Long Answer: One of
Levitra's main claims to fame is that it is supposed to work faster than Viagra. The idea being that a faster-acting drug allows for more
romantic spontaneity.
Conventional wisdom has
been that Viagra takes 30 minutes to an hour to kick-in. However, Pfizer
released a study in December 2002 that showed that "Results showed that
within 14 minutes of taking Viagra, 35 percent of men achieved at least
one erection that resulted in successful sexual intercourse. A majority of
men (51 percent) achieved this response within 20 minutes." So, for many
men, Viagra too can work in less than 30 minutes.
An important point with
Viagra is that it works fastest on an empty stomach; Levitra, however,
is said to be less sensitive to food or alcohol intake. That may be one reason why for some men
Levitra works somewhat faster. Here is a quote from some research on this issue:
In a separate randomized,
double-blind study, men with mild to severe ED received a four-week supply
of Levitra 20 mg or placebo and were asked to start sexual activity
immediately after dosing. Results showed that significantly more men
taking Levitra 20 mg experienced an erection adequate for successful
completion of intercourse as early as 16 minutes after dosing compared
with men taking placebo (34 per cent versus 24 per cent, respectively).
Both drugs last about as
long, up to four hours, though some people report residual effects up to a
full day later. A competing drug, Cialis, has been nicknamed the
"weekender" because it lasts much longer, up to two or three days.
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