Mechanism
How Trelegy works
Combines inhaled corticosteroid anti-inflammatory activity (fluticasone), long-acting muscarinic antagonism (umeclidinium), and long-acting beta agonist bronchodilation (vilanterol) in a single inhaler.
← Respiratory Pharmacology
COMBONBRC High Yield5/5 Importance
Trelegy Respiratory Pharmacology Guide
Class, mechanism, indications, adverse effects, kinetics, exam traps, and NBRC-style study pearls.
Trelegy contains fluticasone (ICS), umeclidinium (LAMA), and vilanterol (LABA). It provides airway inflammation control, muscarinic blockade, and long-acting bronchodilation in a single inhaler. Students should recognize Trelegy as triple therapy and identify all three component classes.
Clinical Pearl
What to remember
When LABA/LAMA therapy is not enough, triple therapy may be the next escalation step.
Kinetics
Onset, peak, and duration
1
Onset
Maintenance therapy
2
Peak
Several days to weeks
3
Duration
Approximately 24 hours
Quick facts
- Subclass
- ICS/LAMA/LABA
- NBRC importance
- 5/5
- Difficulty
- 4/5
- Brands
- Trelegy Ellipta
Common indications
- COPD maintenance therapy
- COPD with frequent exacerbations
- Selected severe asthma patients requiring triple therapy
Adverse effects
- Oral thrush
- Dysphonia
- Dry mouth
- Urinary retention
- Palpitations
- Tachycardia
- Headache
Contraindications
- Hypersensitivity to formulation components
Cautions and safety issues
- Not for acute bronchospasm
- Not a rescue inhaler
- Monitor for oral candidiasis
- Use caution with glaucoma and urinary retention
NBRC-style question
NBRC-style pharmacology review
A patient scenario involves copd patient with frequent exacerbations despite dual therapy. Which medication concept should the respiratory therapy student recognize?
High-yield answer
Trelegy = Triple Therapy
Interactive practice
Practice in PharmaGenius
Master this medication through adaptive review of class, mechanism, indications, adverse effects, exam traps, and clinical scenarios. Missed concepts can later be surfaced for targeted remediation.
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Common Exam Traps
These are the answer choices, mechanisms, or medication classes most commonly confused with this medication on RT school and NBRC-style exams.
- ICS/LABA
- LAMA only
- SABA/SAMA combination
- Rescue inhaler
- ICS only
High-Yield Clinical Scenarios
- COPD patient with frequent exacerbations despite dual therapy
- Medication escalation question
- Triple therapy identification
- Component medication recognition
Related study paths
Continue building pharmacology mastery
Use this medication page as a reference, then reinforce it with interactive practice and related PulmTools study resources.