Dosage and Administration of Symbicort (Budesonide-Formoterol) 160-4.5 mcg/act
For patients with asthma, Symbicort (budesonide-formoterol) 160-4.5 mcg/act should be administered as two inhalations twice daily, providing a total daily dose of 640 mcg budesonide and 18 mcg formoterol. 1
Dosing Recommendations for Different Age Groups
For adults and adolescents 12 years and older with persistent asthma:
For children under 12 years:
- Not approved for use in this age group 1
Administration Instructions
- Patient should be instructed to:
Quick-Relief Usage
- In Steps 3 and 4 of asthma treatment, Symbicort can be used as both maintenance and reliever therapy 1
- For symptom relief: 1-2 puffs as needed 1
- Maximum total daily maintenance and rescue dose: 12 puffs (54 mcg formoterol) 1
- Caution: Increasing use of Symbicort or using it more than 2 days per week for symptom relief generally indicates inadequate control and may require a step up in treatment 1
Monitoring and Follow-up
- Assess asthma control after 2-6 weeks of initiating therapy 1
- Step down if asthma is well controlled for at least 3 consecutive months 1
- Step up if needed based on symptom control and exacerbation history 1
Clinical Efficacy
- Symbicort demonstrates rapid onset of effect (within 1 minute of administration) due to the properties of formoterol 4
- Provides better asthma control compared to equivalent or higher doses of budesonide alone 2
- Reduces severe exacerbations by 24% compared to placebo and 23% compared to formoterol alone 5
Potential Adverse Effects
Common side effects include:
Using a spacer or valved holding chamber with proper mouth rinsing after inhalation can decrease local side effects 1
Important Considerations
- Symbicort should not be used for acute symptom relief in acute asthma attacks 1
- Patients should be advised not to stop therapy abruptly 2
- Consultation with an asthma specialist is recommended if Step 4 or higher treatment is required 1
- Patients should be monitored for adrenal suppression with long-term use 1