| Viagra oral therapy is one of the most widespread treatment methods of sexual dysfunction in men. The medication was initially introduced to treat heart diseases and preclude heart attacks. Later on it was found out that the medication could relax blood arteries.
Impotence, known as erectile dysfunction) is a medical condition when the penis does not harden and enlarge when a male is sexually aroused, or when he cannot sustain an erection. Viagra may help a male suffering from ED get and maintain an erection during sexual arousal. Viagra is intended for males only and must be taken as prescribed by a doctor.
An erection is the result of an increase in blood inflow into the genitals and particularly to the penis. The drug relaxes the arteries of the penile area during sexual arousal, so blood flow to the organ increases.
When taken orally before a meal, maximal medication concentration in blood is reported within 30 to 120 minutes after administration.
The effects of Viagra can last up to 4 hours, but the response lessens with time. When taken with foods containing a lot of fat, the effectiveness of the drug decreases.
The drug is contraindicated in men with cardiac problems, inborn malformations of the penis, in males with a predisposition to prolonged erections caused by blood cell disorders, liver and kidney problems, in men taking certain medications for HIV, in those over 65, in men having a recent history of a heart attack, stroke or heart rhythm disorder. Deaths have occurred during sexual activity in males using the medication.
Like other prescription drugs, Viagra can bring on adverse side effects in some males. The most frequently observed side effects in men taken Viagra are bad headaches, stomach ache, diarrhoea, general ill feeling, facial flushing, temporary visual changes (colour perception changes, light perception changes and blurred vision).
When taken with other drugs (nitrate or nitroglycerin cardiac medications), Viagra can cause serious drop in blood pressure, which can be life-threatening. Thus, before taking the drug, inquire about potential drug-to-drug interactions. |
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