Viagra usually refers to sildenafil citrate tablets, tadalafil tablets, etc. Viagra has certain side effects, but the side effects are small. After taking the medicine, the blood vessels will dilate, which can lead to relatively insufficient blood supply, causing systemic vascular reactions, and may also stimulate the gastrointestinal tract, causing gastrointestinal reactions, and may also cause nervous system reactions, abnormal eye reactions, cardiovascular system reactions, etc.
1. Systemic vascular reactions:
While Viagra dilates the cavernous blood vessels, it will also affect other blood vessels in the body. Therefore, after taking the medicine, due to the dilation of systemic blood vessels, symptoms such as dizziness, palpitations, and flushing may occur;
2. Gastrointestinal reactions:
Some people will stimulate the gastrointestinal tract after taking Viagra, causing symptoms such as nausea and vomiting, especially long-term and frequent use, the chance of adverse gastrointestinal reactions will increase. If you have chronic gastritis or gastrointestinal diseases such as peptic ulcer, you are more likely to experience nausea and vomiting after taking the medicine;
3. Nervous system reaction:
After Viagra enters the human body, it may affect the brain nerves and blood vessels, causing mild migraines. In severe cases, it may also cause sleep difficulties and transient ischemic attacks;
4. Abnormal eye reactions:
After taking Viagra, some people may dilate the blood vessels in the eyes, and experience blurred vision, eye pain, swollen eyelids, conjunctival congestion and other symptoms, which generally recover on their own after stopping the drug;
5. Cardiovascular system reaction:
After taking Viagra, some people may dilate the cardiovascular system, resulting in adverse reactions such as increased heart rate, arrhythmia, and hypotension. In severe cases, chest pain, back pain and other symptoms may occur, and medical treatment should be sought in time.
Viagra can increase the erection hardness of the penis, which is helpful for patients with erectile dysfunction and premature ejaculation. Although there are certain side effects, it can improve erectile dysfunction if used appropriately by people who have no contraindications to medication. If you experience obvious discomfort after taking Viagra, seek medical attention immediately.
