b1>b2 ionotropic, not chronotropicheart failure, cardiac stress
metaprotenerolAlbuterolsalmeterolterbutaline
Selective b2 agonistsmeta and albuterol, acute asthma.salmeterol, long term therapy asthmaterbutaline.reduces contractions
Ritodrine
B2, reduces contractions
Hemaxethonium
Nicotinic ganglionic blocker, used to prevent reflex bradycardia when using NE.Side effects: orthostatic hypertension, blurred vision, sexual dysfunction.