What are the main b1 selective beta blockers?

They eliminate unwanted bronchoconstriction effect of propanolol given for asthmatic pt, dose 50-100 times less than non-selective one but selectivity is lost in high doses. Therapeutic use in HTA, useful in pt w/impaired pulmonary function/diabetic...Improve lipid profile as well Include Acebutolol, Atenolol, Metoprolol, Esmolol (only IV short half life) Rapidly metabolized by esterases in RBCs.