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Herbal supplements–unproven, unregulated, unsafe

One of the more ironic memes on the internet is how pharmaceutical companies make so much money (and they do), with the false conclusion that somehow all that money means that they’re not really interested in providing drugs that are safe and efficacious. Then, those same memes will claim that “natural supplements” are healthier and better, while they ignore the profit motive of supplement pushers (henceforth called Big Herbal).

The National Center for Complementary and Alternative Medicine (NCCAM), an abomination that pushes fraudulent science, reported that in 2007, US adults spent $33.9 billion on visits to complementary and alternative medicine (CAM) providers and for purchases of CAM products, classes, and materials. About $14.8 billion of that spending was on non-vitamin, non-mineral, natural products, such as fish oil, glucosamine (no evidence of effectiveness), and Echinacea (no evidence of effectiveness). What is surprising is that this $14.8 billion is about ⅓ of what is spent on prescription drugs. Finally, about $4.4 billion was spent on herbal supplements, which are supplements that use botanical products based on some historical or current belief that the products have some ability to treat some disease or symptom. Of course, sometimes these beliefs are myths, or even errors, like when a Swiss CAM products company misunderstood someone and believed that Native Americans used Echninacea for treating colds. They didn’t.Read More »Herbal supplements–unproven, unregulated, unsafe

Echinacea and the common cold–Myth vs. Science

It’s getting close to winter once again, so people always recommend their various lotions and potions to either prevent the common cold or, at least, to reduce the course of the disease. Alternative medicine’s favorite disease to treat is the common cold, mainly because it’s an easy disease to handle without too many serious problems. Also, from the patient’s perspective, the length and seriousness of the cold is usually very subjective, since the patient has a difficult time making an accurate determination when the cold started or ended, and making a quantitative assessment of the seriousness of the disease. Moreover,  confirmation bias is usually the reason one hears that something worked for the cold–the person who reports some product works forgets all the times it doesn’t. Or completely misjudges the actual effects of any treatment.

The list of products that you might run across in your local pharmacy that claim to have an effect on the common cold are many. Zinc, oscillococcinum, garlic, and vitamin C. I wrote about these products last winter, and they mostly don’t work. The strangest cold remedy you might find is oscillococcinum, which is a homeopathic preparation derived from duck liver and heart, diluted to 200C, or 200 1:100 dilutions.  In other words, in a liter of water there are precisely no molecules of duck guts. And there isn’t any logical explanation of a possible mechanism that would allow one to conclude that duck offal has an effect on cold viruses. Though Oscillococcinum is supposed to be used for flus, many use it for colds, but it doesn’t matter, why would a diluted potion of duck guts cure any virus? Well, Cochrane Reviews concluded that ”current evidence does not support a preventative effect of Oscillococcinum-like homeopathic medicines in influenza and influenza-like syndromes.Read More »Echinacea and the common cold–Myth vs. Science

Preventing and treating the common cold

It’s cold season, so everyone tries various lotions and potions to either prevent the common cold or, at least, to reduce the course of the disease.  Alternative medicine’s favorite disease to treat is the common cold, mainly because it’s an easy disease with not too many consequences.  Also, it’s very subjective, since the patient has a difficult time making an accurate determination of the length and severity of the attack.  Confirmation bias is usually the reason one hears that something works for the cold.  They forget all the times it doesn’t.  Or completely misjudge the actual effects of any treatment.Read More »Preventing and treating the common cold