Impotence is a problem affecting one in ten men. It is defined as inability to get or maintain an erection during sexual intercourse. According to a study conducted in United States the number of people suffering from this problem has been increasing. This is a serious concern but can be treated. There are medicines available for male impotence treatment.

It has been proved that people having diabetes are more prone to impotency. The reason for the same is-men needs healthy blood vessels and hormones to maintain an erection. Diabetes damages these blood vessels that are responsible for erection during sexual intercourse.

Some other causes include physical damage to penis, excessive smoking and alcohol consumption, usage of drugs, birth defects and ageing.

Psychological causes include stress, depression, relationship problems, mental fatigue and less sexual interest.

Whatever the cause may be, there are three oral drugs approved by FDA which can be prescribed for treating impotency- Viagra , Cialis and Levitra. The functioning of all three is same.

Viagra is an oral medicine invented in 1990s and is prescribed for male impotence. It has proved to be effective in treating erectile dysfunction. Sildenafil is an active ingredient of Viagra.

Inability to maintain an erection is due to less blood flow to penis. Viagra Sildenafil allows a greater flow of blood to the penis during sexual arousal. It helps in releasing some chemicals in the penis and making them stay there for a long time thus allowing a man to maintain an erection. Viagra works only when a man is sexually excited and it does not help in increasing a sexual desire.

Viagra has been proved to be more effective when taken on empty stomach than after full appetite. It generally starts working within 30 minutes to one hour after consumed. Its effect remains for around 4 hours. It is during these 4 hours that a man should be sexually excited to obtain an erection.

You can buy Viagra in a tablet of 25mg, 50mg and 100mg. The recommended dosage is 50mg. But it is advised to take the dose as prescribed by the doctor. Viagra should be taken one hour before having sexual intercourse. It should be taken once in 24 hours.

No medicine comes without side effects. Before taking Viagra, you must be aware about all possible side effects.

?Headache

?Stomach ache

?Flushing

?Diarrhea

?Dizziness

?Urinary Tract Infection

?Skin Rash

?Mild changes in vision

?Nasal Congestion

?Joint Pain

Consultation with doctor is necessary if a person experiences side effects other than listed above.

Viagra should not be taken by women. Anyone who is allergic to the ingredients of Viagra should not consume it. Also men who are taking medicines containing nitrate should not be prescribed Viagra as the combination of two can result in low blood pressure.