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This monograph is intended to serve as a guide to industry for the preparation of Product Licence Applications (PLAs) and labels for natural health product market authorization. It is not intended to be a comprehensive review of the medicinal ingredient.



December 18, 2018

Proper name(s), Common name(s), Source material(s)

Table 1. Proper name(s), Common name(s), Source material(s)
Proper name(s) Common name(s) Source material(s)
Proper name(s) Part(s) Preparation

Scutellaria lateriflora

  • Helmet flower
  • Hoodwort
  • Mad-dog skullcap
  • Quarter bonnet
  • Scullcap
  • Skullcap
  • Vriginian skullcap
  • Scutellaria lateriflora

    Herb top


    References: Proper name: USDA 2018; Common names: McGuffin et al. 2000; Source material: Barnes et al. 2007.

    Route of Administration


    Dosage Form(s)

    This monograph excludes foods or food-like dosage forms as indicated in the Compendium of Monographs Guidance Document.

    Acceptable dosage forms for any age category listed in this monograph for the specified route of administration are listed in the Compendium of Monographs Guidance Document.

    Use(s) or Purpose(s)

    The following combined use(s) or purpose(s) is/are also acceptable:

    (Traditionally) used in Herbal Medicine to help relieve restlessness and/or nervousness (calmative) and as a sleep aid (during times of mental stress) (Bradley 2006; Boon and Smith 2004; Hoffmann 2003; Tilgner 1999; Williamson et al. 1988; Ellingwood 1983; Felter and Lloyd 1983).


    Claims for traditional use must include the term "Herbal Medicine", "Traditional Chinese Medicine", or "Ayurveda".



    Adults 18 years and older


    Methods of preparation: Dry, Powder, Non-Standardised Ethanolic Extracts (Dry extract, Tincture, Fluid extract)

    0.25 - 12 grams of dried herb top, per day (Bradley 2006; Mills and Bone 2005; Boon and Smith 2004; Williamson et al. 1988; BHP 1983)

    Methods of preparation: Non-Standardised Aqueous Extracts (Dry extract, Decoction, Infusion)

    3 - 12 grams of dried herb top, per day (Bradley 2006; Mills and Bone 2005; BHP 1983).

    Direction(s) for use

    No statement required.

    Duration(s) of Use

    No statement required.

    Risk Information

    Caution(s) and warning(s)

    Sleep aid

    Consult a health care practitioner/health care provider/health care professional/doctor/physician if sleeplessness persists for more than 4 weeks (chronic insomnia) (Berardi et al. 2002; Dipiro et al. 2002).

    All products

  • Consult a health care practitioner/health care provider/health care professional/doctor/ physician if symptoms persist or worsen.
  • Avoid taking with alcohol or products that cause drowsiness (Brinker 2010; Gennaro 2000).
  • Contraindication(s)

    Do not use this product if you are pregnant or breastfeeding (Barnes et al. 2007; Boon and Smith 2004).

    Known adverse reaction(s)

    Some people may experience drowsiness. Exercise caution if operating heavy machinery, driving a motor vehicle or involved in activities requiring mental alertness (Bradley 2006; Tilgner 1999; Williamson et al. 1988; Ellingwood 1983; Felter and Lloyd 1983).

    Non-medicinal ingredients

    Must be chosen from the current Natural Health Product Ingredient Database (NHPID) and must meet the limitations outlined in the database.

    Storage conditions

    No statement required.


  • The finished product specifications must be established in accordance with the requirements described in the Natural and Non-prescription Health Products Directorate (NNHPD) Quality of Natural Health Products Guide.
  • The medicinal ingredient must comply with the requirements outlined in the NHPID.
  • References Cited

  • Barnes J, Anderson LA, Philipson JD. Herbal Medicines, 3rd edition. London (UK): The Pharmaceutical Press; 2007.
  • Berardi RR, DeSimone EM, Newton GD, Oszko MA, Popovich NG, Rollins CJ, Shimp LA, Tietze KJ, editors. Handbook of Nonprescription Drugs: An Interactive Approach to Self-Care, 13th edition. Washington (DC): American Pharmaceutical Association; 2002
  • Boon H, Smith MJ. The Complete Natural Medicine Guide to the 50 Most Common Medicinal Herbs, 2nd edition. Toronto (ON): Robert Rose Inc; 2004.
  • BHP 1983: British Herbal Pharmacopoeia. Cowling (UK): British Herbal Medical Association; 1983.
  • Bradley PR, editor. British Herbal Compendium: A Handbook of Scientific Information on Widely Used Plant Drugs, Volume 2. Bournemouth (UK): British Herbal Medicine Association; 2006.
  • Brinker F. Herb Contraindications and Drug Interactions, 4th edition. Sandy (OR): Eclectic Medical Publications; 2010.
  • Dipiro JT, Talbert RL, Yee GC, Matzke GR, Wells BG, Posey LM. Pharmacotherapy: A pathophysiologic approach. 5th edition. New York (NY): The McGraw-Hill Companies, Inc.; 2002.
  • Ellingwood F. American Materia Medica, Therapeutics and Pharmacognosy. Sandy (OR): Eclectic Medical Publications; 1983 [Reprint of 1919 original].
  • Felter HW, Lloyd JU. King's American Dispensatory, Volume 1, 18th edition. Sandy (OR): Eclectic Medical Publications; 1983 [Reprint of 1898 original].
  • Gennaro AR, editor. Remington: The Science and Practice of Pharmacy, 20th edition. Washington (DC): Lippincott Williams and Wilkins; 2000.
  • Hoffmann D. Medical Herbalism. Rochester (VT): Healing Arts Press; 2003.
  • McGuffin M, Kartesz JT, Leung AY, Tucker AO, editors. Herbs of Commerce, 2nd edition. Silver Spring (MD): American Herbal Products Association; 2000.
  • Mills S, Bone K. The Essential Guide to Herbal Safety. St. Louis (MO): Elsevier Churchill Livingstone; 2005.
  • Mills S, Bone K. Principles and Practice of Phytotherapy. Toronto (ON): Churchill Livingstone; 2000.
  • Tilgner S. Herbal Medicine from the Heart of the Earth. Creswell (OR): Wise Acre Press; 1999.
  • Williamson EM, Evans FJ, Wren RC. Potter's New Cyclopaedia of Botanical Drugs and Preparations. Saffron Walden (UK): C.W. Daniel Company Limited; 1988.
  • USDA 2018: United States Department of Agriculture, Agricultural Research Service, National Genetic Resources Program. Germplasm Resources Information Network (GRIN). Scutellaria lateriflora L. National Germplasm Resources Laboratory, Beltsville (MD). [Accessed 2018 October 1]. Available from:
  • References Reviewed

  • McGuffin M, Hobbs C, Upton R, Goldberg A, editors. American Herbal Products Association's Botanical Safety Handbook. Boca Raton (FL): CRC Press; 1997.