OverviewRegular strength Mucinex®:
- Relieves chest congestion
- Thins & loosens mucus
- Works for 12 hours
Powerful Expectorant Breaks Up Mucus For Up To 12 Hours. When you’re sick, mucus can be a master of mayhem. But quick, long lasting chest congestion relief is just a dose away with Mucinex® extended-release bi-layer tablets that start to work fast and last for 12 hours.