COVID-19 Advisory

Concerns related to coronavirus disease 2019 (COVID-19) have spurred interest in dietary supplements and alternative therapies with purported “immune boosting” effects. These products and therapies are marketed as being able to promote or “boost” the body’s natural immune function. Consumers may be led to believe that by boosting immune function, these products or therapies help the body fight off infections such as COVID-19. However, there is no good evidence that "immune boosters" or other supplements can prevent, treat, or cure COVID-19 or other viral infections.

The U.S. Food and Drug Administration (FDA) continues to issue warning letters to companies selling fraudulent products with claims to prevent, treat, mitigate, diagnose, or cure COVID-19. A list of firms that have been issued such warning letters from the FDA can be found at the following FDA website.

Below is a list of ingredients contained in products that have received warnings from the FDA for selling products with fraudulent claims related to COVID-19. To find out more about these ingredients, including potential safety concerns, click on the ingredient name to access the Natural Medicines ingredient monograph (subscription required).

Aromatherapy

Also known as:

Astragalus

Scientific name:

Also known as:

Baikal skullcap

Scientific name:

Also known as:

Note: This ingredient is not the same as skullcap (Scutellaria lateriflora).

Boneset

Scientific name:

Also known as:

Note: This ingredient is not the same as gravel root (Eupatorium purpureum).

Cannabidiol

Also known as:

Carbon 60

Also known as:

Ceylon cinnamon

Scientific name:

Also known as:

Chaga

Scientific name:

Also known as:

Chlorine dioxide

Also known as:

Note: These products are often sold as sodium chlorite solutions with instructions to mix the solution with citric acid or another acid to form chlorine dioxide.

Colloidal silver

Also known as:

Cordyceps

Scientific name:

Also known as:

Danshen

Scientific name:

Also known as:

Note: This ingredient is not the same as sage (Salvia officinalis).

Dong quai

Scientific name:

Also known as:

Echinacea

Scientific name:

Also known as:

Elderberry

Scientific name:

Also known as:

Fulvic Acid

Also known as:

Green Tea

Scientific name:

Also known as:

Halotherapy

Also known as:

Homeopathy

Also known as:

Hu zhang

Scientific name:

Also known as:

Humic Acid

Also known as:

Kudzu

Scientific name:

Also known as:

Note: This ingredient is not the same as Arrowroot (Maranta arundinacea), Brazilian Arrowroot (Manihot esculenta), or Indian Arrowroot (Euonymus atropurpureus or Curcuma zedoaria).

Licorice

Scientific name:

Also known as:

Magnet Therapy

Also known as:

Nasal irrigation

Also known as:

Nattokinase

Also known as:

New Jersey tea

Scientific name:

Also known as:

Niacin

Also known as:

Rhodiola

Scientific name:

Also known as:

Quercetin

Also known as:

Stem Cell Therapy (Direct-to-Consumer)

Also known as:

Traditional Chinese Medicine

Also known as:

Vitamin C

Also known as:

Zinc

Also known as: