Possible side effects of Caltrate 600+D calcium chewables include constipation, nausea, weakness and drowsiness. Some people may experience headaches, irregular heartbeat, dry mouth or a metallic taste in the mouth. Other possible side effects include pain in the bones or muscles, states Drugs.com.
Signs of excessive calcium in the body include vomiting, loss of appetite, abdominal pain, and increased urination or thirst. Other signs include weakness or pain in the muscles, joint pain, restlessness and confusion. Signs of an allergic reaction to Caltrate 600+D calcium chewables include difficulty breathing, hives, and swelling of the tongue, face, throat or lips, according to Drugs.com.
Caltrate 600+D calcium chewables may interact with other prescription or non-prescription medicines, supplements, vitamins and other herbal products. A doctor or pharmacist should be consulted before starting or stopping a medication. Antacids should not be taken within two hours of taking calcium and vitamin D combination supplements, states Drugs.com.
People who have had or currently have kidney disease or kidney stones should speak to a health care professional before taking Caltrate 600+D calcium chewables. People with cancer, heart disease, circulation problems or a parathyroid gland disorder should not take calcium and vitamin D combination supplements without speaking to a physician first. People with high levels of calcium in their blood should avoid calcium and vitamin D combinations unless a doctor says otherwise, notes Drugs.com.