There remains anxiety about the use of hormone replacement therapy (HR
T) in postmenopausal women with hypertension. We therefore conducted a
prospective open study of sequential changes in BP in 75 women referr
ed to our hypertension clinic who required HRT for amelioration of men
opausal symptoms. There were no significant differences in mean systol
ic or diastolic BPs following the introduction of HRT over a median fo
llow-up time of 14 months (interquartile range 8-32 months), despite a
significant rise in mean body weight for individual patients which wa
s statistically significant at three, nine and 12 months following the
introduction of HRT. No differences in BP were seen in relation to ty
pe of menopause, ethnic origin, history of previous pregnancy-induced
hypertension or the type of HRT preparation used. Our data suggest tha
t HRT is safe in hypertensive women who should not therefore be denied
this therapy if they have menopausal symptoms, although careful super
vision is necessary.