How much does Mucinex cost without insurance?

Mucinex (Guaifenesin) 600 mg costs around $7.99 cash for the generic and $19.99 for the brand. Live prices on this page are verified within the last 72 hours.

What pharmacy has the cheapest Mucinex?

Cost Plus Drugs and Costco typically have the lowest cash price for generic Guaifenesin. CVS and Walgreens are the most expensive. Exact rankings update live above.

How does a Mucinex discount card work?

Show the discount card barcode to your pharmacist at checkout. They run it instead of insurance, and the cash price is reduced. No signup, no email, no insurance card needed.

Is the Mucinex discount card really free?

Yes — the GoodRx card is free forever. Tuesdays makes no money on coupons. We also compare the card price to direct cash prices at Cost Plus and Costco, which are sometimes lower.

Cough/Cold

Mucinex

Name: Mucinex 600 mg (Guaifenesin)
Brand: Mucinex
SKU: mucinex

Guaifenesin · 600 mg · tablet · qty 40

Chest congestion, mucus thinner.

Medically reviewed by Sara Marin, PharmD · Last verified 2026-05-18

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Price summary

Form	Class	Brand avg	Generic avg	Savings
tablet 600 mg	OTC	$19.99	$7.99	60%

FAQ

Is generic Guaifenesin the same as Mucinex?

Yes. The FDA requires generics to contain the same active ingredient at the same strength as the brand. Inactive ingredients (binders, dyes) may differ.

How much can I save by choosing the generic?

On average $12.00 per fill (60% off the brand price). Savings vary by pharmacy — see live prices above.

Do I need insurance to get this price?

No. The prices shown on Tuesdays are cash prices. Often these beat insurance copays for generics.

How often is this price updated?

At minimum every 72 hours. Many sources refresh every few hours.

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Information for general comparison only. Not medical advice. Confirm with your pharmacist.