Terbutaline

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Terbutaline is a β2-adrenergic receptor agonist which acts to block smooth muscle activity.

It is frequently used for human sufferers of asthma.

This drug is acts as a tocolytic (postpones uterine contractions during labor) as well as a fast-acting bronchodilator, causing relaxation of proximal and distal airways, similar in effect to aminophylline and diltiazem, but whose mechanism of action differs[1].

In dogs it is indicated for respiratory distress syndrome.

References

  1. Akhtar S et al (1999) Differential bronchodilatory effects of terbutaline, diltiazem, and aminophylline in canine intraparenchymal airways. Crit Care Med 27(8):1551-1556