L-Cysteine

Manufacturer: Professional Complementary Health Formulas | Natural Pharmaceutical Manufacturing LLC
Effective date: 2026-01-08
Label type: HUMAN OTC DRUG LABEL
Version: 2
Source: monthly-update
Hydrated at: 2026-06-03 17:50:07

Label at a glance#

ProductL-Cysteine 7403

Active ingredientCYSTEINE

Label structure9 sections

Dosage and administration

Place drops under tongue 30 minutes before/after meals. Adults and children 12 years and over: Take 10 drops up to 3 times per day. Consult a physician for use in children under 12 years of age.

Label contents#

Full prescribing information#

ACTIVE INGREDIENTS

OTC - ACTIVE INGREDIENT SECTION

L-Cysteine 4X, 7X, 12X

QUESTIONS

OTC - QUESTIONS SECTION

Professional Formulas

PO Box 2034 Lake Oswego, OR 97035

INDICATIONS

INDICATIONS & USAGE SECTION

For the temporary relief of nausea, diarrhea, occasional headache, dizziness or loss of balance, irritability, sneezing, mild back pain or stiffness, or feelings of discomfort or uneasiness.*

OTC - PURPOSE SECTION

*Claims based on traditional homeopathic practice, not accepted medical evidence. Not FDA evaluated.

WARNINGS

WARNINGS SECTION

In case of overdose, get medical help or contact a poison control center right away.

OTC - KEEP OUT OF REACH OF CHILDREN SECTION

Keep out of the reach of children.

OTC - PREGNANCY OR BREAST FEEDING SECTION

If pregnant or breastfeeding, ask a healthcare professional before use.

DIRECTIONS

DOSAGE & ADMINISTRATION SECTION

Place drops under tongue 30 minutes before/after meals. Adults and children 12 years and over: Take 10 drops up to 3 times per day. Consult a physician for use in children under 12 years of age.

OTHER INFORMATION

OTHER SAFETY INFORMATION

Tamper resistant. If seal is broken, do not use. After opening, close container tightly and store at room temperature away from heat.

INACTIVE INGREDIENTS

INACTIVE INGREDIENT SECTION

20% ethanol, purified water.

LABEL

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

Est 1985

Professional Formulas

Complementary Health

L-Cysteine

Homeopathic Remedy

2 FL. OZ. (59 mL)

Label image

DailyMed Product Concepts#

Product concept, Relation, Version table
Product concept	Relation	Version	Effective
2e254488-9fcb-41b3-a7c3-e2c9a3941b29	Product name	1	20200603
b4ff0805-126a-406d-9cae-fc34fd8e8889	Product name	1	20190711

FDA-Initiated Inactive NDC Indexing#

NDC, Effective, Action table
NDC	Effective	Action	Document	Indexing SPL	Related label
63083-7403-2	2026-01-09	C162847	48780-1	1030e365-260e-111a-e063-dadaa90a10e2	LCYS
63083-7403-2	2026-01-09	C162847	48780-1	1030e365-260e-111a-e063-dadaa90a10e2	LCYS
63083-7403-2	2024-01-30	C162847	48780-1	1030e365-260e-111a-e063-dadaa90a10e2	LCYS
63083-7403-2	2024-01-30	C162847	48780-1	1030e365-260e-111a-e063-dadaa90a10e2	LCYS

DailyMed Package Descriptions#

Package NDC, Product, Description table
Package NDC	Product	Description	Form	Quantity	Strength	SPL version
63083-7403-2	L-Cysteine7403	59 mL in 1 BOTTLE, DROPPER	LIQUID	59		2

Products#

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

DailyMed product names page 1 of 1 · 5 matching rows.

L-Cysteine 7403
L-Cysteine
CYSTEINE
ALCOHOL
WATER

NDC Codes#

Product NDC, Package NDC table
Product NDC	Package NDC
63083-7403	63083-7403-2

Ingredients#

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

DailyMed ingredient rows page 1 of 1 · 3 matching rows.

Name, UNII, Kind table
Name	UNII	Kind
CYSTEINE	K848JZ4886	ACTIB
ALCOHOL	3K9958V90M	IACT
WATER	059QF0KO0R	IACT

Source Document#

Source XML

Older Hydrated Versions#

Version, Effective date, Source table
Version	Effective date	Source	Hydrated
1	2019-08-15	full-release	2026-06-01 02:16:39

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
L-Cysteine 7403	L-CYSTEINE	Professional Complementary Health Formulas	2061fdfd-1ceb-4c0b-b33a-10ebd30fbef5	2026-01-08	Warnings	Exact identifier ndc (package): 63083-7403-2 ndc (product): 63083-7403 ndc11 (package): 63083740302 spl id: f35466c4-1e95-4c90-8342-84acc52a124e spl set id: 2061fdfd-1ceb-4c0b-b33a-10ebd30fbef5

Reported adverse events (FAERS/openFDA)#

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