Vegas Lawyer
Helping People Who
Were Hurt In Nevada

Dempsey, Roberts
& Smith, Ltd.

Vegas Lawyer
Nevada Legal Help

Slip & Fall
Medical Injury
Product Defect
Other Claims
Contact Us

Las Vegas Personal Injury Lawyer

Vegas Injury Law

Las Vegas Inury Lawyer

  • Colloidal Silver Products

  • Colloidal Silver Products

    Colloidal Silver Products
    May 14, 2004
    Consumer Advisory

    On this page

    Key Points
    1. What are colloidal silver products?
    2. For what health purose are colloidal silver products marketed? 3. Do colloidal silver products work?
    4. What are the risks of using these products? 5. Does the Government regulate dietary supplements containing colloidal silver? 6. What should people do who are considering or using colloidal silver? For More Information
    This fact sheet provides a general overview of colloidal silver products, discusses scientific research findings on their use for health purposes, and suggests additional sources of information.

    Key Points
    Colloidal silver products consist of tiny silver particles suspended in liquid. They are usually marketed as dietary supplements (see Question 1).

    Over-the-counter colloidal silver products are not considered by the U.S. Food and Drug Administration (FDA) to be generally recognized as safe and effective for diseases and conditions.

    The FDA has taken action against a number of colloidal silver companies (such as Web sites) for making drug-like claims about their products.

    Colloidal silver can cause serious side effects. One is argyria, a bluish-gray discoloration of the body. Argyria is not treatable or reversible.

    If you are considering using a colloidal silver product, talk with all your health care providers. Discussing its use with your health care team is important for your safety and helps each provider make sure that all aspects of your health care are working together. Top

    1. What are colloidal silver products? Silver is a metallic element that is mined as a precious metal. It has various industrial uses--for example, in jewelry, silverware, electronic equipment, dental fillings, photographic processing, and disinfecting water. People are commonly exposed to silver, usually in tiny amounts, through the environment (such as the air), drinking water, and food, and possibly their work or hobbies.1 Silver has no known biological function in living organisms.

    Silver has had some medicinal uses going back for centuries. However, more modern and less toxic drugs have eliminated most of those uses. A few prescription drugs containing silver are still available. For example, silver nitrate can be used to prevent an eye condition called conjunctivitis in newborn babies and to treat certain skin conditions, such as corns and warts. Another drug, silver sulfadizine, can be used to treat burns. These drugs are applied to the body (i.e., they are not taken internally), and they can have negative side effects.

    Colloidal silver products consist of tiny silver particles suspended in a liquid base. Sometimes other ingredients are added, such as proteins, coloring, etc. The products are usually taken by mouth (in which case the products are considered dietary supplements; see the text box below). Some other types are sprayed, applied to the skin, or injected into a vein.

    About Dietary Supplements

    Dietary supplements were defined in a law passed by Congress in 1994. A dietary supplement must meet all of the following conditions:

    It is a product (other than tobacco) intended to supplement the diet, which contains one or more of the following: vitamins; minerals; herbs or other botanicals; amino acids; or any combination of the above ingredients. It is intended to be taken in tablet, capsule, powder, softgel, gelcap, or liquid form. It is not represented for use as a conventional food or as a sole item of a meal or the diet. It is labeled as being a dietary supplement.

    2. For what health purposes are colloidal silver products marketed? Colloidal silver products are often marketed with various unproven health-related claims. Examples include that they benefit the immune system; kill disease-causing agents such as bacteria, viruses, and fungi; are an alternative to prescription antibiotics; or treat diseases such as cancer, HIV/AIDS, tuberculosis, syphilis, scarlet fever, shingles, herpes, pneumonia, and prostatitis (inflammation of the prostate).

    3. Do colloidal silver products work?
    Reviews in the scientific literature on colloidal silver products have concluded that2-5:

    Silver has no known function in the body.

    Silver is not an essential mineral supplement or a cure-all and should not be promoted as such.

    Claims that there can be a "deficiency" of silver in the body and that such a deficiency can lead to disease are unfounded.

    Claims made about the effectiveness of colloidal silver products for numerous diseases are unsupported scientifically.

    Colloidal silver products can have serious side effects (discussed further below).

    Laboratory analysis has shown that the amounts of silver in supplements vary greatly, which can pose risks to the consumer. Top

    4. What are the risks of using these products? Animal studies have shown that silver builds up in the tissues of the body. In humans, buildup of silver from colloidal silver can lead to a side effect called argyria. It causes a bluish-gray discoloration of the skin, other organs, deep tissues, nails, and gums. Argyria cannot be treated or reversed, and it is permanent. While it is not known how argyria occurs, it is thought that silver combines with protein, forming complexes that deposit in the skin and are processed by sunlight (as in traditional photography).6,7 Other side effects from using colloidal silver products may include neurologic problems (such as seizures), kidney damage, stomach distress, headaches, fatigue, and skin irritation. Colloidal silver may interfere with the body's absorption of the following drugs: penacillamine, quinolones, tetracyclines, and thyroxine.5

    5. Does the Government regulate dietary supplements containing colloidal silver? Yes, the Government regulates them, but differently than drugs. The Dietary Supplement Health and Education Act of 1994 places dietary supplements in a special category of foods. This category is regulated differently than other foods and than drugs. For example, manufacturers of dietary supplements, unlike manufacturers of drugs, do not have to prove their product's safety and effectiveness to the FDA before it is marketed. If the product is found to be unsafe after it is marketed, the FDA can take certain actions, such as removing it from the marketplace. The FDA issued a ruling in 1999 that no products containing colloidal silver are generally recognized as safe and effective. The FDA and the Federal Trade Commission (FTC) have sent warning letters to the operators of many Web sites that market colloidal silver with drug-like claims (i.e., that their product diagnoses, treats, cures, or prevents disease).

    6. What should people do who are considering or using colloidal silver? If you are considering or using a colloidal silver product, or any type of complementary and alternative medicine (CAM), talk with all your health care providers. Discussing its use is important for your safety and helps each provider make sure that all aspects of your health care are working together. This is especially important if you are pregnant, nursing a baby, or considering treating a child. You can also learn about FDA and FTC actions on misrepresentations for colloidal silver (see "For More Information" below).

    Conventional Medicine

    Conventional medicine is medicine as practiced by holders of M.D. (medical doctor) or D.O. (doctor of osteopathy) degrees and by their allied health professionals, such as nurses, physical therapists, and dietitians. Other terms for conventional medicine include allopathy; Western, mainstream, orthodox, and regular medicine; and biomedicine.

    Complementary and Alternative Medicine (CAM)

    Health care practices and products that are not presently considered to be part of conventional medicine are called CAM. Complementary medicine is used together with conventional medicine. Alternative medicine is used in place of conventional medicine. There is scientific evidence for the effectiveness of some CAM treatments. But for most, there are key questions yet to be answered through well-designed scientific studies, such as whether they are safe and work for the diseases or conditions for which they are used. The National Center for Complementary and Alternative Medicine (NCCAM), part of the National Institutes of Health (NIH), is the Federal Government's lead agency for scientific research on CAM.

    For More Information
    NCCAM Clearinghouse

    Toll-free in the U.S.: 1-888-644-6226
    International: 301-519-3153
    TTY (for deaf or hard-of-hearing callers): 1-866-464-3615

    NCCAM Web site:
    Address: NCCAM Clearinghouse, P.O. Box 7923, Gaithersburg, MD 20898-7923

    Fax: 1-866-464-3616
    Fax-on-Demand service: 1-888-644-6226

    U.S. Food and Drug Administration (FDA) Web site:
    Toll-free in the U.S.: 1-888-463-6332

    The FDA monitors--and regulates for safety--foods, medicines, medical devices, cosmetics, and radiation-emitting consumer products.

    Center for Food Safety and Applied Nutrition (CFSAN) CFSAN's Web site on dietary supplements is at Toll-free in the U.S.: 1-888-723-3366

    CFSAN oversees the safety and labeling of supplements, foods, and cosmetics. It has information on dietary supplements.

    Web site: Toll-free in the U.S.: 1-888-463-6332

    MedWatch is the FDA's safety information and adverse event reporting program. Consumers or providers may file a report if they have a serious problem that they suspect is associated with a dietary supplement.

    Federal Trade Commission (FTC)
    Web site:
    Toll-free in the U.S.: 1-877-382-4357

    The FTC works to prevent fraudulent, deceptive, and unfair business practices in the marketplace and to inform consumers so that they can spot, stop, and avoid these practices.

    CAM on PubMed
    Web site:

    CAM on PubMed, a database on the Web developed jointly by NCCAM and the National Library of Medicine, offers citations to (and in most cases, abstracts of) CAM articles in scientifically based journals. Some records link to the full text of the article.

    Agency for Toxic Substances and Disease Registry. ToxFAQs for Silver. Agency for Toxic Substances and Disease Registry Web site. Accessed at on March 23, 2004. Fung MC, Bowen DL. Silver products for medical indications: risk-benefit assessment. Journal of Toxicology. Clinical Toxicology. 1996;34(1):119-126. Gulbranson SH, Hud JA, Hansen RC. Argyria following the use of dietary supplements containing colloidal silver protein. Cutis. 2000;66(5):373-374. FDA bans colloidal silver products, cites lack of data. FDA Consumer. 1999;33(6). Accessed at on March 2, 2004. Natural Medicines Comprehensive Database. Colloidal silver. Natural Medicines Comprehensive Database Web site. Accessed at mono_id=779&brand_id= on March 23, 2004. White JM, Powell AM, Brady K, et al. Severe generalized argyria secondary to ingestion of colloidal silver protein. Clinical and Experimental Dermatology. 2003;28(3):254-256. Hori K, Martin TG, Rainey P, et al. Believe it or not--silver still poisons! Veterinary and Human Toxicology. 2002;44(5):291-292.

    This information came from an NCCAM online article.

    Index | Home

    Contact David Matheny, Esq. for a free consultation.

    (702) 388-1229

    Lawyer Search | Attorney Finder

    Search for more information on Vegas Law and Las Vegas Lawyers:


    Las Vegas Legal Help
    Nevada Law

    Vegas Lawyer
    Vegas Lawyers

    Index | Home

    Wrongful Death | Car Accident | Slip & Fall | Malpractice | Product Defect | Other Claims
    Find A Lawyer By State | Search For Attorneys By City | Get Legal Information | Contact Us

    520 South Fourth Street, Suite 360
    Las Vegas, Nevada 89101

    Las Vegas Lawyer - Las Vegas Attorney - Las Vegas Personal Injury Lawyer

    Neither the State Bar of Nevada nor any agency of the State Bar has certified any lawyer identified here as a specialist or as an expert.  Anyone considering a lawyer should independently investigate the lawyer's credentials and ability. This site is intended for Nevada residents and those with legal issues arising under the jurisdiction of the State of Nevada.  This site does not give legal advice or create an attorney-client relationship.  Laws are different in other states and localities, consult a local attorney.

    The information in this web site is provided for informational purposes only. The information does not constitute legal advice. The use of this site does not create an attorney-client relationship. Further communication with an attorney through the web site and e-mail may not be considered as confidential or privileged. Please contact our attorneys if you wish to discuss the contents of this web site. Any laws, rules or statutes giving any information, restrictions or deadlines, are always subject to change at any time - Contact a local attorney to obtain the current status of such information.

    In the series of Articles on this site, many government PSAs and other information are excerpted. All such materials are believed to be in the public domain. If any work is protected, contact the webmaster at any of the e-mail links and the material will be taken off the site immediately.

    If you experience unusual problems with this site or discover bad links, please email the webmaster. Thank you.

    Copyright: David Matheny, 2003-2005.