Real in-store prices from 600+ Costco locations. Download on the App Store to track prices, scan shelf tags, and get alerts.
$6.00 off
Sale starts Sep 21 · Warehouse Savings Book
Starts in 5 days
Prices and limits may vary by warehouse.
View all upcoming salesMucinex Fast-Max Cold & Flu 12-Hour Multi-Symptom Relief, 50 Count
In-store pricing snapshot
Lowest verified warehouse price · 295 Costco warehouses reporting.
* Prices shown are for Costco members only.
Mucinex Fast-Max Cold & Flu 12-Hour Multi-Symptom Relief caplets provide comprehensive, around-the-clock relief from the most common cold and flu symptoms. Each caplet combines four active ingredients — Acetaminophen (325 mg) for fever reduction and pain relief, Dextromethorphan HBr (10 mg) to suppress cough, Guaifenesin (200 mg) to loosen and thin mucus and chest congestion, and Phenylephrine HCl (5 mg) to relieve nasal and sinus congestion. This Costco value pack contains 50 caplets, providing a generous supply for the household.
The formula temporarily relieves nasal congestion, sinus congestion, chest congestion, cough, sore throat, body pain, headache, and fever. Suitable for adults and children 12 years of age and older, the recommended dose is 2 caplets every 4 hours, not exceeding 12 caplets in any 24-hour period. The extended-release bi-layer design delivers fast-acting relief. HSA/FSA eligible.