15 49.0138 8.38624 1 0 4000 1 https://eddrugs2017.com 300 true

Taking Viagra to Keep Potency After Prostate Cancer

0 Comments

For many men, the biggest fear about prostate-cancer treatment is whether it will render them impotent.

But now researchers are studying several ways to preserve a man’s erectile function after prostate cancer. Treatments ranging from regular Viagra before and after surgery to experimental drugs and treatments that protect, regrow and replace delicate nerves all are being studied.

Already, nerve-sparing surgical techniques can dramatically improve a man’s chances for remaining potent following surgery. But the procedure isn’t perfect. Even in highly skilled hands, the surgery can leave between 25 percent and 50 percent of men with significant and long-term porn induced erectile dysfunction, depending on the man’s overall health to begin with. Non-surgical treatments for cancer, like radioactive seeds and hormone therapy, can also take a devastating toll on a man’s erectile health.

“Many men almost don’t want to find out if they have cancer because they are afraid the complications of the treatment will be worse than the disease itself,” says Michael Chancellor, director of neuro-urology at University of Pittsburgh Medical School. “They don’t want to be impotent or incontinent so they don’t even come forward to be tested.”

Some studies are trying to determine whether taking regular doses of Viagra both before and after treatment can lower a man’s risk for impotence. Viagra, which increases blood flow to the penis, already is widely used to treat impotence. The difference here is that the drug is being taken several times a week in hopes of preventing problems or to restore erectile function, rather than to simply help a man achieve a one-time erection.

One concern is that Viagra, which costs about $10 a pill, can be expensive to use regularly. In addition, it can cause side effects, like headaches and congestion. But studies show it can make a difference, possibly by improving the quality of nighttime erections, an involuntary occurrence that helps maintain blood flow and oxygen to the penis. The worry is that prostate-cancer treatment interferes with nocturnal erections and that, over time, penile tissues will degenerate. So even though it may take months before complete function is restored, some doctors say it’s important to start treatment early.

In a study presented Monday during the American Urological Association annual meeting, researchers followed 54 men who had undergone nerve-sparing prostatectomy. The study, which was funded by Viagra-maker Pfizer, showed that 29 percent of men who used nightly Viagra for nine months showed significant increases in erectile function and nocturnal erections compared with just 5 percent of patients on placebo. What was surprising, however, is that the men returned to normal sexual function even after stopping the drug. The results indicate Viagra had a rehabilitative effect and may help repair nerve damage, says Harin Padma-Nathan, clinical professor of urology at University of Southern California Keck School of Medicine.

Researchers at Fox Chase Cancer Center in Philadelphia are studying whether Viagra makes a difference if taken after both radiation and hormone treatments. Another study is looking at whether Viagra given before radiation treatment can prevent problems. The week before treatment the men take the drug at least three times, and continue taking the drug for a month after treatment.

In addition to the improved blood flow to the penis, Viagra may give men dealing with cancer a needed psychological boost, says Deborah Watkins-Bruner, director of the center’s prostate-cancer risk-assessment program. “After treatment men are afraid it’s going to hurt, and they’re afraid of failure,” says Dr. Watkins-Bruner. “This can help men overcome any psychological issues.”

Several academic centers around the country have just begun a year-long study of an experimental drug from Guilford Pharmaceuticals of Baltimore, which may help protect and regenerate nerves traumatized during prostate surgery. The drug, for now called GPI-1485, which is also being studied to treat Parkinson’s disease, is given to men before and after nerve-sparing prostate surgery. Right now, it can take a few days to several years for a man to recover erectile function following the surgery, and nearly every man will have at least a temporary problem.

“The nerves are bruised in surgery and it takes time to recover,” says Eric Klein, head of urological oncology at the Glickman Urological Institute at Cleveland Clinic. “The idea behind these drugs is to try to protect the nerves so they can recover sooner and men will be potent sooner.”

And there’s still hope for patients who don’t qualify for nerve-sparing surgery. At University of Texas-M.D. Anderson Cancer Center in Houston surgeons are studying whether a nerve from a man’s leg can be grafted to help restore sexual function. Researchers studied 30 men who required radical prostatectomy in which neither of the two key nerves could be saved. Among the men who received a nerve graft from the leg, 47 percent were able to achieve an erection on their own or with the use of Viagra, compared with only 2 percent in the group that didn’t receive the nerve graft, says Richard Babaian, professor of urology at M.D. Anderson.

And in the next year, University of Pittsburgh researchers hope to begin human studies in which stem cells grown from a man’s own muscle tissue will be injected to help protect and regenerate nerves to the penis. Animal studies presented at the national urology meeting this week show the muscle-derived cells can regnerate injured nerves and improve erectile function.


Male Extra is a natural alternative to Viagra. The best male enhancement pills help restore sex drive in men promoting the enhancement of sexual activity.

Previous
Next

0 Comments

Leave a Reply