Terbutaline is a selective beta-2 adrenergic agonist used as a bronchodilator and tocolytic. Terbutaline is used as a fast-acting bronchodilator (often used as a short-term asthma treatment) and as a tocolytic[4] to delay premature labor. The inhaled form of terbutaline starts working within 15 minutes and can last up to 6 hours.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.