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Power of the Pill
Ads for ED remedies make all kinds of promises.
Here are the facts about what these drugs do, how they do it—and the
importance of consulting your doctor.
By Mark CantrellYou’ve probably seen the
commercial: A 50-something man repeatedly attempts to throw a
football through a tire swing, with no success. His brow furrows.
But what’s this? Inexplicably, his mood suddenly has changed. He
tries again, and this time hits a bull’s-eye. His smiling wife joins
him in the yard, and they briefly toss the football around before
happily heading indoors.
If you were a bit confused about what this ad was selling, you
weren’t alone. In the beginning, commercials and advertising
campaigns for drugs designed to combat erectile dysfunction (ED),
such as this one (for Levitra), tended to tread lightly. But like so
many topics in the new millennium, ED has become fair game, and ads
for Levitra, Cialis, and the old standby Viagra now fill the
airwaves—and there’s no question what the product is supposed to do.
In this case, that’s a good thing. We males have long had a
reputation for reticence when the specter of a visit to the doctor
arises, especially when our reproductive plumbing is involved. Many
of us tend to procrastinate, hoping the problem will “just go away.”
Unfortunately, what goes away when ED is ignored is our quality of
life. And the ramifications can be much more serious than that.
“ED can be a sign of emotional or psychological problems, but it can
also be a warning sign for an underlying serious disease,” says Dr.
Richard Watson, chief of Ambulatory Urology at the Hackensack
University Medical Center and professor of Surgery (Urology) at the
University of Medicine and Dentistry of New Jersey.
Watson, who retired as a colonel after 25 years as an Army
urologist, cautions that “maybe your ED is the first sign of
diabetes, or of vascular disease. Maybe your first sign is ED, and
your next sign is a major myocardial infarction.”
Fortunately, ED now is highly treatable thanks to an array of new
drugs that target its underlying causes. That’s good news, because
conservative estimates by the National Institutes of Health place
the number of men currently affected by ED at more than 30 million,
and that figure is expected to more than double by 2025.
According to Dr. Ridwan Shabsigh, director of the department of
urology at Columbia University’s College of Physicians and Surgeons,
about half of all men over the age of 40 suffer from some form of
ed. And yet Shabsigh, author of the book Back to Great Sex:
Overcome ED and Reclaim Lost Intimacy (Kensington Publishing
Corp., 2003), reports that relatively few seek treatment.
Vigor + Niagara = Viagra
Reluctance to seek help was more understandable in the old days,
when treatments for ED mostly relied on mechanical means. These
methods still are used (and have advanced considerably) but are
considered the last line of defense for ED now that new medications
are available.
Now, people often thank Bob Dole for bringing ED into the
open. “And not only guys,” says Dole. “I’ve been in airports
where women come up and kind of whisper, ‘Thanks for doing
that.’ It’s a partner thing, not just a man thing.”
Unless you’ve been in a cave in Afghanistan for the past few years,
you’ve heard of Viagra, the first and still most widely prescribed
anti-ed drug on the market. Introduced by Pfizer in 1998, the little
blue pill became an instant hit, giving men with ED new hope.
One veteran who heard about the Viagra clinical trials and quietly
signed up was Bob Dole, the former senator from Kansas, whose
surgery for prostate cancer in 1991 left him with ed. No stranger to
battle—he had been seriously injured as an Army captain in Italy
during World War II—Dole had no intention of allowing ED to beat
him.
When Pfizer learned of Dole’s participation in the trials, they
hired him as spokesperson for Viagra. With Dole’s help, Viagra
became an unparalleled success, leading to an increased dialogue
about ED and lessening the stigma that had been associated with the
condition. Now, people often thank Dole for bringing ED into the
open. “And not only guys,” says Dole. “I’ve been in airports where
women come up and kind of whisper, ‘Thanks for doing that.’ It’s a
partner thing, not just a man thing.
“Some guys are embarrassed about it, but it’s like any other
illness. If you have a problem, you’ve got to go to the doctor,”
Dole says. “He’s not going to run around blabbing to everybody in
the office, ‘Hey, this guy just walked in and he’s got an ED
problem.’ He’s not going to violate the confidential doctor/patient
relationship. If you’re still embarrassed, go in after hours or
early in the morning when there’s nobody else around.”
In the summer of 2003, GlaxoSmithKline and Bayer Pharmaceuticals
announced a joint venture to introduce Levitra, Viagra’s first
challenger. In the fall, Eli Lilly outdid them both with Cialis.
Unlike the effects of Viagra and Levitra, which last about four
hours, Cialis is effective for up to 36 hours, giving it a “set it
and forget it” appeal the other drugs lack. And it can begin to work
in as little as 16 minutes versus up to an hour for Viagra. In
February 2004, Levitra and Cialis both appeared in Super Bowl
advertisements, for which their manufacturers paid more than $40
million for each 60-second spot. ED treatments now were officially
big business.
But you’re probably less interested in the hoopla than in exactly
how these drugs work. It helps to know how the erectile process
works. Watson explains: “There are three erectile bodies, lying deep
within the penis, which act … as rods. Two of them are dorsal (on
the top) and are called the corpora cavernosa. They’re the
ones that become rigid with erection. There’s also one on the
ventral aspect—the belly side—of the penis called the corpus
spongiosum. That one becomes turgid with erection, but not
rigid.
“The corpora cavernosa are cylinders which have fibrous outer walls
and a lot of vascular sinuses inside—areas where blood can be stored
under pressure. When flaccid, these cylinders are semi-collapsed,
but when it’s time for an erection, the blood comes rushing in and
they fill up. Because of their fibrous coating, they can only expand
so far. After that, they just become harder. There’s also a
secondary function, whereby drainage from these cylinders slows
down. So with the blood rushing in and the exit slowing down, the
blood filling the two rods, or corpora, causes an erection. The rods
swell up with inrushing blood and let the good times flow, so to
speak.”
Considering all the good these drugs can do for men with ED,
could there possibly be a downside? Well, yes: None of the drugs
is completely free of side effects.
The problem arises (no pun intended) when something happens to
disturb that flow of events. As it turns out, an erection depends on
several factors working correctly in just the right sequence. A body
chemical called cyclic GMP initiates the muscular and vascular
changes that lead to an erection, while an enzyme known as pde-5
helps it subside after its work is finished. But if you don’t have
enough cyclic GMP to hold off the effects of pde-5 long enough to
get the job done, you experience a power failure.
Better living through chemistry
All of the anti-ed drugs work by suppressing the effects of pde-5
for various periods of time, allowing the cyclic GMP to take over
and produce its intended result. Sildenafil, the drug that became
Viagra, originally was created as a cardiac medication designed to
treat angina by increasing blood flow to the heart. Test subjects
reported a surprising side effect: improved and longer-lasting
erections. In fact, several were reluctant to give their remaining
pills back after the trial was over. Pfizer immediately set to work
refining and testing the drug for use in ED patients, and the rest
is history.
Considering all the good these drugs can do for men with ed, could
there possibly be a downside? Well, yes: None of the drugs is
completely free of side effects. According to Pfizer, Viagra can
cause headache, facial flushing, upset stomach, and bluish or
blurred vision or sensitivity to light and shouldn’t be taken with a
high-fat meal. The company says the effects usually are mild and
brief. Eli Lilly reports incidences of headache, upset stomach,
backaches, and muscle aches for Cialis users. Men taking Levitra
might experience headaches, flushing, and stuffy or runny noses,
according to Bayer/GlaxoSmithKline.
Too much of a good thing
Watson notes one potential side effect that should be treated
right away: priapism. “When an erection lasts for more than an hour
or so, it is important to seek medical help immediately,” he warns.
Although it might be an embarrassing dilemma to explain in the
emergency room, Watson says, “this complication is no joke. If not
treated promptly, this condition can result in permanent damage to
the penis.”
There’s also one extremely important caveat: If you’re taking
nitrate drugs such as nitroglycerin, you should avoid ED drugs,
which could cause a dangerous drop in blood pressure when combined
with nitrates.
If you just get a pill on the Internet, the long-range
problem may be greater than the one you’re trying to solve,” Dr.
Richard Watson warns. “The important thing is to have it checked
and not to be embarrassed or ashamed. Have it checked by a
doctor you trust.”
“Regardless of your current health status, you should always get
clearance from your physician first before trying any ED
medication,” Watson advises, but he notes that just because you have
a heart problem doesn’t automatically mean you can’t take this type
of medication. “Men had heard the misinformation that if they took
Viagra with any heart condition, they could die,” he notes, “and
they’d say to themselves, ‘Well, I’d like to have a good erection,
but I’m not dying to have one.’ ... The good news is that most heart
patients can take these drugs, as long as they get medical clearance
from their physician first to make sure they don’t have some other
hidden health problem.”
As Watson points out, for most men the benefits far outweigh the
drawbacks: “There aren’t many men who, when asked ‘Would you like to
have a bigger, better erection?’ will answer ‘No thanks.’”
Mind as well as matter
Still, Watson worries about the development of a “quick fix”
mentality among overworked physicians who might prescribe a drug
without a comprehensive patient interview. Although most cases of ED
can be traced to an organic, physical disorder, erectile dysfunction
most often carries with it an emotional and psychological component
as well.
“From an emotional standpoint, I think the thing we’re missing is
that human sexuality and intercourse is an extraordinarily intense
experience in communication between two people,” says Watson. “When
erectile function starts to fail, sometimes it means the psyche, the
mind, is telling the body ‘there’s a problem with communication
here, and it’s so serious you’re going to have to deal with it.’”
Anxiety can be a major factor as well. Most men experience an
equipment failure from time to time for reasons ranging from stress
to exhaustion, and as Watson points out, it’s not exactly an ego
booster.
“The next time you go back in the bedroom, you bring that memory
with you along with some anxiety, and that increases the likelihood
you’ll have another disappointing experience,” he says. That can
result in withdrawal from intimacy, creating a whole range of new
problems. In those cases, Watson prescribes an anti-ed drug on a
short-term basis to build confidence.
If you’re hesitant to even mention ED to your doctor, you might be
tempted to get Viagra or one of the other drugs on the Internet.
After all, they’re widely available, and you can buy them
anonymously. But that would be a mistake, says Watson. As mentioned,
ED can be a warning sign of a serious medical problem, which can’t
be diagnosed via the World Wide Web.
“If you just get a pill on the Internet, the long-range problem may
be greater than the one you’re trying to solve,” Watson warns. “The
important thing is to have it checked and not to be embarrassed or
ashamed. Have it checked by a doctor you trust.”
The bottom line: If you have ed, take Bob Dole’s advice and go to
the doctor. Make sure your doctor is someone you’re comfortable
with, and give him or her as much information as possible about your
symptoms and lifestyle to facilitate an accurate diagnosis. Making
that appointment might not be easy, but it could save your life, as
well as make it more enjoyable.
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