Xanthoparmelia Scabrosa lichen information
and safety by
Ray Sahelian, M.D.,
author of Natural Sex Boosters
Medical research regarding xanthoparmelia scabrosa is difficult to find.
It is a lichen found
throughout the world including China, Hong Kong, Australia, and South America. Xanthoparmelia has been promoted as an aphrodisiac.
At this point I am not in a position to recommend the use of xanthoparmelia
scabrosa as a sexual herb
dysfunction remedy until more is known regarding its alleged
properties or potential toxicity. There is yet no scientific study that indicates
this lichen has aphrodisiac properties.
A Medline search in 2013 did not reveal any human studies
with this lichen. The last annotation is the research paper published in 2003
What's in xanthoparmelia lichen?
A number of chemicals are found in
xanthoparmelia scabrosa including epipolythiopiperazinediones. Xanthoparmelia in bulk powder form is a brownish color, and
the taste is not bitter.
Passion Rx for men and women
Passion Rx is one of the bestselling supplements in the USA for the
purposes of sexual enhancement
Passion Rx provides results that are often seen within three to five
continue to improve over several days of use. Our feedback
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Click Passion Rx to purchase or to see additional sexual
Passion Rx supports and enhances healthy:
Passion Rx is not a precise
Viagra alternative in the sense that it
does not work exclusively as a phosphodiesterase 5 inhibitor. Rather, the dozens
of compounds in this herbal blend have an influence on a number of natural
chemical processes in the body and brain that influence healthy sexuality.
Dr. Ray Sahelian, M.D, author of Natural Sex Boosters, has discovered a
combination of potent herbal extracts from the Amazon jungle, India, China, Malaysia, and Africa,
that support healthy desire and performance, as well as
to simply enhance sexual pleasure. Passion Rx provides a
natural solution for those looking for an alternative to synthetic drugs.
The potent herbal extracts in Passion Rx include
coleus forskohlii, dmae, horny goat weed,
muira puama, passion flower,
pfaffia paniculata, rhodiola,
Another version of Passion Rx has
Passion Rx does not have
xanthoparmelia scabrosa product or extract.
How does Xanthoparmelia work?
I have not come across any studies that indicate how (or if)
xanthoparmelia scabrosa works
in helping with erections or sex organ engorgement or any other aspect of
I have only come across one study regarding xanthoparmelia scabrosa (see below)
and it concerns me since there may be toxins in this lichen, but at the same
time these toxins are able to kill
cancer cells. So, not much
can be said for sure till we have at least a couple of more studies.
Evidence that the lichen-derived scabrosin esters target mitochondrial ATP
synthase in P388D1 cells.
Australian National University,
Canberra, ACT, Australia.
Toxicol Appl Pharmacol. 2003.
Scabrosin esters (SEs), which have been recently isolated from the lichen
Xanthoparmelia scabrosa, belong to the epipolythiodioxopiperazine (ETP) class of
secondary metabolites characterized by possession of a reactive disulfide bond.
Colony forming assays show that these toxins are active against human tumor cell
lines at nanomolar concentrations. ETP toxins have been shown to
inhibit a variety of enzymes via interaction with sensitive cysteine residues.
Here we show that the typical scabrosin ester acetate butyrate induces early
mitochondrial membrane hyperpolarization accompanied
by apoptotic cell death. The toxin lowers ATP in intact cells and inhibits the
rate of ATP synthesis in permeabilzed cells. Comparison with the effects of the
known ATP synthase inhibitor oligomycin B is consistent with ATP synthase as an
early target in scabrosin ester-induced cell death.
Press release - Toxic Herb Alert - Xanthoparmelia scabrosa
Esters may be Unsafe
LANSING, MI -- The
herb Xanthoparmelia scabrosa, found in several male sexual enhancement
products sold as Viagra alternatives targeted to health food stores and
marketed on the Internet, has been shown to contain a toxic ester. Jim Lewis, president of National Nutritional Foods Association-Midwest
Region (NNFA-MW) is calling on all dietary supplement suppliers and natural
products retailers to investigate the products in their inventories that may
contain this herb, and to seek legal advice to
determine if they should continue to sell these products. "As the market for male sexual health supplements continues its
popularity among consumers, it is imperative to police ourselves and ensure
that safe products are offered,ˇ¨ Lewis stated. ˇResearch on the herb Xanthoparmelia scabrosa has clearly demonstrated toxicity in specific low
doses. To prevent another ephedra fiasco, it makes sense to respond
accordingly to the science when that research demonstrates possible harm or
According to Lewis, the Federal Drug Administration (FDA) and Federal Trade
Commission (FTC) know this herb is toxic. Xanthoparmelia scabrosa has been
researched since 1978, with additional discoveries on its potent cytotoxic
properties first revealed in 1996. Australian National University¦s
department of chemistry and its John Curtin School of Medical Research
published articles on the cytotoxic activity of the esters.
It does not appear at this time that xanthoparmelia is an appropriate herb
for healthy sexuality.
of interest and other pages on this website
herbs for health and medical
Enhance Sex Drive with
natural supplements. Zallouh
is an herb from the country of Lebanon.
Graviola is a tree in the
Mangosteen is a fruit
Saw palmetto also has beta
sitosterol which is a
Pygeum is often used in
combination with saw palmetto.
Impotence has many
Curcumin is an extract
5-htp has a serotonin effect.
Coq10 is a good supplement
to take for those who are taking stating drugs.
Nattokinase is an
enzyme for thrombus dissolution.
Erection improvement is
possible with herbs.
Ahcc is an immune extract from mushroom.
Serrapeptase is an enzyme.
enhancers are available.
is quite easy to do with natural
Q. I'm having a problem with erectile dysfunction and am trying to find a better
solution than Viagra or like products which have side effects. I have found a
product called Zyrexin which seems to help a lot!!
Do you know Zyrexin and if so, is your product similar or as effective. And,
does Physician Formulas ship products to Canada?
A. We are not familiar with Zyrexin, but an internet
search reveals the ingredients to be xanthoparmelia scabrosa, cnidium, yohimbe,
horny goat weed. These are good herbs for sexual function and are also found in
Passion Rx. The one problem we see with the Zyrexin web site is they say that
this product has no side effects. We find this difficult to believe since
yohimbe, found in Zyrexin, can have side effects. So, we are not sure what to
make of this.
I just tried Zyrexin and had a bad experience. My bones were jumpy and felt
uncomfortable. They also gave me a pill with Butea Suprera and saw palmetto
which gave me the same feeling even with a little. How is Passion rx product
different? I'm 51 and healthy, but the Zyrexin took me for a loop. If I try
Passion Rx as stated (half per day, every other day, should I be OK?
I do take medication for high cholesterol and Nexium for indigestion.
A. it is impossible to predict each person's reaction
to a particular supplement. Some people are very sensitive, others can take 5
times the amount and not feel anything. if you try Passion rx with yohimbe,
start with a third of a capsule just to see how you react before
making dosage changes up or down, and as long as your doctor approves.