Xamoterol
Xamoterol, sold under the brand names Corwin, Carwin, Corwil, and Xamtol among others, is a cardiac stimulant which is used in the treatment of heart failure. It acts as a selective partial agonist of the β1-adrenergic receptor with around 50% intrinsic sympathomimetic activity . The drug has no significant β2-adrenergic receptor agonistic activity. Xamoterol provides cardiac stimulation at rest but acts as a blocker during exercise. It is taken by mouth.
Xamoterol is not available in the United States. It is marketed in the United Kingdom, Austria, Belgium, and Luxembourg.
Xamoterol is a hydrophilic compound with a predicted log P of -0.31 to -1.11. Due to its hydrophilicity, xamoterol does not cross the blood–brain barrier and has no central nervous system effects. Hence, it is a selective drug">binding selectivity">selective drug.