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Adult antitussives-Dextromethorphan

Delsym: 
41%
Mucinex DM: 
39%
Robitussin Lingering Cold Long-Acting Cough: 
7%
DayQuil Cough: 
5%
Vicks Nature Fusion Cough: 
2%
Vicks Formula 44 Custom Care Dry Cough Suppressant: 
1%
Other: 
5%