Erectile dysfunction (hereinafter referred to as ED) is a common disease in adult men. The incidence rate is 50% in middle-aged and elderly men, and 5%-10% in young men. As three "drugs" - Vigra, Cialis and Levitra - have entered the Chinese market, they have relieved the pain of many patients. Doctors pointed out that many people have many misunderstandings when using drugs. They should pay more attention when taking them to avoid causing damage to the body and affecting the effect.

Misunderstanding 1: Not understanding the contraindications of “*”

If taken at the same time as nitrates, commonly used drugs for cardiovascular diseases (such as nitroglycerin, angiotensin, etc.), it may significantly lower blood pressure and cause cardiovascular risks. Therefore, patients who have recently taken nitrates are strictly contraindicated in using " *". Moreover, sexual life itself consumes physical energy, so patients with cardiovascular disease whose heart function is in the decompensated stage, or patients with moderate to severe cardiovascular disease should not take "*" to try sexual life.

Myth 2: Blindly seeking to cure the root cause of the problem

It can only temporarily improve erectile function but cannot cure ED. Therefore, patients can only rely on taking medication when needed to have sex. In addition, "*" is not 100% effective, and the overall clinical effectiveness rate is about 80%. Patients with severe organic erectile dysfunction have poor response to oral drug treatment due to severe damage to the structure or nerve function of the corpus cavernosum of the penis. An artificial erection device needs to be surgically implanted to be effective.

Myth 3: Waiting for natural erection after taking "*"

Many people think that as long as they take the medicine, they will have an erection. In fact, this is not the case. There must be sufficient sexual stimulation after taking the medicine for the medicine to be effective. Because many patients do not know the characteristics of "*", they wait for an erection after taking the medicine, or they do not control the time of sexual life well, which affects the curative effect.

Myth 4: Lack of sense of time when taking "*"

"*" Like other drugs, it takes about 30-60 minutes for gastrointestinal absorption after oral administration, and the therapeutic effect lasts for more than 4 hours. The best time for sexual intercourse is 1-4 hours after taking the medicine. Many patients affect the curative effect due to poor timing.

Myth 5: Not understanding possible side effects

"*" has a mild vasodilatory effect on peripheral blood vessels. Sensitive patients (about 15%) may experience one-time facial flushing, mild headache, dizziness, nasal congestion or gastrointestinal reactions, which will not affect sexual life. It does not affect cardiovascular function. If you do not understand the possible side effects, if you experience mild side effects and feel nervous or anxious, the efficacy will be affected.