A few answers on Levitra issues
Start
How quickly does Levitra work?
Levitra can start working within 15 minutes and can take up to an hour to kick in. Eating a very fatty meal may slow absorption time somewhat.
How often can I take Levitra?
Levitra should be taken at most once a day. (Wait at least 24 hours before taking it again). Levitra should not be combined with any other ED drugs like Viagra or Cialis. The maximum dose for Levitra is 20mg.
How long does Levitra last?
The primary effects of Levitra last up to 4 hours. Some people may see lingering effects up to a day or two after.