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Drugs and Health Products

Monograph: California poppy

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Date: 2008-03-17


Eschscholzia californica (USDA 2008)

Proper Name(s)

Eschscholzia californica Cham. (Papaveraceae) ( USDA 2008 )

Common Name(s)

California poppy ( McGuffin et al. 2000 )

Source Material

Herb top ( Mills and Bone 2005 , Hoffmann 2003 )

Route Of Administration


Dosage Form(s)

Those suited to the allowable route(s) of administration. This monograph is not intended to include food-like dosage forms such as bars, chewing gums or beverages.

Use(s) or Purpose(s)

Statement(s) to the effect of:



Preparation: Dry, Powder, Decoction & Infusion + All Non-Standardised Extracts

Dose(s): 0.2 - 3 Grams per day, dried herb tops

See Appendix 1 for examples of appropriate dosage preparations and frequencies of use, according to cited references. The purpose of Appendix 1 is to provide guidance to industry.

Duration of use

No statement is required

Risk Information

Statement(s) to the effect of:

Caution(s) and Warning(s):
  • Consult a health care practitioner if symptoms persist.
  • Consult a health care practitioner if symptoms worsen.
  • Consult a health care practitioner prior to use if you are breastfeeding  (Brinker 2010, Mills and Bone 2005)
  • Consumption with alcohol, other medications or natural health products with sedative and/or analgesic properties is not recommended  (Mills and Bone 2005, Hoffmann 2003, Brinker 2001)
  • Sleep aid:
    Consult a health care practitioner if sleeplessness persists continuously for more than 3 weeks (chronic insomnia)  (Berardi et al. 2002, DiPiro et al. 2002)

Do not use if you are pregnant  (Brinker 2001, Blumenthal et al. 2000)

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  (Mills and Bone 2005, Felter and Lloyd 1983[1898])

Non-medicinal ingredients

Must be chosen from the current Natural Health Products Ingredients Database and must meet the limitations outlined in the database.


  • The finished product specifications must be established in accordance with the requirements described in the NHPD Quality of Natural Health Products Guide.
  • The medicinal ingredient must comply with the requirements outlined in the Natural Health Products Ingredient Database (NHPID).

References cited

  • 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.
  • Blumenthal M, Goldberg A, Brinckmann J, editors. Herbal Medicine: Expanded Commission E Monographs. Boston (MA): Integrative Medicine Communications; 2000.
  • Brinker F. 2001. Herb Contraindications and Drug Interactions, 3rd edition. Sandy (OR): Eclectic Medical Publications.
  • Brinker F. 2010. Online Updates and Additions to Herb Contraindications and Drug Interactions, 3rd edition. Sandy (OR): Eclectic Medical Publications. [Updated 2010 July 13; Accessed 2013 January 30]. Available from:
  • 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.
  • Felter HW, Lloyd JU. 1983. King's American Dispensatory, Volume 2, 18th edition. Sandy (OR): Eclectic Medical Publications [Reprint of 1898 original].
  • Hoffmann D. 2003. Medical Herbalism: The Science and Practice of Herbal Medicine. Rochester (VT): Healing Arts Press.
  • McGuffin M, Kartesz JT, Leung AY, Tucker AO, editors. 2000. Herbs of Commerce, 2nd edition. Austin(TX): American Herbal Products Association.
  • Mills S, Bone K. 2005. The Essential Guide to Herbal Safety. St. Louis (MO): Elsevier Churchill Livingstone.
  • USDA 2008: ARS, National Genetic Resources Program. Germplasm Resources Information Network (GRIN). National Germplasm Resources Laboratory, Beltsville (MD). [Accessed 2008-01-21]. Available at

References reviewed

  • McGuffin M, Hobbs C, Upton R, Goldberg A, editors. 1997. American Herbal Products Association's Botanical Safety Handbook. Boca Raton (FL): CRC Press.
  • Moore M. Medicinal Plants of the Pacific West. Santa Fe (NM): Red Crane Books, Inc.; 1993.
  • Sayre LE. A Manuel of Organic Materia Medica and Pharmacognosy, 4th edition. Philadelphia (PA): P. Blakiston's Son & Co; 1917. [Accessed 2008-02-14]. Available from:

Appendix 1: Examples of appropriate dosage preparations, frequencies of use and directions for use.


  • 1.5-3.0 g dried equivalent, per day
    (1:2, 3-6 ml) (Mills and Bone 2005)
  • 0.2-0.8 g dried equivalent, per day
    (1:5, 1-4 ml, 25% ethanol) (Hoffmann 2003)

Directions for use:

Take once at night (Hoffmann 2003).