This β adrenergic blocking effect is useful in {HEAD ~ the therapeutic treatment} of {TAIL ~ various cardiovascular conditions} such as angina pectoris, arrhythmia etc 
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This β adrenergic blocking effect is useful in { HEAD ~ the therapeutic treatment } of { TAIL ~ various cardiovascular conditions } such as angina pectoris , arrhythmia etc
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH