Levitra ED medication

Some drugs may decrease the effects of Levitraand prevent it from properly treating your infection. Inform your doctor if you are taking any of the following medicines along with Levitra.

• Nitrate - nitroglycerin, isosorbide dinitrate, isosorbide mononitrate and others.
• Recreational drug - amyl nitrate or nitrite.
• Alpha blocker - doxazosin, guanadrel, prazosin, terazosin and others.

You may not be able to take Levitra, or you may require a dosage adjustment or special monitoring during treatment if you are taking any of the medicines listed above.

Drugs other than those listed here may also interact with Levitra.

Levitra should be used exactly as directed by doctor, or follow the directions that accompany the package.

Start your Generic Levitra only after consulting your doctor first.

• Take each Generic Levitra with a full glass of water.
• It can be taken with or without food.
• Generic Levitra is usually taken when needed. Generally, it is taken about 1 hour before sexual activity
• Generic Levitra should not be taken with grapefruit or grapefruit juice. It can interact with grapefruit and grapefruit juice.
• Do not take Generic Levitra more than once a day. In some cases, use of Generic Levitra may be restricted to once every 72 hours (3 days).
• While taking Generic Levitra if you develop dizziness, nausea, or angina (pain, tightness, discomfort, numbness, or tingling in the chest, arms, neck, or jaw) during sexual activity, refrain from further sexual activity and notify your doctor.
• Contact your doctor for any erection that lasts longer than 4 hours due to Generic Levitra.

Some very smart scientists discovered that cyclic
guanosine monophosphate (cGMP) was the key to sustaining
an erection.

They discovered that when a man gets sexually stimulated,
a chain reaction occurs in the tissue of the penis that results
in elevated levels of a substance called cyclic guanosine
monophosphate (cGMP).

As long as there are sufficient levels of cGMP, the penis can
remain erect. The more cGMP, the more robust and durable
the erection.

If you inhibit the degradation of cGMP it stays around in the
penis longer, producing a more durable erection.

Another way you can think of Levitra (and all other similar
medicines) is that it preserves the elevated levels of cGMP
that are created when a man is sexually stimulated for a
stronger, more lasting erection.

That’s how Levitra works - Levitra blocks the enzyme
phosphodiesterase-5 (PDE5) which is responsible for the
neutralization of cGMP. Levitra (Vardenafil) is a highly
selective inhibitor of PDE5. (PDE5 is not the only
phosphodiesterase involved in the erectile physiology
but it appears to be the most important one).

The nice thing about PDE5 blockers is that they shouldn’t
cause erections at inappropriate times because they only
block degradation of cGMP produced in reaction to sexual
stimulation, such as thinking about something sexy. If you
are not being sexually stimulated, there is no cGMP to
protect, so the drug remains in the background.