Terbutaline: Difference between revisions
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Latest revision as of 21:55, 20 March 2026
General
- Type: Beta 2 agonist
- Dosage Forms: 1mg/mL injection
Adult Dosing
Preterm labor
- 0.25mg sq q20-30 min, up to 4 doses PRN contractions
Asthma/Bronchoconstriction
- 0.25mg sq q20 min, up to 3 doses
Pediatric Dosing
Asthma/Bronchoconstriction
- 0.005-0.01mg/kg to max 0.4mg SQ q15-20 min, up to 3 doses; may repeat in 2-6 hours
Special Populations
- Pregnancy Rating: Category C
- Lactation: Not recommended
- Renal Dosing: n/a
- Hepatic Dosing: n/a
Contraindications
- Allergy to class/drug
Adverse Reactions
Serious
- Black box warning against prolonged use for tocolysis (>48-72 hrs)
- Cardiac arrhythmia
Common
- Agitation, tremor, hyperglycemia, hypokalemia
Pharmacology
- Onset: 6-15 minutes
- Half-life: 11-16 hours
- Metabolism: Hepatic
- Excretion: Urine
- Mechanism of Action: Beta 2 agonist, smooth muscle relaxant
Indications by Condition
The following table is automatically generated from disease/condition pages across WikEM.
| Indication | Dose | Context | Route | Population |
|---|---|---|---|---|
| Acute asthma exacerbation | 0.25 mg SC/IM q20min x3 | Beta-2 agonist (longer-acting) | SC/IM | Adult |
| Preterm labor | 0.25mg SC q20-30min up to 4 doses PRN | Tocolytic | SC | Adult |
| Priapism | 0.25-0.5 mg SQ or 5-10 mg PO | Beta-agonist (adjunct) | SQ/PO | Adult |
See Also
References
Lexicomp