saw palmetto

[feelnfit]

i found a old bottle that i forgot i had. does anybody still use this since there is so much new stuff out now?

 

[Big Ed]

saw palmetto is a must!

 

[Jrflex10er]

actually I'd like to hear what everyone uses.......other than saw palmetto

 

[BigBoyJ]

Here's what I don't understand about saw palmetto. How can it bind to androgen receptors in the prostate to prevent prostate hypertrophy, but not bind to androgen receptors in muscle tissue? I vaguely remember an article a long time ago about the effects of saw palmetto and the possibility of it hindering gains, but I just can't remember much else about it. Personally, I don't take anything for androgen related sides. I've just never had a reason to so far. My head is still full of hair (when I don't shave it) and I can still pee. That's good enough for me.

 

[gooey]

heres some info...

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not fully understood. Some of the mecha-
nisms proposed include anti-inflammatory
activity,
2
blocked conversion of testosterone to
dihydrotestosterone (DHT),
3,4
and prostate
epithelial involution similar to effects noted
with the use of finasteride (Proscar).
5
Relief of Symptoms
Treatments for BPH can be evaluated by
their effect on symptoms such as diminished
urine stream, post-void dribbling, overflow
incontinence, and urinary retention, or by less
useful measures such as urine flow rate,
changes in prostate size, and residual volume.
In a Cochrane Review,investigators conducted
a meta-analysis of randomized controlled
studies comparing saw palmetto with placebo
or other drugs.
6
[Evidence level A: systematic
review of randomized controlled trials RCTs]
The review combined the results of 21 trials with
durations of four to 48 weeks. The 21 studies
included a total of 3,139 men with a mean age
of 65 years (range:40 to 88 years).According to
the International Prostate Symptom Scale,
these men had moderate symptoms, with an
average urologic score of 14.4 points out of a
possible 35 (moderate BPH symptoms range
from eight to 19).
6
In the 13 studies that
reported symptom scores, saw palmetto
improved symptom scores, individual symp-
toms, and flow measures more than placebo.
Patients and physicians were more likely to
report improvement in symptoms with saw
palmetto treatment than with placebo. In the
S
aw palmetto,also known as Serenoa
repens or Sabal serrulatum, is an
herb that is most commonly used
to treat problems related to benign
prostatic hyperplasia (BPH). The
medicinal element of saw palmetto is taken
from the partially dried ripe fruit of the
American dwarf palm tree, which is indige-
nous to the coastal regions of the southern
United States, from the Carolinas and Florida
to California.
BPH is a nearly universal result of the aging
process in men.As the prostate gland enlarges,
it can cause both obstructive and irritative
symptoms; however, the size of the prostate
gland is not predictive of the symptoms that
patients experience.
Saw palmetto is widely used in other coun-
tries; for example, it is used in 50 percent of
treatments for BPH in Italy and in 90 percent of
such treatments in Germany.
1
The active part
of the plant is the sterols and free fatty acids
found in the berry. The particular solvent used
in the extraction process affects the resulting
formulation of the product. The most widely
studied form of saw palmetto is Permixon,
which uses the solvent hexane; other formula-
tions have used ethanol, methanol, and liquid
carbon dioxide as solvents. Historically, saw
palmetto was administered with nettle root and
pumpkin seeds, and some modern formula-
tions include these elements.
It is unclear which components are the
most active, and the mechanism of action is
Saw palmetto is an herbal product used in the treatment of symptoms related to
benign prostatic hyperplasia. The active component is found in the fruit of the Amer-
ican dwarf palm tree. Studies have demonstrated the effectiveness of saw palmetto in
reducing symptoms associated with benign prostatic hyperplasia. Saw palmetto
appears to have efficacy similar to that of medications like finasteride, but it is better
tolerated and less expensive. There are no known drug interactions with saw pal-
metto, and reported side effects are minor and rare. No data on its long-term usage
are available. The herbal product also has been used to treat chronic prostatitis, but
currently there is no evidence of its efficacy. (Am Fam Physician 2003;67:1281-3. Copy-
right© 2003 American Academy of Family Physicians.)
Saw Palmetto for Prostate Disorders
ANDREA E. GORDON, M.D., and ALLEN F. SHAUGHNESSY, PHARM.D.
Harrisburg Family Practice Residency, Harrisburg, Pennsylvania
See page 1226 for
definitions of strength-
of-evidence levels.
COMPLEMENTARY AND
ALTERNATIVE MEDICINE
Page 2
12 studies that reported nocturia results, saw
palmetto reduced nocturia by 25 percent com-
pared with placebo.
In two studies, saw palmetto and finasteride
had similar positive effects on urinary symp-
tom scores and peak urine flow.Adverse effects
caused by saw palmetto were mild and infre-
quent and comparable to side effects from
placebo. Withdrawal rates among patients
receiving placebo,saw palmetto,and finasteride
were 7.1, 8.9, and 9.0 percent, respectively.
Results similar to those in the Cochrane
Review were produced by a more recent
review.
7
[Evidence level A: RCTs] Saw
palmetto has not been compared with surgical
approaches in the treatment of BPH. Saw pal-
metto is also widely used for treatment of
chronic prostatitis, although scientific evi-
dence of benefit is lacking.
Contraindications, Adverse Effects,
and Interactions
The primary side effect occurring in
humans is gastrointestinal distress, which is
mild and can be minimized by taking saw pal-
metto with food. Saw palmetto is believed to
be quite safe, although formal toxicology
studies have not been completed. One study
8
found no mutagenic or teratogenic effects in
rats and dogs that were fed saw palmetto in a
dosage of 2 g per kg daily for six months, and
this dosage was well tolerated. No clinically
relevant changes in laboratory parameters
have been found in human clinical trials.
9
There has been some concern that saw pal-
metto could mask prostate cancer by lowering
prostate-specific antigen (PSA) levels. How-
ever, a randomized study
10
of more than
1,000 patients did not demonstrate this effect
on PSA levels. The same study showed that
finasteride decreased PSA levels by 41 percent.
Dosage
Clinical studies have used a dosage of 160 mg
twice daily or 320 mg once daily of a lipophilic
extract containing 80 to 90 percent of the
volatile oil. A daily dosage of 480 mg was not
found to be any more effective in a six-month
study of dosages.
8
Teas are not considered to
be effective because they do not contain the
volatile oils. The whole berries can be used at
the recommended dosage of 1 to 2 g daily.
11
As
with most herbal medications, the recom-
mended dosage for saw palmetto may vary
because of the lack of standardization of such
products in the United States.
Herbal medication products that are com-
monly available for purchase may not be the
same as those used in clinical studies and,
therefore, may not produce the same results.
There are no known drug interactions with
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TABLE 1
Key Points About Saw Palmetto
Efficacy
Reducing symptoms of BPH: effective
Treatment of chronic prostatitis: evidence lacking
Adverse effects Mild gastrointestinal distress: infrequent
Not known to interfere with the diagnosis of prostate cancer
Interactions
No known drug interactions
Dosage
Varies; most studies have used 160 mg twice daily or 320 mg
once daily
Cost
$6 to $20 per month, depending on brand, for a dosage
of 160 mg twice daily
Bottom line
Safe herbal medicine; effective for treatment of symptoms
of BPH
BPH = benign prostatic hyperplasia.
The Authors
ANDREA E. GORDON, M.D., is on the faculty of the Harrisburg Family Practice Resi-
dency, Harrisburg, Pa. She received her medical degree from Jefferson Medical College
in Philadelphia. Dr. Gordon completed a family practice residency program at the Uni-
versity of Connecticut, Hartford, and a fellowship in family practice faculty develop-
ment at St. Margaret Memorial Hospital, Pittsburgh, Pa. She is currently enrolled in an
integrative medicine fellowship at the University of Arizona, Tucson.
ALLEN F. SHAUGHNESSY, PHARM.D., is director of research and associate director of
the Harrisburg Family Practice Residency. He completed his doctorate and fellowship
training at the Medical University of South Carolina, Charleston.
Address correspondence to Andrea E. Gordon, M.D., Harrisburg Family Practice Resi-
dency, 2501 N. Third St., Harrisburg, Pa., 17110-2098 (e-mail: agordon@pinnacle
health.org). Reprints are not available from the authors.
Page 3
saw palmetto. The cost for typical saw pal-
metto products ranges from $6 to $20 per
month at a dosage of 160 mg twice daily.
Final Comment
Saw palmetto is an effective treatment for
the symptoms of BPH. It appears to be as
effective as finasteride and is better tolerated,
less expensive, and less likely to decrease PSA
levels. No research has evaluated the effect of
saw palmetto on long-term outcomes in
patients with BPH.Table 1 reviews the efficacy,
safety, tolerability, and cost of saw palmetto.
The authors indicates that they do not have any con-
flicts of interest. Source of funding: none reported.
REFERENCES
1. Di Silverio F, D’Eramo G, Lubrano C, Flammia GP,
Sciarra A, Palma E, et al. Evidence that Serenoa
repens extract displays an antiestrogenic activity in
prostatic tissue of benign prostatic hypertrophy
patients. Eur Urol 1992;21:309-14.
2. Lowe FC, Ku JC. Phytotherapy in treatment of
benign prostatic hyperplasia: a critical review. Urol-
ogy 1996;48:12-20.
3. Briley M, Carilla E, Roger A. Inhibitory effect of Per-
mixon on testosterone 5a-reductase activity of the
rat ventral prostate. Br J Pharmacol 1984;83
(suppl):401P.
4. Marks LS, Hess DL, Dorey FJ, Macairan ML, Cruz
Santos PB, Tyler VE. Tissue effects of saw palmetto
and finasteride: use of biopsy cores for in situ
quantification of prostatic androgens. Urology
2001;57:999-1005.
5. Marks, LS, Partin AW, Epstein JI, Tyler VE, Simon I,
Macairan ML, et al. Effects of a saw palmetto
herbal blend in men with symptomatic benign pro-
static hyperplasia. J Urol 2000;163:1451-6.
6. Wilt T, Ishani A, MacDonald R. Serenoa repens for
benign prostatic hyperplasia. Cochrane Database
Syst Rev 2002;3:CD001423.
7. Gerber GS, Kuznetsov D, Johnson BC, Burstein JD.
Randomized, double-blind, placebo-controlled trial
of saw palmetto in men with lower urinary tract
symptoms. Urology 2001;58:960-4.
8. Small JK, Bombardelli E, Morazzoni P. Serenoa
repens (Bartram). Fitoterapia 1997;68:99–113.
9. Plosker GL, Brogden RN. Serenoa repens (Per-
mixon). A review of its pharmacology and thera-
peutic efficacy in benign prostatic hyperplasia.
Drugs Aging 1996;9:379–95.
10. Carraro JC, Raynaud JP, Koch G, Chisholm GD, Di
Silverio F, Teillac P, et al. Comparison of phytother-
apy (Permixon) with finasteride in the treatment of
benign prostate hyperplasia: a randomized interna-
tional study of 1,098 patients. Prostate 1996;29:
231–40.
11. Saw palmetto monograph. The Natural Medicines
Comprehensive Database. www.naturaldatabase.
com. Accessed December, 2002.
Saw Palmetto
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