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Medical Review: Dr. Rivera An estimated 30 million men across the United States suffer from erectile dysfunction, also known as male impotence. Despite the fact that the condition is extremely common, many men suffering from erectile dysfunction feel embarrassed and ashamed about the difficulties they experience. What is erectile dysfunction and what causes it? Erectile dysfunction is a common medical condition that can affect men of any age.

Sometimes called male impotence, erectile dysfunction limits the blood flow to the penis, causing men to be unable to get an erection or keep an erection that is hard enough to engage in sex. There are many different factors that can contribute to erectile dysfunction, but some of the most common are physical health conditions that are strongly linked to an unhealthy lifestyle, including: atherosclerosis clogged arterieshigh blood pressure, high cholesterol, diabetes, and obesity.

Other lifestyle factors, such as smoking, alcohol abuse, illegal drug use, side effects of other prescription medications including those used to treat high blood pressure, heart disease, and depressionand side effects of over-the-counter medications such as antihistamines and Sudafed can also contribute to erectile dysfunctioneven in men who do not have any other risk factors for the condition.

Psychological health is also strongly linked to erectile dysfunctionas stress, anxiety, and depression can all make the condition more likely to occur. How does sildenafil work to treat erectile dysfunction? Sildenafil citrate belongs to a class of medications called phosphodiesterase-5 PDE-5 inhibitors, and interestingly enough started as the active ingredient for an anti-angina chest pain medication. During the first part of an erection, cGMP causes the tissues and muscles of the penis to relax, allowing blood to enter the shaft of the penis.

Blood then becomes trapped as a result of the relaxation of the muscles, causing an erection to occur. The body then directs PDE-5 to start breaking down the cGMP, which causes blood to flow out of the blood vessels of the penis and end the erection. As a result, blood stays trapped in the penis, keeping it erect. How long does it take for sildenafil to start working? Sildenafil is a fast-acting drug compared to some types of prescriptions, but it www levitra 20 mg not work as quickly as some other erectile dysfunction medications.

Some other erectile dysfunction medications, like Cialis tadalafilwork more slowly than sildenafil, while others, like Levitra vardenafil and Spedra avanafilwork more quickly. Sildenafil is taken on an as-needed basis in advance of anticipated sexual activity, so knowing how long it takes for sildenafil to take effect is important. While most men will notice the effects of sildenafil in 30 to 60 minutes, others may not feel the full effects of the drug for up to two hours.

While age and health do play a role in how quickly your body processes sildenafil, other factors, including recent consumption of a high fat meal, can also impact the amount of time it takes sildenafil to take effect.

How long does sildenafil last? Just as the amount of time it takes to experience the effects of sildenafil varies from person to person, the length of time that sildenafil lasts will also vary. Sildenafil is widely marketed as working for up to four hours with a half life of three to five hours, but most men find that the effects of the medication last for closer to two to three hours.

Some people process sildenafil more slowly and may feel the effects of the drug for up to six hours depending on the dosage of the medication that is taken. The marketing materials and literature indicate that sildenafil lasts for up to four hours. One thing that is not affected by when you took sildenafil or what dose of the medication you take is the amount of time it will take to achieve an orgasm.

Some people may be able to achieve more than one erection from a single dose of sildenafil depending on the amount of time they need to rest after ejaculation, but it should not be a painful erection or a case of priapism.

How long does sildenafil stay in my system? Most people stop experiencing the effects of a 20 or 40 mg dose within two to three hours, although some people may www levitra 20 mg up to six hours to fully metabolize the medication, depending on their age and health.

Higher doses of sildenafilsuch as 80 mg or mg, last longer in the body and may take up to eight hours to be fully metabolized. There are several different factors that are known to influence how long sildenafil stays in your body such as whether or not it was taken on an empty stomach. Where can I purchase sildenafil at a discount? Sildenafil is a popular medicationbut even though it is a generic drug, it can still be cost prohibitive for some people.

Further, the need for a prescription requires a visit to the doctor, and the cost of a copay is also out of reach for some men. These companies, including HimsHuge, BlueChew, and HealthyMale, all offer free virtual consultations with a licensed healthcare professional in your state who will review your medical history, discuss your symptoms, provide a diagnosis, and recommend treatment options, which may include sildenafil, depending on your medical history.

Especially since sildenafil is not recommended for those taking nitrates for heart problems, these consults are particularly important. Subscriptions are available for automatic monthly deliveries through some websites, while others deliver the medications on an as-needed basis. There are plenty of options for medication doses and quantities, which help make the drug more affordable.

When purchasing sildenafilmake sure that you only purchase the drug from a pharmacy licensed in the U. Sildenafil and its brand name form, Viagraare among the most commonly counterfeited medications in the world due to their popularity and cost. Additionally, any website that promises www levitra 20 mg sell you sildenafil without a prescription is almost certainly selling counterfeit medication, as the drug requires a prescription due to its potential to cause serious side effects.

Summary The drug provides full effects for most men for two to three hours before the effects of the drug start to dissipate, but some men may notice effects for six to eight hours or longer depending on their age or health.

Consumption of fatty foods shortly before taking the medication can cause absorption to be slower, but they can also cause the drug to stay in your body for longer. Men who already have a prescription for sildenafil can still save money by shopping on these sites instead of visiting a brick and mortar pharmacy. References, Studies and Sources:.

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