Some time ago, Xiao Zhang cautiously came to the hospital for a check-up. Going to the hospital for a check-up should be an aboveboard matter, so why should he be cautious? Although he often sees advertisements for Viagra in the streets, Viagra is a medicine after all.

Some time ago, Xiao Zhang came to the hospital for a check-up cautiously. Going to the hospital for a check-up should be an aboveboard matter, so why should he be cautious? It turned out that he was a little embarrassed about the question he wanted to check.

Recently he found that the sex life between him and his wife was not going well. He heard from his friends that taking " Viagra " can solve this problem well. Although we often see advertisements for Viagra in the streets, Viagra is a medicine after all. He was worried that eating it would cause irreversible side effects, so he wanted to consult!

Will there be any side effects from taking Viagra? How to take it to get the most effect? let’s take a look!

1. Viagra is actually like this

I believe everyone is familiar with the Viagra advertisements in the streets. In fact, Viagra is also called Viagra, which is usually a blue pill.

The research on Viagra was actually an accident. When researchers were studying it, they did not think it could treat erectile dysfunction. The original intention of studying it was to treat angina pectoris . During the research, it was discovered that nitric oxide inhibits an enzyme called phosphodiesterase 5 in the human body.

This substance can dilate the cardiovascular system and increase blood flow, thereby reducing the occurrence of angina pectoris and other diseases. During the research process, after testing hundreds of compounds, he finally found a compound called sildenafil citrate, which is the main component of Viagra.

But something unexpected happened during the clinical trial phase. experimental data shows that although this substance has relatively small side effects and is relatively safe, the efficacy of this compound is very poor, and the effect when applied to patients with angina pectoris and hypertension is simply minimal.

Just when everyone thought the use of this drug was coming to an end, investigators discovered an interesting phenomenon. After taking sildenafil citrate, a middle-aged male patient with hypertension still had a soft spot for this drug even though his condition did not improve.

After asking, I found out that high blood pressure can be complicated by erectile dysfunction, but taking this medicine can "regain success". As a result, they changed the direction of drug research into striving for human sexual well-being, but what are the side effects of this acute-acting drug?

2. Side effects of Viagra

Before answering this question, let me first explain to you what side effects are. The side effect is physical discomfort after taking it that is not therapeutic. For example, when we take anti-inflammatory drugs and develop allergies, allergies are called drug side effects.

Viagra is a drug commonly used in urology clinics to treat penile erectile function. Its safety is relatively good. After all, its sales rank first in the world in treating this disease. shows that its effect is very good, but it also has side effects!

. Causes blood pressure to drop

Viagra lowers blood pressure by dilating blood vessels. If the patient suffers from heart disease and takes nitroglycerin and other blood vessel dilating drugs, it is very dangerous to take Viagra, so these two types of drugs must not be taken together.

2. Causes dizziness

Many people will feel dizzy after taking Viagra. This dizziness can usually be well relieved after taking the medicine for a few hours. At the same time, there is another situation that can cause dizziness after taking Viagra, and that is after drinking.

Viagra itself will lower blood pressure and accelerate heart rate . Drinking alcohol will also increase our heart rate. When this is superimposed, it will increase the load on the heart, leading to symptoms of dizziness.

3, blurred vision

American research scholar once published an article in the "Journal of Neuro-Ophthalmology". The article mentioned that seven patients aged 50-69 years developed non-arterial anterior ischemic optic neuropathy within 36 hours after taking sildenafil citrate to treat erectile dysfunction.

This was later confirmed by various studies. Therefore, the instructions for Viagra will note that visual abnormalities are among the adverse reactions with an incidence rate of 2%.

3. The best effect is to take it this way

Although Viagra has certain side effects, its therapeutic effect on male erections is undeniable. So how to take it for the best effect? Every medicine requires its own instructions. In many cases, the descriptions in the instructions are too brief, making it difficult for some friends to understand the usage and dosage.

For Viagra, the instructions say to take it as needed about an hour before intercourse. But it can be taken anytime between zero point five and four hours. So when is the best time to eat it? From the perspective of pharmacokinetics , it is recommended to take it one hour in advance on an empty stomach.

Because the drug effect reaches its peak one hour after taking the medicine, the drug concentration is highest at this time and the effect is best. But we all know that the effects of drugs vary from person to person, and not everyone can achieve the ideal state.

For example, some people may absorb the medicine well, and it may take effect in half an hour. Some people may have poor absorption, or may eat high-fat foods or drink alcohol while taking the medicine, which will delay the onset time and effect of the medicine.

In addition, Viagra is a short-acting drug, and its effect can be stable for about four hours. , so you can take it within 0.5 to four hours in advance according to your own situation.

For example, if you feel that the effect is not good if you go an hour in advance, you can go an hour and a half in advance next time. In this way, you can slowly adjust to a time that suits you.

Conclusion:

According to research data, many people take more doses of Viagra without authorization in order to achieve better effects. This is absolutely not advisable! is a three-part poison. For Viagra, its side effects are not small.

If you take it in an increased amount without authorization, the onset of side effects may reach a cumulative effect, which is very detrimental to our health! So if you have any problems, you still need to go to the hospital for medical examination and follow the doctor's advice to take medication!