Alprostadil is
a vasodilator used to increase blood flow to the penis
and to cause an erection. Alprostadil is used for patients
who experience impotence as a result of prostate cancer
treatment. Alprostadil is usually given by injection
into the corpora cavernosa of the penis. A doctor determines
the appropriate dose of alprostadil and usually will
administer the first injection. The patient will administers
the following injections. Erection should occur within
5 to 20 minutes of injection. Alprostadil should not
be injected into an erect penis.
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