Mucinex 12-Hour (Guaifenesin 600mg ER)
Mucinex·$23.99
✓Generic Worth ItSave 46%
70% confidence241 votes
✓Verified Feb 2026
Generic Alternative
CVS Health Mucus Relief (Guaifenesin 600mg ER)
CVS Health
CVS
$12.99
169
Same Quality
48
Close Enough
24
Not Worth It
Quick Facts
✓Ingredients ComparedConfirmed
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70%
Same Quality
20%
Close Enough
10%
Not Worth It
Evidence (1)
Ingredients✓ Confirmedby adminApr 6, 2026
CVS Health Mucus Relief contains guaifenesin 600mg ER, identical to Mucinex 12-Hour. Guaifenesin's extended-release patent expired. FDA-approved generics use the same polymer matrix for 12-hour release. Pharmacists consistently recommend generic guaifenesin.
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