Viagra can enhance your sexual potency to the fullest. In fact Viagra is a wonder pill your partner would love you to have, as Viagra hates erectile dysfunction. Visualize the smile Viagra would bring on the face of your partner, and imagine the wonders Viagra would work on your life. Take a sexual ride filled with unimpeded passion and ardor with Viagra!

Viagra - An Outline:
Viagra is a trademark drug of Pfizer for erectile dysfunction that contains Sildenafil Citrate as the main component. Viagra is the first oral drug for erectile dysfunction approved by the FDA in March 27, 1998. Viagra is an effective pill for the treatment of patients with ED, but it cannot cure ED. Viagra helps a person with erectile dysfunction to achieve an erection by increasing the blood flow in the penile region. Viagra starts acting in 30 minutes time.

Viagra Mechanism:
Sildenafil citrate, the main component of Viagra is a PDE5 inhibitor. Normally, when a man is sexually excited, nitric oxide (NO) is released in the corpus cavernosum of the penis. NO activates the enzyme guanylate cyclase in the smooth muscle cells which relaxes the penile arteries and increase the flow of blood into the penile cavity. Viagra allows cGMP to accumulate by inhibiting the phosphodiesterase action that tends to magnify the effect of NO release. But Viagra can be effective only when a man is sexually stimulated.

Viagra Safety Information:
Viagra is not an aphrodisiac that boosts up the sexual prowess of men. Viagra is a scientific drug for the treatment of people with erectile dysfunction and doesn't guarantee you protection from any of the sexually transmitted diseases. Viagra should be taken only under strict medical conditions after consulting a registered physician. Viagra is not meant for children or women. Viagra should be avoided if a person has the following medical conditions:

• Liver problems
• Heart diseases
• Kidney disease
• High blood pressure and low blood pressure
• History of stroke
• Diabetes
• Coronary artery disease
• Priapism
• Blood cell diseases
• Bone marrow diseases
• Defective penis
• Optical problems like NAION.

Viagra need to be taken after weighing the positive and negative factors, if you are taking any of the following medicines:

• Other erectile dysfunction drugs
• Alpha-blockers
• Erythromycin
• Itraconazole
• Ketaconazole
• Ritonavir
• Nitrates
• Mibefradil
• Cimetidine

Viagra Dosage:
Viagra is available in 25mg, 50mg and 100mg doses in the tablet form. The dosage of Viagra for an ED patient needs to be monitored by a doctor, as it may differ from person to person. The generally followed standards of Viagra dosage are:

• 50 mg once a day, an hour before the sexual activity for patients below the age of 65.
• 25 mg once a day, an hour before the sexual activity for patients above the age of 65.
• 25 mg once in two days for patients, who are taking any other protease inhibitors.

Viagra Storage:
Viagra need to be kept under proper and careful storage conditions. You need to keep the following points in mind while taking care of Viagra storage:

• Viagra should be stored in its original container
• Viagra should be kept out of children's reach
• Viagra should be kept away from heat and light
• Viagra shouldn't be stored in a refrigerator
• Viagra shouldn't be stored in damp and moist places
• Viagra with outdated labels should be discarded.

Viagra Side Effects:
Viagra has some side effects that may give a negative impact on the person taking it. A patient must talk to his physician if he comes under the spell of any of the following harmful side effects:

More Common: runny nose, diarrhea, nose bleeding, muscle ache, breathing problem, flushing, redness of skin, headache, nasal congestion

Less Common: itching, abnormal and blurred vision, bladder pain, upset stomach, dizziness, pain in urination, chest pain, numbness, prickling and burning feelings.