Generic Viagra contains the same active ingredient as brand-name Viagra: sildenafil citrate. This means it works in precisely the same way.
Sildenafil citrate inhibits an enzyme called phosphodiesterase-5 (PDE5). By blocking PDE5, it increases blood flow to the penis, facilitating an erection when sexually stimulated. This process is crucial for achieving and maintaining an erection.
The key difference between brand-name Viagra and its generic counterpart lies solely in the price. Generic manufacturers produce the drug after the patent on the brand-name drug expires, leading to significantly lower costs for consumers.
Here’s a table summarizing the key similarities and differences:
| Active Ingredient | Sildenafil Citrate | Sildenafil Citrate |
| Mechanism of Action | PDE5 inhibition | PDE5 inhibition |
| Effectiveness | High | Equivalent |
| Cost | High | Low |
Always consult your doctor before using any medication, including generic Viagra. They can help determine if it’s the right treatment for you and discuss potential side effects and interactions with other medications.


