Erectile dysfunction (ED) affects millions of men worldwide, and one of the most well-known treatments is the blue pill—Viagra. But did you know that Viagra is actually a brand name for the active ingredient sildenafil citrate? In this blog, we’ll break down what sildenafil is, how Viagra works, the differences between the brand and generic options, and everything else you need to know before choosing a pill for ED treatment.
What Is Sildenafil?
Sildenafil citrate is a medication that belongs to a group of drugs called PDE5 inhibitors. It was originally developed to treat heart conditions, but researchers soon discovered that it had a strong effect on improving erections in men.
Generic Name: Sildenafil Citrate
Brand Name: Viagra (by Pfizer)
Available Strengths: 25 mg, 50 mg, 100 mg tablets
Purpose: To help men achieve and maintain an erection when sexually aroused
Sildenafil works by relaxing blood vessels in the penis, allowing more blood to flow during sexual stimulation.
What Is Viagra?
Viagra is the most popular brand name for sildenafil citrate. It was approved by the FDA in 1998 and quickly became the most recognized pill for erectile dysfunction.
Many people use the term “Viagra” and “sildenafil” interchangeably, but here’s the difference:
Viagra = branded pill made by Pfizer
Sildenafil = generic version made by different manufacturers
Both contain the same active ingredient and work in the same way.
How Do Sildenafil and Viagra Pills Work?
When a man is sexually aroused, nitric oxide is released in the penis, which stimulates an enzyme that increases blood flow. PDE5 inhibitors like sildenafil block the enzyme that restricts blood flow, making it easier to get and keep an erection.
Onset of Action: 30–60 minutes
Duration: About 4–6 hours
Best Taken: On an empty stomach for faster results
Differences Between Viagra and Generic Sildenafil
Feature | Viagra (Brand) | Sildenafil (Generic) |
---|---|---|
Active Ingredient | Sildenafil Citrate | Sildenafil Citrate |
Manufacturer | Pfizer | Multiple companies |
Cost | Higher (brand premium) | Lower (generic versions) |
Appearance | Blue, diamond-shaped pill | Varies by company (white, blue, round, etc.) |
Effectiveness | Same as generic | Same as brand |
How Long Do Sildenafil and Viagra Pills Last?
Both Viagra and generic sildenafil work for about 4 to 6 hours, though some men may feel effects slightly longer. They don’t cause constant erections, but rather make it easier to achieve an erection when sexually stimulated.
Side Effects
Like all medications, sildenafil and Viagra pills can cause side effects. Most are mild and temporary.
Common Side Effects:
Headache
Flushing
Nasal congestion
Indigestion
Dizziness
Less Common Side Effects:
Vision changes (seeing blue tints)
Muscle pain
Prolonged erection (priapism – requires medical attention)
Who Should Not Take Sildenafil or Viagra?
You should avoid sildenafil/Viagra if you:
Take nitrate medications (for chest pain)
Have serious heart conditions
Have uncontrolled blood pressure problems
Have been advised by a doctor to avoid sexual activity
Always consult your healthcare provider before starting ED medication.
Cost: Viagra vs. Sildenafil
Viagra (brand): Can be very expensive, often $60+ per pill without insurance.
Sildenafil (generic): Much more affordable, as low as $1–$5 per pill depending on the pharmacy and quantity.
For most men, generic sildenafil is a cost-effective option since it provides the same benefits at a fraction of the cost.
Are There Combo Pills?
Some manufacturers produce combination pills that include sildenafil with other active ingredients (like dapoxetine, used for premature ejaculation). These are not the same as standard Viagra but may help men dealing with both ED and premature ejaculation. Always check with a doctor before considering combo pills.
Final Thoughts
Both Viagra and generic sildenafil pills are effective, safe, and widely used treatments for erectile dysfunction. The main difference is cost and branding. Viagra is the original, iconic blue pill, while generic sildenafil offers the same results at a lower price.
If you’re considering treatment for ED, speak to your doctor to see whether Viagra, sildenafil, or another ED pill like Cialis (Tadalafil) or Levitra (Vardenafil) might be the best choice for you.