preliminary data suggest that biopsy specimens from eruptions caused by beta 1-selective adrenoceptor blocking agents ( metoprolol and atenolol ) were characterized by excessive degranulation of the neutrophils in the dermis , while the nonselective beta blockers ( propranolol , nadolol , and sotalol ) were marked by excessive release of proteolytic enzymes from macrophages , which are thought to possess beta 2-adrenergic receptors .
C0034783
adrenoceptor
C0001643
beta 2-adrenergic receptors