“These results suggest that pindolol blocked both beta 1 and beta 2 receptors, and therefore, this resulted in exaggerated alpha effects of epinephrine , a remarkable systemic vasoconstriction, and pulmonary congestion.”
“We found that: (1) …; (2) in SHR, epinephrine … pindolol induced remarkable hemodynamic changes (in particular, increase in diastolic blood pressure), which were prevented by phentolamine pretreatment, whereas epinephrine with … combination with pindolol caused pulmonary congestion or edema in SHR; this was confirmed by both quantitative analysis and histological investigations.”