Treatments
For Erectile Dysfunction
Most physicians suggest that Impotence
Treatments proceed from least to most invasive. For some men,
making a few healthy lifestyle changes may solve the
problem.
Quitting smoking, losing excess weight, and
increasing physical activity may help some men regain sexual
function.
Cutting back on any drugs with harmful side
effects is considered next. For example, drugs for high blood
pressure work in different ways. If you think a particular drug
is causing problems with erection, tell your doctor and ask
whether you can try a different class of blood pressure
medicine.
Psychotherapy and behavior modifications in
selected patients are considered next if indicated, followed by
oral or locally injected drugs, vacuum devices, and surgically
implanted devices. In rare cases, surgery involving veins or
arteries may be considered.
Psychotherapy
Experts often treat psychologically based impotence using
techniques that decrease the anxiety associated with
intercourse. The patient's partner can help with the
techniques, which include gradual development of intimacy and
stimulation. Such techniques also can help relieve anxiety when
ED from physical causes is being treated.
Drug Therapy
Drugs for treating ED can be taken orally, injected directly
into the penis, or inserted into the urethra at the tip of the
penis. In March 1998, the Food and Drug Administration (FDA)
approved Viagra, the first pill to treat ED. Since that time,
vardenafil hydrochloride (Levitra) and tadalafil (Cialis) have
also been approved. Additional oral medicines are being tested
for safety and effectiveness.
Viagra, Levitra, and Cialis all belong to a
class of drugs called phosphodiesterase (PDE) inhibitors. Taken
an hour before sexual activity, these drugs work by enhancing
the effects of nitric oxide, a chemical that relaxes smooth
muscles in the penis during sexual stimulation and allows
increased blood flow.
While oral medicines improve the response to
sexual stimulation, they do not trigger an automatic erection
as injections do. The recommended dose for Viagra is 50 mg, and
the physician may adjust this dose to 100 mg or 25 mg,
depending on the patient. The recommended dose for either
Levitra or Cialis is 10 mg, and the physician may adjust this
dose to 20 mg if 10 mg is insufficient. A lower dose of 5 mg is
available for patients who take other medicines or have
conditions that may decrease the body's ability to use the
drug. Levitra is also available in a 2.5 mg dose.
None of these PDE inhibitors should be used
more than once a day. Men who take nitrate based drugs such as
nitroglycerin for heart problems should not use either drug
because the combination can cause a sudden drop in blood
pressure. Also, tell your doctor if you take any drugs called
alpha blockers, which are used to treat prostate enlargement or
high blood pressure. Your doctor may need to adjust your ED
prescription. Taking a PDE inhibitor and an alpha-blocker at
the same time (within 4 hours) can cause a sudden drop in blood
pressure.
Oral testosterone can reduce ED in some men
with low levels of natural testosterone, but it is often
ineffective and may cause liver damage. Patients also have
claimed that other oral drugs including yohimbine
hydrochloride, dopamine and serotonin agonists, and trazodone
are effective, but the results of scientific studies to
substantiate these claims have been inconsistent. Improvements
observed following use of these drugs may be examples of the
placebo effect, that is, a change that results simply from the
patient's believing that an improvement will occur.
Many men achieve stronger erections by
injecting drugs into the penis, causing it to become engorged
with blood. Drugs such as papaverine hydrochloride,
phentolamine, and alprostadil (marketed as Caverject) widen
blood vessels. These drugs may create unwanted side effects,
however, including persistent erection (known as priapism) and
scarring. Nitroglycerin, a muscle relaxant, can sometimes
enhance erection when rubbed on the penis.
A system for inserting a pellet of
alprostadil into the urethra is marketed as Muse. The system
uses a prefilled applicator to deliver the pellet about an inch
deep into the urethra. An erection will begin within 8 to 10
minutes and may last 30 to 60 minutes. The most common side
effects are aching in the penis, testicles, and area between
the penis and rectum; warmth or burning sensation in the
urethra; redness from increased blood flow to the penis; and
minor urethral bleeding or spotting.
Research on drugs for treating ED is expanding rapidly.
Patients should ask their doctor about the latest advances.
Vacuum Device
Mechanical vacuum devices cause
erection by creating a partial vacuum, which draws blood into
the penis, engorging and expanding it. The devices have three
components: a plastic cylinder, into which the penis is placed;
a pump, which draws air out of the cylinder; and an elastic
band, which is placed around the base of the penis to maintain
the erection after the cylinder is removed and during
intercourse by preventing blood from flowing back into the
body.
One variation of the vacuum device
involves a semi-rigid rubber sheath that is placed on the penis
and remains there after erection is attained and during
intercourse.
Surgery
Surgery usually has one of three goals: -
-
To implant a device that can cause the penis to
become erect
-
To reconstruct arteries to increase flow of blood
to the penis
-
To block off veins that allow blood to leak from
the penile tissues
Implanted devices, known as prostheses, can
restore erection in many men with ED. Possible problems with
implants include mechanical breakdown and infection, although
mechanical problems have diminished in recent years because of
technological advances.
Malleable implants usually consist of paired
rods, which are inserted surgically into the corpora cavernosa.
The user manually adjusts the position of the penis and,
therefore, the rods. Adjustment does not affect the width or
length of the penis.
Inflatable implants consist of paired
cylinders, which are surgically inserted inside the penis and
can be expanded using pressurized fluid. Tubes connect the
cylinders to a fluid reservoir and a pump, which are also
surgically implanted. The patient inflates the cylinders by
pressing on the small pump, located under the skin in the
scrotum. Inflatable implants can expand the length and width of
the penis somewhat. They also leave the penis in a more natural
state when not inflated.
Surgery to repair arteries can reduce ED
caused by obstructions that block the flow of blood. The best
candidates for such surgery are young men with discrete
blockage of an artery because of an injury to the crotch or
fracture of the pelvis. The procedure is almost never
successful in older men with widespread blockage.
Surgery to veins that allow blood to leave
the penis usually involves an opposite procedure intentional
blockage. Blocking off veins (ligation) can reduce the leakage
of blood that diminishes the rigidity of the penis during
erection. However, experts have raised questions about the
long-term effectiveness of this procedure, and it is rarely
done.
Oral treatment
3 different tablets are currently available
from the doctor and these work when there is sexual
stimulation. Depending on the treatment, it will need to be
taken 20 minutes to 1 hour before sex and the period of time
over which it works can vary between 3 hours and up to 36
hours.
Alprostadil
This can be injected into the penis or
inserted using a special applicator - usually just before
sexual intercourse.
Alprostadil has also become available in
some countries as a topical cream and preliminary studies have
shown a clinical efficacy of up to 83%. It has an onset of
action of 10-15 minutes and its effects can last over 4
hours.
Hormone treatment
It is rare, but some men receive
hormones for their erection problem. This does depend on the
cause of the problem as well as other factors.
Other treatment methods
Zinc
Zinc is known to help prevent the conversion
of testosterone to estradiol, and testosterone is essential for
proper erectile function and the synthesis of sperm
(testosterone deficiency is a primary contributor in many cases
of erectile dysfunction). Moreover, zinc levels have been found
to be significantly reduced in both chronic bacterial
prostatitis (CBP) and non-bacterial prostatitis (NBP). Many
doctors and nutritionalists recommend zinc for prostate or
erectile problems.
Zinc is best taken in lozenge form, as in
tablet form, zinc is difficult to absorb, and can irritate the
stomach lining.
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