Carmoterol (

INN Inns are generally establishments or buildings where travelers can seek lodging, and usually, food and drink. Inns are typically located in the country or along a highway; before the advent of motorized transportation they also provided accommo ...

; development codes TA-2005 and CHF-4226) is a non-catechol experimental ultra-long-acting β adrenoreceptor agonist (ultra-LABA) that was in clinical trials before 2010 when it has been withdrawn from further development based on evidence that the compound does not possess a competitive profile. Preliminary studies indicated duration of its effect exceeding 24 hours after inhalation of 3 ''μ''g. The pharmacologic profile of this medication included the fact its potency in isolated guinea pig trachea is greater than that of

formoterol Formoterol, also known as eformoterol, is a long-acting β2 agonist (LABA) used as a bronchodilator in the management of asthma and chronic obstructive pulmonary disease (COPD). Formoterol has an extended duration of action (up to 12 h) co ...

and

salmeterol Salmeterol (sold in China as Qitai) is a long-acting β2 adrenergic receptor agonist (LABA) used in the maintenance and prevention of asthma symptoms and maintenance of chronic obstructive pulmonary disease (COPD) symptoms. Symptoms of bronchos ...

. It is over 100 times more selective for bronchial muscle than myocardial tissue.

References

Abandoned drugs Long-acting beta2-adrenergic agonists 2-Quinolones Quinolinols Phenylethanolamines Phenol ethers {{respiratory-system-drug-stub