- History of renal, hepatic, cardiovascular, metabolic, neurologic, hematologic, respiratory, gastrointestinal, cerebrovascular, or other which could interfere with study or require treatment which might interfere (eg calcium urolithiasis or absorptive hypercalcuria, insulin dependent diabetes, cancer within last 10 years (except basal cell carcinoma), active hepatitis, coronary artery disease, stroke, rheumatoid arthritis, human immunodeficiency virus (HIV), or respiratory conditions such as chronic obstructive pulmonary disease (COPD), chronic bronchitis, cystic fibrosis. Others which are well-controlled & stable (eg hypertension, arrhythmia, subjects on stable thyroid hormone replacement for at least 3 months whose thyroid stimulating hormone (TSH) levels are normal) may be allowed.