What is NDC 63083-7423?

63083-7423 is the product NDC for L-Tryptophan 7423 (l-tryptophan), Tryptophan 4 [hp_X]/59mL liquid, listed with the FDA by Professional Complementary Health Formulas. It has 1 package NDC, shown above in 10- and 11-digit form.

What drug is associated with this NDC?

L-Tryptophan 7423 (L-Tryptophan).

Professional Complementary Health Formulas, NDC labeler code 63083. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.

What other NDCs exist for L-Tryptophan 7423?

None: this is the only finished product listed under this name.

Is there a related HCPCS / J-code?

Not in Med-Code's curated HCPCS directory.

L-Tryptophan 7423 NDC 63083-7423 | National Drug Code

NDC codes

FDA NDC Directory

Product NDC (as listed)63083-7423Labeler and product segments. Claims need a package NDC.

Product NDC at billing width63083-7423Add the package segment from the table below.

Package NDCs as listed with the FDA, and the 11-digit 5-4-2 form used on claims. The highlighted digit is the added leading zero.
Package NDC	11-digit (billing)	Package	Copy
63083-7423-2	63083742302	59 mL in 1 BOTTLE, DROPPER (63083-7423-2)Marketed from Aug 15, 1985

How the 11-digit form is made: The package segment has 1 digit, so one leading zero is added to it (5-4-1 → 5-4-2). Formatting the NDC does not by itself make it billable — the product, package and quantity must match what was dispensed or administered, and payer rules apply. Conversion rules

Product information

Brand name (proprietary): L-Tryptophan 7423Suffix: 7423
Generic name (nonproprietary): l-tryptophan
Active ingredients: Tryptophan — 4 [hp_X]/59mL
Dosage form: Liquid
Route: Oral
Labeler: Professional Complementary Health FormulasNDC labeler code 63083
Product type: Over-the-counter drug
Marketing category: Unapproved homeopathic
Marketing start: Aug 15, 1984
Listing expires: Dec 31, 2027
Identifiers: Product ID 63083-7423_6fb330ef-c6db-43e9-b1cd-14df3c6a9814SPL ID 6fb330ef-c6db-43e9-b1cd-14df3c6a9814SPL set ID 26635331-75fe-432d-beba-f2a5e80d7c19UNII 8DUH1N11BX

Billing references

What Med-Code can say about coding this product, and where each statement comes from. Nothing here is inferred from the name alone.

HCPCS codeNo match

No HCPCS code in Med-Code's directory. Oral products like this are usually dispensed by a pharmacy and billed by NDC.

NDC on a medical claim

N463083742302 followed by a unit qualifier and the quantity

Package 63083-7423-02. Unit qualifiers: F2 (international unit), GR (gram), ME (milligram), ML (milliliter), UN (unit (each)). The qualifier and quantity depend on what was given. About the N4 qualifier

Product label

Current FDA label (SPL), effective Jan 8, 2026.

Indications (excerpt from the label)

INDICATIONS For the temporary relief of sleep disturbance, sadness, anxiousness, occasional headache, difficulty losing weight, increased appetite, or minor muscle pain or stiffness.*

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

About NDC 63083-7423

What is NDC 63083-7423?: 63083-7423 is the product NDC for L-Tryptophan 7423 (l-tryptophan), Tryptophan 4 [hp_X]/59mL liquid, listed with the FDA by Professional Complementary Health Formulas. It has 1 package NDC, shown above in 10- and 11-digit form.
What drug is associated with this NDC?: L-Tryptophan 7423 (L-Tryptophan).
What is the active ingredient?: Tryptophan.
Who is the labeler?: Professional Complementary Health Formulas, NDC labeler code 63083. The labeler is the company responsible for the label; it may be the manufacturer, a repackager or a distributor.
What other NDCs exist for L-Tryptophan 7423?: None: this is the only finished product listed under this name.
Is there a related HCPCS / J-code?: Not in Med-Code's curated HCPCS directory. See Billing references above.

L-Tryptophan 7423 (L-tryptophan) NDC 63083-7423