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Decreases in serum calcium and phosphorus following substantial overdose may be expected in some patients. Signs and symptoms of hypocalcemia may also occur in some of these patients. While milk or antacids containing calcium may be given to bind risedronate sodium immediate- release and reduce absorption of the drug, the impact of this intervention for Atelvia delayed-release tablets has not been evaluated.
In cases of substantial overdose, gastric lavage may be considered to remove unabsorbed drug. Standard procedures that are effective for treating hypocalcemia, including the administration of calcium intravenously, would be expected to restore physiologic amounts of ionized calcium and to relieve signs and symptoms of hypocalcemia.
Lethality after single oral doses of risedronate was seen in female rats at 903 mg/kg and male rats at 1703 mg/kg. The minimum lethal dose in mice and rabbits was 4000 mg/kg and 1000 mg/kg, respectively. These values represent 320 to 620 times the human Paget's disease dose of 30 mg/day based on surface area (mg/m²).
Atelvia is contraindicated in patients with the following conditions:
- Abnormalities of the esophagus which delay esophageal emptying such as stricture or achalasia [see WARNINGS AND PRECAUTIONS]
- Inability to stand or sit upright for at least 30 minutes [see DOSAGE AND ADMINISTRATION, WARNINGS AND PRECAUTIONS]
- Hypocalcemia [see WARNINGS AND PRECAUTIONS]
- Known hypersensitivity to any component of this product. Angioedema, generalized rash and bullous skin reactions, some severe, have been reported [see ADVERSE REACTIONS]
Last reviewed on RxList: 5/3/2013
This monograph has been modified to include the generic and brand name in many instances.
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