Health Guide
Drug Guide

Iceland moss

What is it?

Iceland moss is an herbal medicine used for cough, ulcers, red or sore throat, and lack of appetite or upset stomach.

Other names for Iceland Moss include: Cetraria Islandica, Centraria, Consumption Moss, Iceland Lichen, and Lichen Islandicus.

Ask your doctor, nurse, or pharmacist if you need more information about this medicine or if any information in this leaflet concerns you.

Before Using:

Tell your doctor if you


Talk with your caregiver about how much Iceland Moss you should take. The amount depends on the strength of the medicine and the reason you are taking Iceland Moss. If you are using this medicine without instructions from your caregiver, follow the directions on the medicine bottle. Do not take more medicine or take it more often than the directions tell you to.

To store this medicine:

Keep all medicine locked up and away from children. Store medicine away from heat and direct light. Do not store your medicine in the bathroom, near the kitchen sink, or in other damp places. Heat or moisture may cause the medicine to break down and not work the way it should work. Throw away medicine that is out of date or that you do not need. Never share your medicine with others.


Side Effects:

Stop taking your medicine right away and talk to your doctor if you have any of the following side effects. Your medicine may be causing these symptoms which may mean you are allergic to it.

Other Side Effects:

You may have the following side effects, but this medicine may also cause other side effects. Tell your doctor if you have side effects that you think are caused by this medicine.


1. Bisset NG: Cetrariae lichen. In: Herbal Drugs and Phytophamaceuticals: a handbook for practice on a scientific basis. CRC Press, Boca Raton, FL; 1994:137-139.

2. Weiss RF: Herbal Medicine. Beaconsfield Publishers, Beaconsfield, UK; 1988:38-39.

3. Blumenthal, Busse, Goldberg, et al: The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines, The American Botanical Council, Austin, TX; 1998.

4. Fetrow C & Avila J: Professional's Handbook of Complementary and Alternative Medicines. Springhouse Corporation, Springhouse, PA;1999.

5. Blumenthal M, Goldberg A, Brinckmann J: Herbal Medicine: Expanded Commission E Monographs. The American Botanical Council, Austin, TX; 2000: 212-214.

Last Updated: 9/15/2016

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