- Terbutaline
drugbox
IUPAC_name = 5-(1-hydroxy-2-tert-butylamino-ethyl)benzene-1,3-diol
CAS_number = 23031-25-6
ATC_prefix = R03
ATC_suffix = AC03
ATC_supplemental = ATC|R03|CC03
PubChem = 5403
DrugBank = APRD00589
C=12 | H=19 | N=1 | O=3
molecular_weight = 225.284 g/mol
bioavailability =
protein_bound =
metabolism = GI tract (oral), liver; CYP450: unknown
elimination_half-life = urine 90% (60% unchanged), bile/faeces; Half-life: 3-4h
pregnancy_category = B
legal_AU =
legal_CA =
legal_UK = POM
legal_US =
legal_status =
routes_of_administration = SQ, Oral, InhaledTerbutaline (
trade name s "Brethine", "Bricanyl", or "Brethaire") is a β2-adrenergic receptor agonist, used as a fast-actingbronchodilator (often used as a short-term asthma treatment) and as atocolytic to delaypremature labour . The inhaled form of terbutaline starts working within 15 minutes and can last up to 6 hours.Terbutaline as a treatment for premature labour is an off-label use not approved by the FDA. It is a
pregnancy category 'B' medication and is routinely prescribed to stop contractions. Terbutaline is currently on theWorld Anti-Doping Agency 's list of prohibited drugs, except, when administered by inhalation, a Therapeutic Use Exemption (TUE) has been obtained in advance.ide effects
*Maternal -
tachycardia ,nervousness ,tremors ,headache ,hyperglycemia ,hypokalemia , and rarely,pulmonary edema .Cite book | author=Shen, Howard | title=Illustrated Pharmacology Memory Cards: PharMnemonics | date=2008 | publisher=Minireview | isbn=1-59541-101-1 | pages=7]
*Fetal -tachycardia andhypoglycemia Fact|date=August 2008.Terbutaline is preferred over
Ritodrine because it has minimal effects on blood pressure.Fact|date=August 2008.References
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