Product information

From Health Canada

Note - The product information found within this database originates from organizations not subject to the Official Languages Act and is available in the language in which it was written and submitted to Health Canada.

Note - The market status of a product is now available in the LNHPD and identifies if a product is "marketed" or "not marketed" in Canada. Product licence holders may voluntarily provide the Natural and Non-Prescription Health Products Directorate (NNHPD) with information about whether their product is currently available to Canadian consumers. Where no information has been provided, the default status is "not marketed". The "current status" field remains unaffected and will continue to indicate the status of the product licence (i.e., active, discontinued, stop sale, cancelled, or suspended). Note that where a licence has been suspended, cancelled or under stop sale, the product cannot be legally sold in Canada.

Product licence holders - if you wish to update a product's market status, you are invited to complete the Natural Health Products Market Notification Web Form. As with all other notifications, there is no current service standard. The NNHPD will process the market status update as soon as feasible, based on its available resources. As a reminder, market notification is voluntary; therefore, a licence holder is not required to wait for the LNHPD to be updated before a licensed product is sold in Canada. As such, products that are identified in the LNHPD as "not marketed" may still be sold in Canada.

New search

Natural Product Number (NPN):
80000017
Market status:
Marketed
Licence Status:
Active
Brand name(s):
L-Tyrosine
Licence holder:
New Roots Herbal Inc.
Dosage Form:
Capsule
Recommended route of administration:

Oral

Recommended dose:
Sub population (Sub Pop.) Quantity (Qty) Frequency (Freq.)
Sub Pop. Age Min. Max. UoM Footnote1 Age Qty Min. Max. UoM Qty Freq. Min. Max. UoM Freq.
Adults 1.0 2.0 capsule 1 daily
Recommended use or purpose:
Helps in the management of some forms of stress (physical, psyhological, sleep depravation, multitasking etc.) (Avraham 2001; Deijen 1999; Tomas 1999; Neri 1995; Deijen 1994; Shurtleff 1994; Banderet 1989; Elwes 1989)
Risk Information:
Cautions and Warnings 
Consult a health care provider if you have hyperthyroidism or Grave's Disease (Jellin et al. 2003) Consult a health care provider if you are taking dopamine, thyroid hormone medication and/or contraceptive medications (van Spronsen 2001).
Contra-Indications 
Do not use if you are pregnant or breastfeeding.
Known Adverse Reactions 
Discontinue if you experience nausea, headache, fatigue, hearburn or joint pain (Jellin et al. 2003).
List of medicinal ingredients:
Medicinal ingredients Quantity (Qty) Extract Potency
(S)-alpha-Amino-4-hydroxybenzenepropanoic acid 500.0 mg
List of non-medicinal ingredients:
  • Hypromellose
  • Magnesium Stearate
  • Microcrystalline cellulose
  • Purified water
  • Silicon dioxide
Date of licensing:
2004-06-11
Revised date of licence:

Application information

Related information

Compendium of monographs

Contact us

For technical support or if you have general questions concerning the content of this database, please contact the Natural Health Products Directorate (NHPD).

Date modified: