Shelcal contains Calcium carbonate
and Vitamin D3. Its unlikely that your fathers neck and shoulder problem are related to the tablets. Infact the doctor must have given them as treatment for your dads problems.
Some of the side effects include hypercalcemia
, bloating, vomiting, anorexia, abdominal pain
and kidney stones in people with a history of kidney stones.Generally the medication is well tolerated.