Viagra, or sildenafil citrate, treats erectile dysfunction (ED) by increasing blood flow to the penis. It’s a phosphodiesterase-5 (PDE5) inhibitor, meaning it blocks an enzyme that restricts blood vessel dilation.
How Viagra Works
When sexually stimulated, nitric oxide is released, relaxing the muscles in blood vessels. This allows increased blood flow, leading to an erection. Viagra enhances this process.
- Viagra doesn’t directly cause erections; sexual stimulation is necessary. The effect typically lasts for 4-5 hours. Dosage varies; your doctor will determine the appropriate amount.
Important Considerations
Before taking Viagra, discuss your health history with your doctor. Certain conditions, such as heart problems or low blood pressure, may interact negatively.
Avoid alcohol consumption while using Viagra, as it can exacerbate side effects. Common side effects include headache, flushing, nasal congestion, and upset stomach. These are usually mild and temporary. Do not take Viagra with nitrates, as this combination can be dangerous. Consult your doctor immediately if you experience chest pain, dizziness, or prolonged erection (priapism).
Alternative Treatments
Other ED treatments include Cialis, Levitra, injections, vacuum devices, and penile implants. Your doctor can help you decide which option is best for you.
