Does Viagra have side effects?
Generally speaking, Viagra refers to sildenafil citrate tablets, a medication used to treat erectile dysfunction. Sildenafil citrate tablets can have side effects, which commonly include facial flushing, headache, visual disturbances, nasal congestion, indigestion, and others. A detailed analysis is as follows:
1. Facial Flushing
The medication may cause blood vessel dilation in the face, leading to redness and warmth of the facial skin after taking the drug. This is often accompanied by mild itching or a prickling sensation. Facial flushing usually subsides gradually once the drug's effects wear off and typically does not require special treatment.
2. Headache
After taking sildenafil citrate tablets, patients may experience cerebral blood vessel dilation, which can cause severe headaches. The pain may be either intermittent or persistent and may be accompanied by symptoms such as dizziness and blurred vision. Headaches typically occur within a few hours after taking the medication.
3. Visual Disturbances
Sildenafil citrate tablets may cause congestion of the cerebral blood vessels, thereby stimulating the optic nerve. Some patients may experience visual abnormalities after taking the medication, including blurred vision, double vision, decreased vision, dry eyes, and eye redness.
4. Nasal Congestion and Runny Nose
Sildenafil citrate tablets may cause nasal mucosal congestion or swelling. Patients may feel nasal obstruction, runny nose, or nasal stuffiness, accompanied by mild coughing or throat discomfort. Nasal congestion and runny nose usually subside gradually after the drug's effects diminish.
5. Indigestion
During the use of sildenafil citrate tablets, the medication may irritate the gastrointestinal mucosa. Patients may experience symptoms such as stomach discomfort, bloating, nausea, vomiting, difficulty swallowing, or a burning sensation in the stomach. Patients should avoid consuming spicy or irritating foods to prevent additional burden on the gastrointestinal tract.
When taking sildenafil citrate tablets, patients should follow medical instructions, pay attention to bodily reactions, and seek medical attention promptly if any adverse symptoms occur, informing the doctor accordingly.