What are the side effects of Viagra (Sildenafil)?
Mar 19, 2025
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
In general, Viagra refers to Sildenafil Citrate Tablets, which are primarily used to treat male erectile dysfunction. Possible side effects include headache, facial flushing, indigestion, nasal congestion, and palpitations. Although this medication has certain therapeutic effects on male erectile dysfunction, it may also cause a series of side effects.
Generally, Viagra refers to sildenafil citrate tablets, primarily used for treating male erectile dysfunction. Its possible side effects include headache, facial flushing, indigestion, nasal congestion, palpitations, etc. It is recommended to use the medication as directed by a physician. A detailed explanation is as follows:
1. Headache
After entering the body, the medication may dilate blood vessels in the head, causing varying degrees of headache. The severity varies among individuals; some patients may experience only mild headaches, while others may suffer more severe symptoms that affect their daily life and work.
2. Facial Flushing
Sildenafil citrate tablets cause blood vessels to dilate. The face contains many sensitive blood vessels, which, when dilated, can lead to redness and warmth of the facial skin. This reaction usually occurs shortly after taking the medication and may last for several hours.
3. Indigestion
This medication may interfere with the normal functioning of the gastrointestinal tract, potentially affecting the secretion of digestive fluids or intestinal motility. Some users may experience symptoms of indigestion such as nausea, vomiting, stomach discomfort, or diarrhea, which can impact appetite and the ability to digest and absorb nutrients.
4. Nasal Congestion
Sildenafil citrate tablets may cause dilation of blood vessels inside the nasal passages, leading to nasal mucosal congestion and resulting in nasal blockage. This can impair normal nasal breathing function and may sometimes be accompanied by symptoms such as runny nose, causing discomfort to the patient.
5. Palpitations
The medication may exert certain stimulatory effects on the cardiovascular system, potentially increasing cardiac contractility or altering heart rate, thereby increasing the burden on the heart. Patients may experience symptoms such as rapid heartbeat or a sensation of palpitations.
Although this drug is effective in treating male erectile dysfunction, it may also cause a series of side effects. Therefore, it should be used strictly as directed by a physician. Patients should closely monitor their physical responses, and if any discomfort occurs, prompt medical attention is recommended.
