Order Viagra Prescription Impotence Medication

Viagra (sildenafil) tablets are provided in dosages of 25, 50 and 100 milligrams. The pills are blue, rounded-diamond- shaped, film coated tablets. Make sure you except no substitute. While some web sites say they are dispensing Viagra, in truth they are dispensing a cheap substitute. Only pills with the above configuration are the genuine product.

HOW DOES VIAGRA WORK?

Viagra is the brand name for sildenafil. When sexual stimulation begins nitric oxide (NO) is released into the spongy tissue of the penis. NO then activates an enzyme that increases the production of cyclic guanosine monophosphate (cGMP) the substance that relaxes the spongy tissue of the penis and facilitates an influx of blood. As specific enzymes slowly degrade cGMP the penis will slowly loose its ability to sustain an erection. Viagra works by inhibiting those enzymes that degrade cGMP, thereby enhancing ones ability to obtain and sustain an erection.

HOW EFFECTIVE IS VIAGRA?

Over 21 studies have been done to evaluate the efficacy of Viagra. Evaluation of drug activity was most often done using a self-assessment questionnaire. During a 6-month open labeled study, Viagra was found to improve sexual function in 88% of those treated. This included frequency, firmness, and maintenance of an erection; frequency of orgasm; frequency and level of desire; frequency, satisfaction and enjoyment of sexual intercourse; and overall relationship satisfaction.

WARNINGS:

If you take any medicines that contain nitrates - either regularly or as needed - you should never take Viagra.

If you take Viagra with any nitrate medicine or recreational drug containing nitrates, your blood pressure could suddenly drop to an unsafe level. You could get dizzy, faint, or even have a heart attack or stroke. Nitrates are found in many prescription medicines that are used to treat angina (chest pain due to heart disease) such as: nitroglycerin (sprays, ointments, skin patches or pastes, and tablets that are swallowed or dissolved in the mouth), isosorbide mononitrate and isosorbide dinitrate (tablets that are swallowed, chewed, or dissolved in the mouth). Nitrates are also found in recreational drugs such as amyl nitrate or nitrite ("poppers"). If you are not sure if any of your medicines contain nitrates, or if you do not understand what nitrates are, ask your doctor or pharmacist.

Side Effects

Headache, flushing, stomach upset, nasal stuffiness, diarrhea and dizziness might occur. If these effects persist or worsen, notify your doctor promptly.

Unlikely but report promptly: painful or other urination problems, vision problems, skin rash.

Very unlikely but report promptly: chest pain, fainting, foot or ankle swelling. If you experience a painful or prolonged erection (lasting longer than 4 hours), stop using this drug and seek immediate medical attention.

If you notice other effects not listed above, contact your doctor or pharmacist.

Precautions

Before using this drug, tell your doctor your medical history, including: allergies (especially drug allergies), penis conditions such as fibrosis/scarring (e.g., Peyronie's disease), history of painful/prolonged erection (priapism), sickle cell anemia, blood system cancers (such as leukemia or myeloma), eye problems (retina diseases), kidney or liver disease, bleeding disorders, active stomach ulcers, heart disease, stroke, very high or low blood pressure.

Limit alcohol intake, as it may aggravate side effects of this drug.

Since this drug may cause dizziness, caution is advised when performing tasks requiring alertness (e.g., driving). To avoid dizziness and lightheadedness when rising from a seated or lying position, get up slowly.

This drug is not to be used in women or children.

The elderly may be more sensitive to the side effects of this drug, therefore caution is advised in this group.

Overdose

If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include severe dizziness, fainting, or prolonged erection.

Notes

Do not share this medication with others, since they may have a problem that is not effectively treated by this drug.

Use of this drug does not protect against sexually transmitted diseases (e.g., HIV, Hepatitis B, gonorrhea, syphilis).

Missed Dose

Not applicable.