| Exclusion Criteria: | 1) Hypocalcemia of less than 8.4 (corrected to account for the albumin level, [see Appendix E for formula])
2) Hypersensitivity to risedronate or other bisphosphonates
3) Inability to sit or stand upright for at least 30 minutes
4) Bone density T-score of -2.5 S.D or less.
5) Renal insufficiency (calculated creatinine clearance <30cc/min,[see Appendix F for formula])
6) Patients with a 25-hydroxyvitamin D concentration of less than 20 ng/ml and evidence of osteomalacia (low ionized calcium and high intact PTH).
7) Concomitant use of bisphosphonates, calcitonin, anabolic steroids, or fluoride.
8) Corrected calcium above 10.2, due to a cause not related to leukemia/lymphoma (i.e. hyperparathyroidism, multiple myeloma). |