Viagra: Durability and other issues
For the many people who are contemplating using Sildenafil Citrate, the wonder drug, the question is: "How long does the drug last?" The answer to this is dependent on a number of factors and varies from individual to individual.
However, the standard time expected for Viagra tablets to last in the body is four hours – though the little blue pills are known to generally start losing their effectiveness after some couple of hours.
The time it takes for Viagra to start working will also vary based on the individual. It has been shown in clinical studies that Viagra tablets begin to work within the body in as little as 14 minutes. For most people, though, the little blue pills start to act within 30 minutes.
Factors that affect the durability of Viagra tablets
Ideally, a number of factors can either increase or decrease the durability of Viagra tablets in the body. Some of the factors that could increase the length of time Viagra tablets stay in the body include the following:
• Having severe liver disease or kidney disease
• Being over 65 years old
• Taking certain other medicines that interact with Viagra tablets
Also, there are factors that can reduce how long Viagra lasts in the body. Some of these factors include the following:
• Taking Viagra tablets with meals rich in fatty contents
• Taking Viagra tablets in combination with certain other medications, such as rifampin.
Who manufactures Viagra?
Viagra is the registered trademark of Pfizer.
What are Viagra tablets used for?
Viagra has been patented by the United States Food and Drug Administration for the treatment of erectile dysfunction. Erectile dysfunction (ED), which is also referred to as impotence, can be a total inability to have an erection, or a tendency to sustain only brief erections, or an erratic ability to do so.
Erectile dysfunction, in essence, is the consistent inability to get or maintain an erection that is firm enough for sexual intercourse.
How do Viagra tablets work?
Viagra tablets work by inhibiting an enzyme that stops blood from flowing into the corpus cavernosum of the penis. When more blood flows into the corpus cavernosum, the penis becomes erect.
What are the effects of Viagra?
Previously conducted clinical studies have shown that as much as 88 percent of men who took Viagra tablets for their erectile problems reported improved erections.
In addition, Viagra has been shown to be effective for men who have certain medical conditions and following various types of surgeries.
What are the side effects of Viagra?
Viagra has been extensively studied in clinical trials, with close to 4,000 people having been evaluated. In the clinical studies, side effects occurring among a certain group of people using the little blue pills were documented and then compared with those that occur in another group not using the drug.
It is possible this way to see the side effects that occur, the frequency of their occurrence, and how the results compare with the group that is not taking the drug.
Based on these studies, it was shown that a high proportion of people who take Viagra tolerate it well. However, the side effects caused by Viagra are usually minor. Facial flushing, indigestion and headaches are some of the more common side effects of Viagra. Uncommon side effects include temporary vision loss, migraines and allergic reactions.
