Iceland Moss (cetraria islandica, eryngo leaved liverwort): Dosing and Uses

Suggested dosing of Cetraria islandica, eryngo leaved liverwort (Iceland moss)

Dried Plant

4-6 g/d div TID PO

Tea

1 cup several times daily. Steep or simmer 1.5-3 grams of the dried plant in 150 mL boiling water for 5-10 minutes and then strain

Suggested uses of Cetraria islandica, eryngo leaved liverwort (Iceland moss)

Bronchitis, cough, fever, dyspepsia, appetite loss, sore throat, vomiting

Efficacy

Has antiinflammatory, antiemetic & demulcent activity

Reportedly also a galactogogue

Cetraria islandica, eryngo leaved liverwort (Iceland moss) adverse (side) effects

None at routine doses

Warnings

Cautions

GI irritation & liver problems (if used in excessive doses & for prolonged periods)

In rare cases, external use can trigger sensitivity reactions

Pregnancy and lactation

Pregnancy category: no adverse effects known

Lactation: no adverse effects known

Pregnancy categories

A: Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.

B: May be acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk.

C: Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done.

D: Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk.

X: Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist.

NA: Information not available.

Pharmacology of Cetraria islandica, eryngo leaved liverwort (Iceland moss)

Metabolism: N/A

Excretion: N/A

Mechanism of action

Organic acids help soothe inflammation & fight infection

Rich in mucilages - demulcent action helps in GI problems