--Calcium: Constipation, flatulence, nausea, abdominal pain, diarrhea, hypercalcemia. Calcitriol: Hypercalcemia, nausea, vomiting, anorexia, headache, constipation, abdominal pain, muscle weakness. Zinc: Nausea, vomiting, diarrhea, metallic taste, kidney and stomach damage, dizziness. Ibandronic Acid: Hypocalcemia, hypophosphatemia, abdominal pain, nausea, dyspepsia, diarrhea, constipation, flatulence, headache, dizziness, musculoskeletal pain, myalgia.