xi xin

[Guest guest]

Thanks Todd. Please update us when Andy Ellis finishes his studies. The

quantity involved is probably diminimous if it is there, and possibly

only in the leaves as with the Canadian species. Jim Duke told me that

the lack of the compound from his database only means that it has not yet

been studdied.

 

Convincing the FDA may be another issue.

 

Karen Vaughan

CreationsGarden

***************************************

Email advice is not a substitute for medical treatment.

" Do not seek to follow in the footsteps of men of old; seek what they

sought. " --Matsuo Basho

 

 

______________

YOU'RE PAYING TOO MUCH FOR THE INTERNET!

Juno now offers FREE Internet Access!

Try it today - there's no risk! For your FREE software, visit:

http://dl.www.juno.com/get/tagj.

[Guest guest]

wrote:

>

> Are people still using xi xin or xi xin containing products internally?

 

Thanks for that, Todd.

 

Can you list any other herbs that may lead to a seizure of files and

pharmacy, i.e. Guang Fang Ji, etc?

 

--

Al Stone L.Ac.

<AlStone

http://www.BeyondWellBeing.com

 

Pain is inevitable, suffering is optional.

[Guest guest]

, <@i...>

wrote:

> Are people still using xi xin or xi xin containing products

internally?

> This herb has been banned by the FDA for at least a year now. It

is only

> legal for sale if toxicity tests show undetectable levels of

aristolochic

> acid in the raw product

 

 

Does this go for Mu Tong and Han Fang Ji as well? I've been wondering

what's happening on the AA issue. Where do we find this information?

 

 

Robert Hayden

[Guest guest]

, " kampo36 <kampo36> "

<kampo36> wrote:

 

>

> Does this go for Mu Tong and Han Fang Ji as well? I've been wondering

> what's happening on the AA issue. Where do we find this information?

 

mu tong, wei ling xian, xi xin, han fang ji, guang fang ji come to mind.

springwind can tell you as can the AAOM, I think.

 

BTW, Andy has been unable to find any stephania tetrandra, true han fang ji,

for awhile too.

[Guest guest]

, " <@i...> "

<@i...> wrote:

> >

> mu tong, wei ling xian, xi xin, han fang ji, guang fang ji come to

mind.

> springwind can tell you as can the AAOM, I think.

>

> BTW, Andy has been unable to find any stephania tetrandra, true han

fang ji,

> for awhile too.

 

Thanks. What are people substituting for these herbs in writing

prescriptions? For example mu tong in Longdan Xie Gan Tang or Dao

Chi San. My teacher had suggested Tong cao but it doesn't look to

have the same heart-clearing effects for something like Dao Chi san.

Deng Xin Cao, maybe?

 

Robert Hayden

[Guest guest]

I’ve used deng xin cao w/ satisfactory results. Otherwise, I reach for tong cao. In Xin yi san I’ve tried lu lu tong.

 

what should we use instead of xi xin. There is no herb like it that comes to mind.

 

Cara

 

Thanks. What are people substituting for these herbs in writing

prescriptions? For example mu tong in Longdan Xie Gan Tang or Dao

Chi San. My teacher had suggested Tong cao but it doesn't look to

have the same heart-clearing effects for something like Dao Chi san.

Deng Xin Cao, maybe?

 

Robert Hayden

 

 

 

[Guest guest]

Eric,

 

Interesting that in Western herbal medicine we only use the roots. In

fact, I was taught that the leaves cause nausea and vomiting,

although I have tried them and not had that reaction, several people

have told they have.

 

Thomas

 

, " Eric Brand "

<smilinglotus wrote:

>

> I wrote a little piece on xi xin and its legal status on my blog at

> bluepoppy.com

>

> The situation with xi xin is quite interesting. I was recently

> talking to some Taiwanese granule factory QC experts and some

materia

> medica scholars in Hong Kong to learn more. Apparently in ancient

> times, only the root of xi xin was used. Later on, the whole plant

> became commonly used, but now people have returned to using only the

> root, since it lacks aristolochic acid.

>

> Check it out if you are interested in such things:

> http://www.bluepoppy.com/blog/blogs/blog1.php

>

> Eric

>

[Guest guest]

Aristolochic acid (AA) is found in the aerial portions of xi xin, but not in the

root. In the official Chinese Pharmacopoeia, the whole plant is used as xi xin,

but there is a trend to return to using only the root, particularly in Taiwan

and Hong Kong. Shang Han Lun scholars say that the root alone was used in

ancient times, and only in later centuries did the whole herb become used. Now,

we are returning to using only the root because it lacks AA. Even the Chinese

name xi xin implies the root, which is very thin (xi) and acrid (xin).

 

At present, granule manufacturers in Taiwan only use the root of xi xin. It can

be difficult to obtain the raw material because the root tissue is commonly

mixed with aerial plant tissue on the bulk herb wholesale market; such product

doesn't test clean of AA, so any given granule company may have shortages of raw

material supply from time to time. Despite the fact that AA-free product is

made in granule form on the global market, we cannot buy it in the US because

vendors typically do not carry it for fear of hassles with the FDA (shipments

can be detained and the costs exceed the value of any potential profit). As

Z'ev so helpfully pointed out, the raw herb is available through Spring Wind.

 

It is true that the risk of AA-toxicity with xi xin is low, but blanket bans on

AA-containing medicinals make xi xin otherwise unavailable, and the general

consensus is that AA-free product is safer anyway, particularly since the

unprocessed, traditional product

can be obtained in a form that lacks AA.

 

You can read more about the xi xin situation on my blog at Blue Poppy, at:

 

http://www.bluepoppy.com/blog/blogs/blog1.php/2009/02/25/xi-xin-and-aristolochic\

-acid

 

and

 

http://www.bluepoppy.com/blog/blogs/blog1.php/2009/05/16/interesting-data-on-ari\

stolochic-acid-an

 

Eric Brand