... but by only 17% and 16% of those in the20 and 40 mg PTH groups, respectively ( P = 0.007). Nausea and headache werethe most common side effects, and these occurred infrequently and in a dose-dependent ... 0.001) and BMD at fem-oral neck and trochanter increased by 1% and 3%, respectively, comparedwith placebo.The Vertebral Efficacy With Risedronate Therapy study had two arms: NorthAmerican and ... 547Osteoporosis in elderly: prevention and treatmentManish Srivastava, MDa, Chad Deal, MDb,*aSection of Geriatric Medicine, A91 Cleveland Clinic Foundation, 9500 Euclid Avenue,Cleveland, OH 44195,...