Many people have to deal with sexual performance problems, especially premature ejaculation, erectile dysfunction, or decreased sexual desire. This makes them have to find a way to 
increase male sexual performance, and Viagra is an option that many people are interested in because it is advertised as having properties that will help increase endurance, delay premature ejaculation, and stimulate sexual desire well. 

Today, เว็บพนันออนไลน์ UFABET สมัครง่าย โปรโมชั่นมากมาย Clinic will introduce you to this medicine: what it is, should you take it, and what are its side effects?

What is Viagra?

Viagra is a drug used to stimulate sexual desire and treat premature ejaculation and erectile dysfunction. It works by expanding blood vessels that supply the penis, allowing better blood flow and helping to keep an erection longer. Many people therefore often take Viagra before having sex.

What are the ingredients of Viagra?

Viagra has the main ingredient, cindenafil, which is a drug that helps treat erectile dysfunction. It is classified as a vasodilator, which causes the blood vessels in the penis to expand more.

Mechanism of action of Viagra

The mechanism of action of Viagra can be summarized as follows:

1. When sexually stimulated, nitric oxide is released from blood vessel cells in the penis.
2. Nitric oxide stimulates the enzyme Cyclic Guanosine Monophosphate – cGMP to work more, causing the smooth muscles of blood vessels to relax.
3. Sildenafil, the active ingredient in Viagra, works by inhibiting the enzyme Phosphodiesterase Type 5 – PDE5.
4. PDE5 is an enzyme that breaks down cGMP, allowing it to remain active and last longer.
5. When cGMP acts to relax the smooth muscles of blood vessels in the penis for a longer period of time, it results in better blood flow, allowing the penis to become erect and remain erect for a longer period of time.

Side effects and precautions for using Viagra

Viagra, if used excessively or incorrectly, including in people with chronic diseases, can cause dangerous side effects. Therefore, you should not buy it and take it yourself without consulting a doctor. What are the side effects of Viagra on the body? Let’s see.

Common common side effects

In general, there are common but harmless side effects, such as:

• Headache is a common side effect, which may be due to dilation of blood vessels in the brain, allowing more blood to flow, or it may be due to individual sensitivity to the drug. Headaches are usually mild and go away on their own within 1-2 hours.
• Nausea is common, especially during the initial period of use, and may be due to contractions of the intestinal muscles due to the vasodilatory effect. 
• Dizziness is caused by increased blood flow to the brain, which can cause some dizziness, but it is usually mild and goes away on its own.

Serious side effects

There are also serious side effects that can be dangerous. The following side effects are common:

• An erection lasting more than 4 hours is the most serious side effect of Viagra, as it can cause penile tissue injury. If this happens, see your doctor for immediate treatment.
• Severe chest pain and difficulty breathing may be symptoms of a heart attack, as the drug works to dilate all blood vessels, including the coronary arteries. 
• Temporary or permanent loss of vision is caused by the effects of dilating blood vessels to the retina, causing abnormal blood flow. It may cause blurred vision or double vision. If symptoms occur, stop taking the drug immediately.

Contraindications and precautions for using Viagra

Contraindications and precautions for using Viagra are as follows:

1. Patients who are taking certain heart medications, such as nitrates, which are blood vessel dilators, should not take Viagra together because the two drugs will potentiate each other and affect the heart’s blood vessels, causing heart failure and death.
2. Patients with eye diseases such as idiopathic cataracts and retinal degeneration, as they are at risk of losing their vision.
3. Viagra should be used with caution in older adults as they are at higher risk of side effects than younger adults.
4. People with abnormal kidney and liver function or other diseases may need to adjust the dosage. And in the group of people with various chronic diseases, it is recommended to avoid using Viagra. 
5. For some dietary supplements or herbal medicines that claim to help with sexual performance, be careful, as they may contain unspecified sildenafil compounds, which can be dangerous if taken together with Viagra.

If you don’t use Viagra, what are some ways to help?

For those who have problems with sexual dysfunction, premature ejaculation, or erectile dysfunction, it is not always necessary to use medicine. You can use other methods to solve this problem. We recommend the following:

1. Change your daily lifestyle, such as exercising regularly to increase blood circulation. 
2. Avoid smoking and drinking alcohol. 
3. Keep your weight within normal limits. 
4. Manage stress properly and get enough sleep.
5. Take herbal supplements such as Korean ginseng, Cordyceps, black ginger, and others that help increase energy and sexual performance.
6. Avoid foods that impair sexual performance, such as fried foods such as French fries, fried chicken, and fried tofu. These are often high in saturated fat and trans fat, which are bad for your heart and blood vessels. 
7. Exercising the muscles around your buttocks frequently will help improve your sexual performance. Doing it regularly every day will give you very satisfactory results.