| Viagra oral therapy is one of the most efficacious treatment methods of sexual dysfunction in men. The medication was initially invented to cure blood vessel problems and prevent heart attacks. Later on it was found out that the pills could widen blood vessels.
Impotence, also called erectile dysfunction) is a medical condition when the penis does not become firmer and larger when a man is sexually aroused, or when he cannot maintain an erection. Viagra may help a male with ED achieve and keep an erection during sexual arousal. Viagra is intended for men only and must be taken if recommended by a general practitioner.
An erection is the result of an increase in blood inflow into the genitalia and especially to the penis. Viagra relaxes the arteries of the penis during sexual stimulation, so more blood can flow into it.
When taken orally on an empty stomach, maximal drug concentration in plasma is observed within 30 to 120 minutes after administration.
The effects of Viagra can last up to 4 hours, but the response decreases with time. When taken with fat products, the potency of the drug reduces.
The drug is contraindicated in men with cardiac problems, forcible deformities of the penis, in men predisposed to protracted erections caused by sickle cell disease, multiple myeloma (a type of cancer), leukemia, liver problems (in particularly serious liver disorders), kidney problems and in men taking certain medications used for HIV or those over 65. Deaths have occurred during sex in men taking the pill.
Like other prescription medications, Viagra can bring on adverse side effects in some males. The most commonly reported side effects in men taken Viagra are pounding headaches, indigestion, diarrhea, giddiness, redness in face, neck and/or chest, temporary visual changes (color perception changes, light perception changes and blurred vision).
When taken with other drugs (nitrate or nitroglycerin cardiac drugs), Viagra can cause dangerous drop in blood pressure, which can be lethal. Therefore, before taking the medication, talk to your general practitioner about potential drug-to-drug interactions. |
