to investigate whether the lower the blood pressure ( bp ) the better the prognosis for the patient with moderate-to-severe hypertension , an assessment was made of 902 patients who received the beta 1-selective beta-blocker atenolol ( median dose 100 mg a day ) , either alone or with other antihypertensive agents , for up to 10 years ( mean 6.1 ) .
C0020538
hypertension
C0004147
atenolol