Antacid 1-2 cap of 835-mg cap qid to 6 times daily or 1,000 mg tab qid to 6 times daily.
Hypocalcemia 1-2 cap of 835-mg cap bid or 1,000 mg tab bid.
Chronic renal failure patients At least 1,000 mg elemental Ca daily (1-2 cap of 835-mg cap tid to qid or 1,000 mg tab tid to qid).