- Conditions
- Chronic Bronchitis
- Interventions
- Guafenesin tablets
- Drug
- Lead sponsor
- American Health Research
- Other
- Eligibility
- 40 Years to 90 Years
- Enrollment
- 82 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2024
- U.S. locations
- 2
- States / cities
- Charlotte, North Carolina • Rock Hill, South Carolina
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