Viagra and Vigore are both medications used to treat erectile dysfunction (ED) [1]. Viagra is the brand name for sildenafil, while Vigore is a generic version containing the same active ingredient [1].
What is the active ingredient in Viagra and Vigore?
Both Viagra and Vigore contain sildenafil as their active ingredient [1]. Sildenafil is a phosphodiesterase type 5 (PDE5) inhibitor that works by increasing blood flow to the penis during sexual stimulation [2].
How do Viagra and Vigore work?
Sildenafil in both medications helps relax the muscles in the penis and increases blood flow, making it easier to achieve and maintain an erection [2]. This effect is triggered by sexual arousal [2].
Are there differences between Viagra and Vigore?
As Vigore is a generic version of Viagra, it contains the same active ingredient at the same dosage [1]. The primary difference typically lies in the manufacturer, branding, and potentially the inactive ingredients, which do not affect the drug's efficacy or safety [1]. Generic medications are often less expensive than their brand-name counterparts [3].
When does the patent for sildenafil expire?
The original patents for sildenafil have expired, allowing for the production of generic versions like Vigore [4].
Where can I find more information on drug patents?
DrugPatentWatch.com provides information on drug patents and exclusivity periods for various medications [4].