TY - CHAP M1 - Book, Section TI - Menopausal, Perimenopausal, and Postmenopausal Hormone Therapy A1 - Wells, Barbara G. A1 - DiPiro, Joseph T. A1 - Schwinghammer, Terry L. A1 - DiPiro, Cecily V. PY - 2017 T2 - Pharmacotherapy Quick Guide AB - Perimenopause begins with the onset of menstrual irregularity and ends 12 months after the last menstrual period which marks the beginning of menopause. Menopause is the permanent cessation of menses caused by the loss of ovarian follicular activity. Women spend about 40% of their lives in postmenopause. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accesspharmacy.mhmedical.com/content.aspx?aid=1144734719 ER -