Mucus Relief

Manufacturer: COSTCO WHOLESALE CORPORATION | LNK International, Inc.
Effective date: 2025-11-15
Label type: HUMAN OTC DRUG LABEL
Version: 16
Source: monthly-update
Hydrated at: 2026-06-03 17:40:02

Label at a glance#

ProductMucus Relief

Active ingredientGUAIFENESIN

Label structure9 sections

Indications and uses

helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive

Dosage and administration

take with a full glass of water adults and children 12 years and over: 1 tablet every 4 hours. Do not take more than 6 tablets in 24 hours. children under 12 years: do not use

Storage and handling

store at 25ºC (77ºF); excursions permitted between 15º-30ºC (59º-86ºF) see end flap for expiration date and lot number

Contacts and useful links#

PhoneLabel contact1-800-426-9391

PhoneLabel contact1-800-774-2678

Websitewww.costco.com

www.costco.com

Label contents#

Full prescribing information#

Active ingredient (in each immediate-release tablet)

OTC - ACTIVE INGREDIENT SECTION

Guaifenesin 400 mg

Purpose

OTC - PURPOSE SECTION

Expectorant

Uses

INDICATIONS & USAGE SECTION

helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive

Warnings

WARNINGS SECTION

Ask a doctor before use if you have

OTC - ASK DOCTOR SECTION

cough accompanied by too much phlegm (mucus)
persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema

Stop use and ask a doctor if

OTC - STOP USE SECTION

cough persists more than 7 days, tends to recur, or is accompanied by a fever, rash, or persistent headache. These could be signs of a serious condition.

If pregnant or breast-feeding,

OTC - PREGNANCY OR BREAST FEEDING SECTION

ask a health professional before use.

Keep out of reach of children.

OTC - KEEP OUT OF REACH OF CHILDREN SECTION

In case of overdose, get medical help or contact a Poison Control Center right away.

Directions

DOSAGE & ADMINISTRATION SECTION

take with a full glass of water
adults and children 12 years and over: 1 tablet every 4 hours. Do not take more than 6 tablets in 24 hours.
children under 12 years: do not use

Other information

STORAGE AND HANDLING SECTION

store at 25ºC (77ºF); excursions permitted between 15º-30ºC (59º-86ºF)
see end flap for expiration date and lot number

Inactive ingredients

INACTIVE INGREDIENT SECTION

FD&C blue #1 aluminum lake, hypromellose, magnesium stearate, maltodextrin, microcrystalline cellulose, polyethylene glycol, povidone, silicon dioxide, sodium starch glycolate, stearic acid

Questions or comments?

SPL UNCLASSIFIED SECTION

1-800-426-9391

Principal Display Panel

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

KIRKLAND
Signature

IMMEDIATE-RELEASE
EXPECTORANT
TABLETS

NDC 63981-532-06
ITM. / ART. 363881

MUCUS RELIEF
CHEST
Guaifenesin, 400 mg
Expectorant

Actual Size

✔Relieves Chest Congestion

✔Thins and Loosens Mucus

✔Makes Coughs More Productive

2 x 200
Immediate-Release
Tablets

TAMPER EVIDENT: DO NOT USE IF IMPRINTED
SAFETY SEAL UNDER CAP IS BROKEN OR MISSING

50844 REV0118H53206
Manufactured by: LNK INTERNATIONAL, INC.
60 Arkay Drive, Hauppauge, NY 11788 USA

For: Costco Wholesale Corporation
P.O. Box 34535, Seattle, WA 98124-1535 USA
1-800-774-2678
www.costco.com

DailyMed Product Concepts#

Product concept, Relation, Version table
Product concept	Relation	Version	Effective
4fe95224-f543-4dbb-9445-8cca122b48c8	Product name	1	20150609
e8718272-64cb-4436-969b-176c3067c8f4	Product name	1	20150609
106ff02a-57e1-4c4c-a307-fd582ff4e311	Product name	1	20150212

DailyMed Billing Units#

Package NDC, Billing unit, Product NDC table
Package NDC	Billing unit	Product NDC	DailyMed indexing SPL	SPL version	Effective
63981-532-06	EA - Each	63981-532	fd4f4b76-3260-4540-acfb-b73dc9a87066	1	2012-07-24

DailyMed Socrata Ingredients#

Ingredient, Type, UNII table
Ingredient	Type	UNII	SPL version
GUAIFENESIN	ACTIVE INGREDIENT	495W7451VQ	4
GUAIFENESIN	ACTIVE MOIETY	495W7451VQ	4
CELLULOSE, MICROCRYSTALLINE	INACTIVE INGREDIENT	OP1R32D61U	4
FD&C BLUE NO. 1	INACTIVE INGREDIENT	H3R47K3TBD	4
HYPROMELLOSES	INACTIVE INGREDIENT	3NXW29V3WO	4
MAGNESIUM STEARATE	INACTIVE INGREDIENT	70097M6I30	4
MALTODEXTRIN	INACTIVE INGREDIENT	7CVR7L4A2D	4
POLYETHYLENE GLYCOLS	INACTIVE INGREDIENT	3WJQ0SDW1A	4
POVIDONES	INACTIVE INGREDIENT	FZ989GH94E	4
SILICON DIOXIDE	INACTIVE INGREDIENT	ETJ7Z6XBU4	4
SODIUM STARCH GLYCOLATE TYPE A POTATO	INACTIVE INGREDIENT	5856J3G2A2	4
STEARIC ACID	INACTIVE INGREDIENT	4ELV7Z65AP	4

Products#

Every source-derived product name is available through these pages.

DailyMed product names page 1 of 1 · 12 matching rows.

Mucus Relief
Guaifenesin
FD&C BLUE NO. 1 ALUMINUM LAKE
HYPROMELLOSE, UNSPECIFIED
MAGNESIUM STEARATE
MALTODEXTRIN
MICROCRYSTALLINE CELLULOSE
POLYETHYLENE GLYCOL, UNSPECIFIED
POVIDONE, UNSPECIFIED
SILICON DIOXIDE
SODIUM STARCH GLYCOLATE TYPE A POTATO
STEARIC ACID

NDC Codes#

Product NDC, Package NDC table
Product NDC	Package NDC
63981-532	63981-532-06, 63981-532-03, 63981-532-36

Ingredients#

Every source-derived ingredient row is available through these pages.

DailyMed ingredient rows page 1 of 1 · 11 matching rows.

Name, UNII, Kind table
Name	UNII	Kind
GUAIFENESIN	495W7451VQ	ACTIB
FD&C BLUE NO. 1 ALUMINUM LAKE	J9EQA3S2JM	IACT
HYPROMELLOSE, UNSPECIFIED	3NXW29V3WO	IACT
MAGNESIUM STEARATE	70097M6I30	IACT
MALTODEXTRIN	7CVR7L4A2D	IACT
MICROCRYSTALLINE CELLULOSE	OP1R32D61U	IACT
POLYETHYLENE GLYCOL, UNSPECIFIED	3WJQ0SDW1A	IACT
POVIDONE, UNSPECIFIED	FZ989GH94E	IACT
SILICON DIOXIDE	ETJ7Z6XBU4	IACT
SODIUM STARCH GLYCOLATE TYPE A POTATO	5856J3G2A2	IACT
STEARIC ACID	4ELV7Z65AP	IACT

Source Document#

Source XML

Inactive ingredient matches#

Inactive Ingredient Database values describe FDA-listed use contexts. The match method and ambiguity count are shown because ingredient names, routes, and dosage forms are not always unique. Browse recovered IID releases and source provenance.

Inactive ingredient links page 1 of 5 · 251 matching rows.

DailyMed ingredient, IID ingredient, UNII table
DailyMed ingredient	IID ingredient	UNII	Dosage form / route	Potency	Maximum daily exposure	Match
MAGNESIUM STEARATE	MAGNESIUM STEARATE	70097M6I30	POWDER / ORAL		25 mg	Exact identifier — unii candidate 39 equally ranked IID candidates
SILICON DIOXIDE	SILICON DIOXIDE	ETJ7Z6XBU4	CAPSULE, COATED, EXTENDED RELEASE / ORAL	NA		Exact identifier — unii candidate 49 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	CREAM / TOPICAL	0.01 %w/w		Exact identifier — unii candidate 37 equally ranked IID candidates
STEARIC ACID	STEARIC ACID	4ELV7Z65AP	TABLET, CHEWABLE / ORAL		180 mg	Exact identifier — unii candidate 26 equally ranked IID candidates
SILICON DIOXIDE	SILICON DIOXIDE	ETJ7Z6XBU4	TABLET, DELAYED RELEASE PARTICLES / ORAL		170 mg	Exact identifier — unii candidate 49 equally ranked IID candidates
POVIDONES	POVIDONE	FZ989GH94E	DROPS / ORAL	NA		Exact identifier — unii candidate 30 equally ranked IID candidates
SILICON DIOXIDE	SILICON DIOXIDE	ETJ7Z6XBU4	CAPSULE / RESPIRATORY (INHALATION)	NA		Exact identifier — unii candidate 49 equally ranked IID candidates
HYPROMELLOSES	HYPROMELLOSE	3NXW29V3WO	SUSPENSION/ DROPS / OPHTHALMIC		3 mg	Exact identifier — unii candidate 27 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	POWDER, FOR SUSPENSION / ORAL	1 mg/5ml		Exact identifier — unii candidate 37 equally ranked IID candidates
SILICON DIOXIDE	SILICON DIOXIDE	ETJ7Z6XBU4	TAMPON / VAGINAL	NA		Exact identifier — unii candidate 49 equally ranked IID candidates
SILICON DIOXIDE	SILICON DIOXIDE	ETJ7Z6XBU4	POWDER, FOR SOLUTION / ORAL		280 mg	Exact identifier — unii candidate 49 equally ranked IID candidates
SILICON DIOXIDE	SILICON DIOXIDE	ETJ7Z6XBU4	GRANULE, FOR SOLUTION / ORAL	1.8 mg/120ml		Exact identifier — unii candidate 49 equally ranked IID candidates
MAGNESIUM STEARATE	MAGNESIUM STEARATE	70097M6I30	TABLET, CHEWABLE / ORAL		127 mg	Exact identifier — unii candidate 39 equally ranked IID candidates
HYPROMELLOSES	HYPROMELLOSE	3NXW29V3WO	LOTION / TOPICAL	0.1 %w/w		Exact identifier — unii candidate 27 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	SYRUP / ORAL	0.05 mg/5ml		Exact identifier — unii candidate 37 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINE	MICROCRYSTALLINE CELLULOSE	OP1R32D61U	TABLET, EXTENDED RELEASE / ORAL		5119 mg	Exact identifier — unii candidate 28 equally ranked IID candidates
MAGNESIUM STEARATE	MAGNESIUM STEARATE	70097M6I30	TABLET, ORALLY DISINTEGRATING, DELAYED RELEASE / ORAL		47 mg	Exact identifier — unii candidate 39 equally ranked IID candidates
MAGNESIUM STEARATE	MAGNESIUM STEARATE	70097M6I30	TABLET / ORAL		980 mg	Exact identifier — unii candidate 39 equally ranked IID candidates
MAGNESIUM STEARATE	MAGNESIUM STEARATE	70097M6I30	TABLET, FILM COATED, EXTENDED RELEASE / ORAL		53 mg	Exact identifier — unii candidate 39 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	CAPSULE, EXTENDED RELEASE / ORAL		1 mg	Exact identifier — unii candidate 37 equally ranked IID candidates
HYPROMELLOSES	HYPROMELLOSE	3NXW29V3WO	TABLET, CHEWABLE / ORAL	11.8 mg		Exact identifier — unii candidate 27 equally ranked IID candidates
POVIDONES	POVIDONE	FZ989GH94E	TABLET, EXTENDED RELEASE / ORAL		101 mg	Exact identifier — unii candidate 30 equally ranked IID candidates
HYPROMELLOSES	HYPROMELLOSE	3NXW29V3WO	INSERT / VAGINAL	54.21 mg		Exact identifier — unii candidate 27 equally ranked IID candidates
MAGNESIUM STEARATE	MAGNESIUM STEARATE	70097M6I30	TABLET, EXTENDED RELEASE / ORAL		173 mg	Exact identifier — unii candidate 39 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINE	MICROCRYSTALLINE CELLULOSE	OP1R32D61U	SUSPENSION / ORAL		1600 mg	Exact identifier — unii candidate 28 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINE	MICROCRYSTALLINE CELLULOSE	OP1R32D61U	TABLET, DELAYED RELEASE PARTICLES / ORAL		580 mg	Exact identifier — unii candidate 28 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	SOLUTION / RECTAL	0.01 %w/v		Exact identifier — unii candidate 37 equally ranked IID candidates
STEARIC ACID	STEARIC ACID	4ELV7Z65AP	TABLET, EXTENDED RELEASE / ORAL		200 mg	Exact identifier — unii candidate 26 equally ranked IID candidates
MALTODEXTRIN	MALTODEXTRIN	7CVR7L4A2D	TABLET, FILM COATED, EXTENDED RELEASE / ORAL	NA		Exact identifier — unii candidate 15 equally ranked IID candidates
POVIDONES	POVIDONE	FZ989GH94E	TABLET, CHEWABLE / ORAL		48 mg	Exact identifier — unii candidate 30 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	TABLET, FILM COATED / ORAL	0.16 mg		Exact identifier — unii candidate 37 equally ranked IID candidates
STEARIC ACID	STEARIC ACID	4ELV7Z65AP	POWDER, FOR SUSPENSION / ORAL	1203 mg/5ml		Exact identifier — unii candidate 26 equally ranked IID candidates
POVIDONES	POVIDONE	FZ989GH94E	TABLET, DELAYED RELEASE / ORAL		53 mg	Exact identifier — unii candidate 30 equally ranked IID candidates
HYPROMELLOSES	HYPROMELLOSE	3NXW29V3WO	GRANULE, FOR SUSPENSION / ORAL	1.7 mg		Exact identifier — unii candidate 27 equally ranked IID candidates
STEARIC ACID	STEARIC ACID	4ELV7Z65AP	AEROSOL, FOAM / VAGINAL	4 %w/w		Exact identifier — unii candidate 26 equally ranked IID candidates
POVIDONES	POVIDONE	FZ989GH94E	SUSPENSION / ORAL	20 mg/5ml		Exact identifier — unii candidate 30 equally ranked IID candidates
MALTODEXTRIN	MALTODEXTRIN	7CVR7L4A2D	SUSPENSION / ORAL		6040 mg	Exact identifier — unii candidate 15 equally ranked IID candidates
POVIDONES	POVIDONE	FZ989GH94E	CAPSULE / ORAL		300 mg	Exact identifier — unii candidate 30 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	LOTION / TOPICAL	NA		Exact identifier — unii candidate 37 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	SOAP / TOPICAL	0.01 %w/w		Exact identifier — unii candidate 37 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	PASTE / DENTAL	NA		Exact identifier — unii candidate 37 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	FILM, SOLUBLE / ORAL	0.04 mg		Exact identifier — unii candidate 37 equally ranked IID candidates
STEARIC ACID	STEARIC ACID	4ELV7Z65AP	TABLET / ORAL		336 mg	Exact identifier — unii candidate 26 equally ranked IID candidates
HYPROMELLOSES	HYPROMELLOSE	3NXW29V3WO	TABLET, EXTENDED RELEASE / ORAL		1472 mg	Exact identifier — unii candidate 27 equally ranked IID candidates
POVIDONES	POVIDONE	FZ989GH94E	TABLET, FILM COATED, EXTENDED RELEASE / ORAL	17 mg		Exact identifier — unii candidate 30 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	TABLET / SUBLINGUAL	0.03 mg		Exact identifier — unii candidate 37 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	SOLUTION / TOPICAL	0.01 %w/w		Exact identifier — unii candidate 37 equally ranked IID candidates
POVIDONES	POVIDONE	FZ989GH94E	CAPSULE, EXTENDED RELEASE / ORAL		56 mg	Exact identifier — unii candidate 30 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	LIQUID / ORAL	NA		Exact identifier — unii candidate 37 equally ranked IID candidates
CELLULOSE, MICROCRYSTALLINE	MICROCRYSTALLINE CELLULOSE	OP1R32D61U	TABLET, FOR SUSPENSION / ORAL		20100 mg	Exact identifier — unii candidate 28 equally ranked IID candidates
SILICON DIOXIDE	SILICON DIOXIDE	ETJ7Z6XBU4	CREAM / VAGINAL		51 mg	Exact identifier — unii candidate 49 equally ranked IID candidates
FD&C BLUE NO. 1	FD&C BLUE NO. 1	H3R47K3TBD	LIQUID / TOPICAL	NA		Exact identifier — unii candidate 37 equally ranked IID candidates
MAGNESIUM STEARATE	MAGNESIUM STEARATE	70097M6I30	LOZENGE / ORAL		420 mg	Exact identifier — unii candidate 39 equally ranked IID candidates
STEARIC ACID	STEARIC ACID	4ELV7Z65AP	TABLET / SUBLINGUAL	9 mg		Exact identifier — unii candidate 26 equally ranked IID candidates
HYPROMELLOSES	HYPROMELLOSE	3NXW29V3WO	CAPSULE, EXTENDED RELEASE / ORAL	119.7 mg		Exact identifier — unii candidate 27 equally ranked IID candidates
SILICON DIOXIDE	SILICON DIOXIDE	ETJ7Z6XBU4	SUSPENSION / ORAL		400 mg	Exact identifier — unii candidate 49 equally ranked IID candidates
MALTODEXTRIN	MALTODEXTRIN	7CVR7L4A2D	GRANULE, FOR SUSPENSION / ORAL		952 mg	Exact identifier — unii candidate 15 equally ranked IID candidates
HYPROMELLOSES	HYPROMELLOSE	3NXW29V3WO	CREAM / TOPICAL	0.1 %w/w		Exact identifier — unii candidate 27 equally ranked IID candidates
SILICON DIOXIDE	SILICON DIOXIDE	ETJ7Z6XBU4	CAPSULE, COATED PELLETS / ORAL		69 mg	Exact identifier — unii candidate 49 equally ranked IID candidates
MALTODEXTRIN	MALTODEXTRIN	7CVR7L4A2D	POWDER, FOR SUSPENSION / ORAL		8000 mg	Exact identifier — unii candidate 15 equally ranked IID candidates

openFDA label cross-check#

OpenFDA label data provides additional search and identifier links. DailyMed’s Structured Product Label is the canonical label on FDA.report. Matching records are deduplicated before they are shown below.

Matched openFDA labels page 1 of 1 · 1 matching rows.

Brand, Generic, Manufacturer table
Brand	Generic	Manufacturer	SPL set ID	Effective date	Available safety fields	Join
2ac2cd33-8c99-4d47-bfc8-4372f2ceb2f2			7b543988-7f16-433a-9eaf-a09d3ecaed05	2026-04-20	Warnings	Exact identifier spl set id: 7b543988-7f16-433a-9eaf-a09d3ecaed05

Reported adverse events (FAERS/openFDA)#

Adverse event summaries are temporarily unavailable. Other product information remains available.