One reason erectile dysfunction (ED) becomes more common with age is
that older men are more likely to be on medication, and ED is often a
side effect of many common drugs. In fact, it's been estimated that 25%
of all ED is caused by medication.
Several drugs can produce erectile difficulties, but blood pressure
drugs are near the top. ED is an occasional side effect of BP drugs like
thiazide diuretics, loop diuretics, and beta-blockers, all of which can
decrease blood flow to the penis and make it difficult to get an
erection. However, other BP drugs, such as alpha-blockers, ACE
inhibitors, and angioten-sin-receptor blockers, rarely cause ED.
Some research even suggests the effect of blood pressure drugs may be
more psychological than physical. When ED occurs after a man begins to
take a new medication, it's possible that anxiety about his health,
rather than the medication, may trigger the problem. And being aware of
possible side effects may make a man more likely to recognize them as
abnormal.
According to Harvard Special Health Report Erectile Dysfunction, one study in the European Heart Journal looked
at men newly diagnosed with heart disease, but without ED, who started
treatment with the beta-blocker atenolol (Tenormin). Some of the study
participants were told about the sexual side effect of the blood
pressure drug, and ED was reported by almost one-third of the
participants. In contrast, among those who were not told the drug's name
or its side effects, only 3% said they experienced ED.
If you get ED shortly after starting treatment with any BP drug,
speak with your doctor. He or she may be able to substitute for a
different one. Keep in mind that it can take anywhere from several days
to several weeks after stopping a high blood pressure medication for
erections to return.
Even if you do not take blood pressure drugs, you should get your
blood pressure checked as high BP also can be a sign of ED. In fact, men
with ED are about 38% more likely to have high blood pressure than
those without ED, according to a study that examined the medical records
of more than 1.9 million men. That is not too surprising, since ED
often occurs in men who smoke or are overweight—both of which are common
risk factors for high blood pressure.
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