Guest guest Posted October 18, 2004 Report Share Posted October 18, 2004 The best reference I've found on this matter, as well as pharmacology of Chinese herbs generally, is " Chinese Materia Medica: Chemistry, Pharmacology and Applications " by You-Ping Zhu. Of all the Exterior-releasing herbs, Bai Zhi is the only one I found that mentions photosensitivity reaction. Du Huo also contains xanthotoxin and bergapten and has the same photosensitivity problems as Bai Zhi. I've personally never had a problem with either of the above, but then also I tend to recommend use of these two herbs only for short periods of time. If Dampness problems persist, such as Wind-Damp-Bi, it is often because of dietary abuses, giving these herbs for long periods is not the best way to deal with this problem. Western herbalist friends of mine (many of whom are in Colorado at high altitude with lots of sun) who use an herb called cow parsnip (Heracleum lanatum or H. sphondylium) have frequently commented on photosensitivity problems with this herb. Heracleum is one of the genera that can be used as a type of " Du Huo " . ---Roger Wicke, PhD, TCM Clinical Herbalist contact: www.rmhiherbal.org/contact/ Rocky Mountain Herbal Institute, Hot Springs, Montana USA Clinical herbology training programs - www.rmhiherbal.org > < >sunlight > >In a message dated 10/17/2004 1:07:00 PM Pacific Standard Time, > writes: > > Hi group, > > I wonder if anyone has noticed a relationship between sunlight > sensitivity while on exterior releasing herbs? > > TIA, > > Fernando > Hi Fernando, > I do know that some Release Exterior herbs, such as Bai Zhi, contain > furanocoumarins, xanthotoxin, and bergapten which are natural >photosensitizers. I do > not think this that this is true of all exterior releasing herbs. > -Anne > > ---Roger Wicke, PhD, TCM Clinical Herbalist contact: www.rmhiherbal.org/contact/ Rocky Mountain Herbal Institute, Hot Springs, Montana USA Clinical herbology training programs - www.rmhiherbal.org Quote Link to comment Share on other sites More sharing options...
Guest guest Posted October 19, 2004 Report Share Posted October 19, 2004 Roger, Thanks for the input. Although the rx in question did not include Du Huo, I will consider it next time it's called for. Fernando Bernall , rw2@r... wrote: > The best reference I've found on this matter, as well as pharmacology of Chinese herbs generally, is " Chinese Materia Medica: Chemistry, Pharmacology and Applications " by You-Ping Zhu. > > Of all the Exterior-releasing herbs, Bai Zhi is the only one I found that mentions photosensitivity reaction. > > Du Huo also contains xanthotoxin and bergapten and has the same photosensitivity problems as Bai Zhi. > > I've personally never had a problem with either of the above, but then also I tend to recommend use of these two herbs only for short periods of time. If Dampness problems persist, such as Wind-Damp-Bi, it is often because of dietary abuses, giving these herbs for long periods is not the best way to deal with this problem. > > Western herbalist friends of mine (many of whom are in Colorado at high altitude with lots of sun) who use an herb called cow parsnip (Heracleum lanatum or H. sphondylium) have frequently commented on photosensitivity problems with this herb. Heracleum is one of the genera that can be used as a type of " Du Huo " . > > ---Roger Wicke, PhD, TCM Clinical Herbalist > contact: www.rmhiherbal.org/contact/ > Rocky Mountain Herbal Institute, Hot Springs, Montana USA > Clinical herbology training programs - www.rmhiherbal.org > > > > > > >sunlight > > > >In a message dated 10/17/2004 1:07:00 PM Pacific Standard Time, > > writes: > > > > Hi group, > > > > I wonder if anyone has noticed a relationship between sunlight > > sensitivity while on exterior releasing herbs? > > > > TIA, > > > > Fernando > > Hi Fernando, > > I do know that some Release Exterior herbs, such as Bai Zhi, contain > > furanocoumarins, xanthotoxin, and bergapten which are natural > >photosensitizers. I do > > not think this that this is true of all exterior releasing herbs. > > -Anne > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted October 19, 2004 Report Share Posted October 19, 2004 Interesting to note that both Bai Zhi and Du Huo are angelicas. rw2 wrote: The best reference I've found on this matter, as well as pharmacology of Chinese herbs generally, is " Chinese Materia Medica: Chemistry, Pharmacology and Applications " by You-Ping Zhu. Of all the Exterior-releasing herbs, Bai Zhi is the only one I found that mentions photosensitivity reaction. Du Huo also contains xanthotoxin and bergapten and has the same photosensitivity problems as Bai Zhi. I've personally never had a problem with either of the above, but then also I tend to recommend use of these two herbs only for short periods of time. If Dampness problems persist, such as Wind-Damp-Bi, it is often because of dietary abuses, giving these herbs for long periods is not the best way to deal with this problem. Western herbalist friends of mine (many of whom are in Colorado at high altitude with lots of sun) who use an herb called cow parsnip (Heracleum lanatum or H. sphondylium) have frequently commented on photosensitivity problems with this herb. Heracleum is one of the genera that can be used as a type of " Du Huo " . ---Roger Wicke, PhD, TCM Clinical Herbalist contact: www.rmhiherbal.org/contact/ Rocky Mountain Herbal Institute, Hot Springs, Montana USA Clinical herbology training programs - www.rmhiherbal.org > < >sunlight > >In a message dated 10/17/2004 1:07:00 PM Pacific Standard Time, > writes: > > Hi group, > > I wonder if anyone has noticed a relationship between sunlight > sensitivity while on exterior releasing herbs? > > TIA, > > Fernando > Hi Fernando, > I do know that some Release Exterior herbs, such as Bai Zhi, contain > furanocoumarins, xanthotoxin, and bergapten which are natural >photosensitizers. I do > not think this that this is true of all exterior releasing herbs. > -Anne > > ---Roger Wicke, PhD, TCM Clinical Herbalist contact: www.rmhiherbal.org/contact/ Rocky Mountain Herbal Institute, Hot Springs, Montana USA Clinical herbology training programs - www.rmhiherbal.org Chinese Herbal Medicine offers various professional services, including board approved continuing education classes, an annual conference and a free discussion forum in Chinese Herbal Medicine. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted October 20, 2004 Report Share Posted October 20, 2004 Heracleum/cow parsnip was one of the plants we harvested on my Taos workshop/field trip, and I was surprised to find it listed as one of the plants in the Zhong yao da ci dian for du huo. I'd used it for years in the past without knowing that it was one of the plants that was used as du huo. On Oct 19, 2004, at 11:11 AM, wrote: > > Western herbalist friends of mine (many of whom are in Colorado at > high altitude with lots of sun) who use an herb called cow parsnip > (Heracleum lanatum or H. sphondylium) have frequently commented on > photosensitivity problems with this herb. Heracleum is one of the > genera that can be used as a type of " Du Huo " . > > Quote Link to comment Share on other sites More sharing options...
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