Homeopathy

[tarak]

Homeopathy-a system of medicine which attempts to stimulate the body to recover itself. It has been disproved by the mainstream science about what homeopaths believe as "memory of water" to explain continuous dilution about how something can continue to act even after all of its molecules have disappeared.So what is the basis of homepathic placebo ???Comments pl.

[UncleAl]

What is the basis of any placebo effect?

http://www.mazepath.com/uncleal/crap.htm

[Biochemist]

Originally Posted by UncleAl

What is the basis of any placebo effect?

Agreed

Succinct as always, UA.

It is worth noting that some portions of homeopathy are not unfounded. But the feces:value ratio in the practice area is high.

[TeleMad]

I've seen an ad on TV for a homeopathic cold medicine (can't remember the brand) that claims to reduce the length of time you have cold symptoms by half, or something like that. How can they legally advertise that?

[Biochemist]

Originally Posted by TeleMad

I've seen an ad on TV for a homeopathic cold medicine (can't remember the brand) that claims to reduce the length of time you have cold symptoms by half, or something like that. How can they legally advertise that?

Interesting question. I think that if the product is not regulated by the FDA (that is, if it is a "natural" product, like a vitamin) the responsibiltiy for enforcement of any claim is pretty vague, and usually specific to the state. Also, someone has to care.

Usually the claim will be something like "may reduce and shorten duration of cold symptoms by up to 50%" or some similar non-commitment. In this case, they didn't really commit to anything.

Usually no jurisdiction (like the county DA) really cares unless someone gets hurt.

[TeleMad]

I just did a quick Google and found Cold-Eze, which is billed as a homeopathic cold remedy. It claims to be clinically proven to reduce the duration of a cold. It's only active ingredient is zinc.

But if zinc - listed as the active ingredient - is thought to help in reducing the duration of a cold (I don't know if it does or not), how could the product be truly homeopathic?

[Biochemist]

Originally Posted by TeleMad

...It claims to be clinically proven to reduce the duration of a cold. It's only active ingredient is zinc.

But if zinc - listed as the active ingredient - is thought to help in reducing the duration of a cold (I don't know if it does or not), how could the product be truly homeopathic?

Zinc actually is interesting, in that it is reported anecdotally to improve cold recovery and also to reduce the severity and duration of sore throats. Zinc is a non-controlled mineral I(like iron or calcium), hence it is one of those products that are not evaluated or controlled by the FDA.

I am not sure if there are any criteria that make a treatment "homeopathic" other than the perception of "natural".

I am not aware of any really good studies to confirm the zinc effect (in spite of the claim) although there could be some. There are similar claims for the use of ice during the prodrome for a cold sore to reduce incidence and duration.

I both of these cases, the study is design is tough because the researcher can't crossover the population. In the case of ice therapy, the researcher can't even blind the users. Placebo effects are rampant.

Also, it is really hard to get investment for the study because there is no one that has an economic gain out of the study.

Researchers do altruistically run studies with no economic gain all of the time, but colds are tough to study becasue you have to get a more-or-less synchronized population for a disease that is going to self resolve on a variable course anyway. It is hard for a researcher to get motivated to study colds.

[TeleMad]

Originally Posted by Biochemist

Zinc is a non-controlled mineral I(like iron or calcium), hence it is one of those products that are not evaluated or controlled by the FDA.

Off the top of my head, I thought zinc was "controlled" (the zinc pills you buy, unlike vitamin C pills, have to be under x milligrams) because too much zinc causes severe problems.

Biochemist: I am not sure if there are any criteria that make a treatment "homeopathic" other than the perception of "natural".

I thought the key idea of homeopathic was what might be called "absence by means of absolute dilution": what was mentioned in the opening post.

[Biochemist]

Originally Posted by TeleMad

Off the top of my head, I thought zinc was "controlled" (the zinc pills you buy, unlike vitamin C pills, have to be under x milligrams) because too much zinc causes severe problems.

Well, I think you are technically correct. But when the quantity of the constituent is below a certain level, the control is different (i.e., less). Over-the-counter zinc products are not regarded as dangerous, so they are essentially uncontrolled. Most vitamins are uncontrolled as well. The fat soluble vitamins are controlled more tightly (A,D,E and K) because the risk of toxic accumulation is higher.

I thought the key idea of homeopathic was what might be called "absence by means of absolute dilution": what was mentioned in the opening post.

I really have absolutely no idea what that means. Maybe someone could illuminate me.

[C1ay]

Here's some excerpts from the FDA website:

Overview of Dietary Supplements

What is a dietary supplement?

Congress defined the term "dietary supplement" in the Dietary Supplement Health and Education Act (DSHEA) of 1994. A dietary supplement is a product taken by mouth that contains a "dietary ingredient" intended to supplement the diet. The "dietary ingredients" in these products may include: vitamins, minerals, herbs or other botanicals, amino acids, and substances such as enzymes, organ tissues, glandulars, and metabolites. Dietary supplements can also be extracts or concentrates, and may be found in many forms such as tablets, capsules, softgels, gelcaps, liquids, or powders. They can also be in other forms, such as a bar, but if they are, information on their label must not represent the product as a conventional food or a sole item of a meal or diet. Whatever their form may be, DSHEA places dietary supplements in a special category under the general umbrella of "foods," not drugs, and requires that every supplement be labeled a dietary supplement.

What is FDA's role in regulating dietary supplements versus the manufacturer's responsibility for marketing them?

In October 1994, the Dietary Supplement Health and Education Act (DSHEA) was signed into law by President Clinton. Before this time, dietary supplements were subject to the same regulatory requirements as were other foods. This new law, which amended the Federal Food, Drug, and Cosmetic Act, created a new regulatory framework for the safety and labeling of dietary supplements.

Under DSHEA, a firm is responsible for determining that the dietary supplements it manufactures or distributes are safe and that any representations or claims made about them are substantiated by adequate evidence to show that they are not false or misleading. This means that dietary supplements do not need approval from FDA before they are marketed. Except in the case of a new dietary ingredient, where pre-market review for safety data and other information is required by law, a firm does not have to provide FDA with the evidence it relies on to substantiate safety or effectiveness before or after it markets its products.

Also, manufacturers do not need to register themselves nor their dietary supplement products with FDA before producing or selling them. Currently, there are no FDA regulations that are specific to dietary supplements that establish a minimum standard of practice for manufacturing dietary supplements. However, FDA intends to issue regulations on good manufacturing practices that will focus on practices that ensure the identity, purity, quality, strength and composition of dietary supplements. At present, the manufacturer is responsible for establishing its own manufacturing practice guidelines to ensure that the dietary supplements it produces are safe and contain the ingredients listed on the label.

Who has the responsibility for ensuring that a dietary supplement is safe?

By law (DSHEA), the manufacturer is responsible for ensuring that its dietary supplement products are safe before they are marketed. Unlike drug products that must be proven safe and effective for their intended use before marketing, there are no provisions in the law for FDA to "approve" dietary supplements for safety or effectiveness before they reach the consumer. Also unlike drug products, manufacturers and distributors of dietary supplements are not currently required by law to record, investigate or forward to FDA any reports they receive of injuries or illnesses that may be related to the use of their products. Under DSHEA, once the product is marketed, FDA has the responsibility for showing that a dietary supplement is "unsafe," before it can take action to restrict the product's use or removal from the marketplace.

Do manufacturers or distributors of dietary supplements have to tell FDA or consumers what evidence they have about their product's safety or what evidence they have to back up the claims they are making for them?

No, except for rules described above that govern "new dietary ingredients," there is no provision under any law or regulation that FDA enforces that requires a firm to disclose to FDA or consumers the information they have about the safety or purported benefits of their dietary supplement products. Likewise, there is no prohibition against them making this information available either to FDA or to their customers. It is up to each firm to set its own policy on disclosure of such information. For more information on claims that can be made for dietary supplements, see (http://www.cfsan.fda.gov/~dms/hclaims.html).

HTH,