The drug is selective in that receptors in the lungs take on the catecholamine but receptors in the heart do not. A positive side effect it that it burns fat from the body. Eight men without asthma were given the medication for a week. Their energy metabolism increased by 10 per cent. Fat was burned off by 25 per cent. Protein only fell by 15 per cent. This means people can do more with leaner bodies.
We may be entering a new age where obese people no longer have to suffer. They can have healthy bodies in the normal weight range. Tests on those with asthma will set the stage for this. Subjects will be closely monitored to determine long term effects. Hopefully they will all be beneficial.