin, and age may prevent getting enough vitamin D from the sun.

Vitamin D with calcium is used to treat or prevent bone loss (osteoporosis). Vitamin D is also used with other medications to treat low levels of calcium or phosphate caused by certain disorders (such as hypoparathyroidism, pseudohypoparathyroidism, familial hypophosphatemia). It may be used in kidney disease to keep calcium levels normal and allow normal bone growth. Vitamin D drops (or other supplements) are given to breast-fed infants because breast milk usually has low levels of vitamin D.