Evidence supporting the use of: Labrador tea
For the health condition: Colds (antiviral)

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Labrador Tea (Rhododendron groenlandicum, formerly Ledum groenlandicum) has a long history of use among Indigenous peoples of North America, particularly in Canada and Alaska, as a traditional remedy for colds and respiratory ailments. The leaves were brewed into teas or infusions believed to help alleviate symptoms such as cough, sore throat, and congestion. This traditional application is documented in ethnobotanical literature and oral histories. However, while these practices are well attested, rigorous scientific studies specifically validating Labrador Tea’s antiviral effects or its efficacy against the common cold are lacking. A handful of laboratory investigations have reported that some constituents of Labrador Tea, such as essential oils and flavonoids, possess mild antimicrobial or anti-inflammatory properties, but these studies typically do not extend to human trials or direct antiviral activity against cold viruses. Thus, while traditional use is robust and the plant continues to be used in herbal medicine, scientific validation remains limited. Safety concerns also exist, as Labrador Tea contains ledol, a compound that can be toxic in large quantities. Therefore, while its use for colds is primarily justified by tradition and anecdote, not by strong scientific evidence, it remains a culturally significant remedy in certain communities.

More about labrador tea
More about Colds (antiviral)

Other ingredients used for Colds (antiviral)

Acacetin
Agastache
AHCC
Allicin
Alliin
Allium tuberosum
Allspice
Allyl isothiocyanate
Allyl sulfide
Aloe vera
alpha-terpineol
alpinia galangal
amentoflavone
anamu
Andrographis
andrographolide
anthocyanins
apigenin
arabinogalactan
Asam gelugor
ash
Asteraceae
atractylone
Aureobasidium pullulans
Autumn elaeagnus
baicalin
Baikal Skullcap
balsam
Baphicacanthus cusia
Basidiomycota
basil
Bassia scoparia
bee hive
bee products
bee propolis
berry
beta-pinene
Bidens pilosa
bilberry
bishop\'s weed
bitter grass
black cumin
black currant
black galingale
black garlic
black nightshade
black seed
blueberry
Bombax
borneol
Broussonetia
buckthorn
caffeic Acid
Camellia sinensis
capillary artemisia
carrageenan
carvacrol
cat's claw
catechins
Celosia
Chinese mountain ant
Chinese raisintree
Chondrus
chrysanthemum
cinnamaldehyde
cinnamon
Cistus
citron
Citrus
citrus bioflavonoids
Clerodendrum trichotomum
clove
coconut
commiphora
common madia
coriolus mushroom
costus
cowherb
curry leaf
David\'s milkberry
deoxyandrographolides
Echinacea
echinacea purpurea
Elder
elderberry
epigallocatechin gallate (EGCG)
essential oil blend
European Elder
flavones
flavonoids
flavonones
forsythia
fruit
fulvic acid
fungus
Galangal
Gallesia
gallotannin
gamma-terpinene
ganoderma
garlic
garlic bulb
ginger
glyceryl monolaurate
Glycyrrhetinic acid
Glycyrrhizin
goji berry
goldthread
green tea
Hedyotis
Himalaya berry
honey
honey loquat syrup
honeysuckle
Houttuynia
hyssop
Indian frankincense
Indian kinotree
indigo leaves
Isatis
knotweed
labrador tea
Lactoferrin
Lactoperoxidase
Laggera pterodonta
lauric acid
lemon
lemongrass
lichen
licorice root
Ligusticum
ligustilides
Ligustrum
Litsea
liverwort
Lomatium
luffa
luteolin
mangostin
Mastic gum
Melia
Mineral ascorbate
Monolaurin
Monoterpenes
Morinda
Morus
Mugwort
Mushroom
Naphthoquinones
Neem tree
Neoandrographolides
nut grass
Nymphaea nouchali
oregano
oriental arborvitae
Osha
Osmanthus
Oxystelma
papaya
Paris polyphylla
Patrinia
pau d'arco
perilla
Petiveria
Phaeophyceae
Phellodendron
phellodendron amurense
phenolic compounds
Phenylpropanoids
Phyllanthus
pineapple
Piper nigrum
Polygonum
pomegranate
Propolis
quercetin
ravinsara
resveratrol
rhizome
rosemary
Salvia
Sambucus nigra
Sandalwood
saponins
schizonepeta
Sesquiterpenes
shiitake mushroom
Shikimic Acid
Shogaol
Smartweed
Solanaceae
Solanum indicum
Sophora
soursop
spirulina
Tagetes
Tamaricaceae
Tayuya
Tea
Terpenoids
Theaflavin
Thiosulfinate
thyme
Thymus
Trametes
Triterpenes
turmeric
Verbascoside
Viola
Violet
Visnea Mocanera
vitamin C
vitamin D
Wasabi
Waterhyssop
White Tea
xanthium (cockleburs)
Xanthorrhizol
zanthoxylum
Zinc
Zingiberene

Products containing labrador tea

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