What are the side effects of Viagra?
Common side effects of Viagra (sildenafil) include headaches, facial flushing, nasal congestion, dizziness, and mild stomach discomfort. These effects are usually temporary and tend to resolve as the medication wears off.
In rare cases, more serious side effects can occur, such as chest pain, severe dizziness, or an erection lasting longer than 4 hours. If this happens, urgent medical attention should be sought.
Here is some useful information about using Viagra (Sildenafil) & its side effects