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Aloe Vera (gel)  Aloe barbadensis  Consult health care practitioner if you are taking medications, or have a medical condition.

Angelica  Angelica archangelica Not to be used during pregnancy. Avoid prolonged exposure to
sunlight. May cause photo toxicity at high doses.

Arnica  Arnica montana  Not to be used during pregnancy. Use internally only under the supervision of an expert qualified in the appropriate use of this substance. External use advised.

Black Cohosh  Cimicifuga racemosa  For external use only.  Not to be used during pregnancy or while nursing.

Black Walnut (hulls & leaf) Juglans nigra  Not recommended for long-term use.

California Poppy  Eschscholzia californica  Not to be used during pregnancy.  May potentiate pharmaceutical MAO inhibitors.  Not recommended for long-term use.

Catnip Nepeta cataria  Not to be used during pregnancy, or nursing, external use only.

Cayenne (powder) Capsicum frutescens  Avoid contact with eyes or open wounds.  Not recommended for long-term use.

Cedar (eastern) Thuja occidentalis Shavings - Not to be used during pregnancy. Use only under the supervision of an expert qualified in the appropriate use of this substance.

Cedar (western) Libocedrus decurrens  Keep out of reach of children.  For external use only.  Dilute properly.  Avoid if pregnant.

Chaparral  Larrea tridentata  Seek advice from a health care practitioner before use if you have any history of liver or kidney disease.  Discontinue use if nausea, fever, fatigue or jaundice occur (e.g. dark urine or yellow discoloratoration of the eyes).

Chaparro  Castela emoryi   Not to be used during pregnancy or nursing.  Consult expert advice before use. Not for long term use.

Chaste Berry  Vitex agnus-castus   Not to be used during pregnancy.  May counteract the effectiveness of birth control pills.

Cinnamon (powder & sticks) Cinnamomum cassia   Not to be used during pregnancy.

Coltsfoot (leaf, flower) Tussilago farfara   For external use only.  Do not apply to broken or abraded skin.  Not to be used during pregnancy or while nursing.  Not recommended for long-term use.

Comfrey (leaf & root)  Symphytum officinalis   For external use only.  Do not apply to broken or abraded skin. Not to be used during pregnancy or while nursing.  Not recommended for long- term use.

Dandelion (leaf & root)  Taraxacum officinalis   Not recommended for long-term use.

Devils Claw (root)  Harpagophytum procumbens  Not recommended for long term use, or persons with stomach inflammation/ulcers, serious digestion or liver problems.

Dong Quai Angelica sinensis  For external use only.

Elecampane  Inula helenium  Not to be used during pregnancy or while nursing.  Large doses may cause vomiting, diarrhea, spasms and symptoms of paralysis.

Eucalyptus Eucalyptus spp.  Not to be used by persons with inflammatory diseases of the gastro-intestinal and bile ducts or severe diseases of the liver.  Do not use eucalyptus preparations on areas of the face and especially the nose in infants and young children.  Not for extended use.

Gentian (root)  Gentiana lutea Not to be used by persons with gastric or duodenal ulcers or when gastric irritation or inflammation is present.  Consult a health care practitioner prior to use if you are pregnant or suffering from high blood pressure.  Not for extended use.

Ginger Zingiber officinalis  Not to be used during pregnancy.  Person with gallstones or serious digestion or liver problems should consult a health care practitioner before use.  Not for extended use.

Goldenrod (leaf, flower) Solidago canadensi   Persons with chronic kidney disorders should consult a health care practitioner before use. Not for extended use.

Horehound  Marrubium vulgare  Not to be used during pregnancy, or nursing. External use only.

Horsetail  Equisetum arvense  Should not be used by persons with cardiac or renal dysfunction.  Not to be used during pregnancy or nursing.

Jewelweed  Impatiens capensis  Not to be used by persons with renal problems.  Not recommended for long term use.

Kava Kava Piper methysticum   Not for use by persons under the age of 18. If pregnant, nursing or taking a prescription drug. Consult a health care practitioner prior to use.  Do not exceed recommended dose.  Excessive consumption may impair ability to drive or operate heavy equipment.  Not recommended for consumption with alcoholic beverages.

Kinnikinnick  Arctostaphylos uva-ursi   Canadian Government regulations require this plant  to be labeled “Caution”.  Do not consume during pregnancy.

Lemongrass  Cymbopogon citrates Not to be used during pregnancy or nursing. External use only.

Lobelia  Lobelia inflata  Not to be used during pregnancy. Do not exceed recommended dose.  May cause nausea and vomiting.  May be harmful if used incorrectly.

Motherwort  Leonurus cardiaca   Not to be used during pregnancy or nursing. For external use only.

Mugwort  Artemisia vulgaris   Not to be used during pregnancy or nursing. External use only.

Myrrh Gum (pea)  Commiphora myrrh  Not to be used during pregnancy or  nursing. External use only.

Nutmeg (nut powder)  Myristica fragrans Not to be used during pregnancy. Use only under supervision of qualified expert.

Orange Peel   Citrus aurantium  May cause photo toxicity. Avoid prolonged exposure to sun when using.

Oregon Grape (root) Mahonia aquifolium  Not to be used during pregnancy or  nursing. External use only.

Osha  Ligusticum porteri Not to be used during pregnancy or nursing. External use only.

Pennyroyal Hedeoma pulegioides   Not to be used during  pregnancy or nursing. External use only.  Not recommended for  persons with history of kidney stones, renal dysfunction or inflammation.

Pleurisy Root Asclepias tuberosa   Not to be used during pregnancy or nursing. External use only.

Pokeroot  Phytolacca americana For external use unless otherwise directed by an expert. May be harmful if used incorrectly.  Proper usage information should be obtained by consulting a health professional or proper reference material.

Red Clover (leaf, flower) Trifolium pratense  Not to be used during pregnancy or nursing. External use only.  Not recommended for persons taking blood thinning agents.

Rhubarb   Rheum palmatum  Consult expert if you are taking medication.

Wormwood Artemisia absinthium  May be harmful if used incorrectly. Proper usage information obtained by consulting a health professional or proper reference materials before use.

Yarrow  Achillea millefolium May be harmful if used incorrectly. Proper usage information obtained by consulting a health professional or proper reference materials before use. 
Product Safety Guidelines
These guidelines are based on the American Herbal Products Association Botanical Safety Index coupled with the extensive knowledge and experience of Nia Cú Herbs and are provided to create meaningful safety classifications. 

This is not intended as a complete or conclusive list.  All herbs should be used in a rational and informed manner.  Illness or unpleasant reactions can occur from excessive consumption, individual sensitivities and allergic reactions. 

Seek qualified expert advice before using a botanical or herbal product  with which you are unfamiliar.
                                                                                                    

Information and products on this website are not intended to treat, cure, prevent or diagnose any disease; nor are they intended
to prescribe in any way. Nia Cú Herbs does not take any responsibilty for your experience in using any of these products.
None of the statements on this website have been endorsed by the Food & Drug Administration.
Seek qualified expert advice before using a botanical or herbal product with which you are unfamiliar.
safety guidelines
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