From today we know that we have an extra ally against flu, coughs, and colds, the Icelandic lichen! This remedy has in fact shown an emollient, expectorant, and antiviral action, as demonstrated by various scientific research, such as the latest published in the journal Bulletin of experimental biology and Medicine (Makarevich et al, Bull Exp Biol Med, 2023).
Icelandic lichen blocks influenza viruses, the study scientists conducted a laboratory study in which they placed aqueous and ethanol extracts of Icelandic lichen in contact with cells that had come into contact with two types of influenza strains, in particular the A/H3N2 influenza virus and the A/H5N1 avian influenza virus. Well, both extracts showed antiviral action by suppressing the replication of the virus.
The ethanol extracts showed a more powerful action than the water extract, which required ten times the concentration to have the same action. Icelandic lichen, other properties and how to take itThe study shows that the Icelandic lichen, scientific name Cetraria islandica, has an antiviral action against influenza viruses.
Added to this are other properties reported by previous scientific studies, which demonstrate that Icelandic lichen is antibiotic and expectorant, soothes irritated mucous membranes, and helps in case of cough, even dry, and sore throat (Grujicic et al, Cytotechnology, 2014).
You can find Icelandic lichen extracts in the form of a mother tincture, herbal tea preparation, syrup or tablets in pharmacies and herbalist shops. Icelandic lichen can cause some temporary side effects in susceptible people, such as itching, nausea and heartburn.
Regarding the dosage, follow the instructions on the package. Be careful and ask your doctor for advice if you are taking medications as Icelandic lichen may hinder their absorption.