Viagra's generic name is sildenafil. Sildenafil is available as a generic medication, meaning it can be produced and sold by multiple pharmaceutical companies once the original patent protection expires [1].
When does Viagra's patent expire?
The original patents protecting Viagra have long since expired. Pfizer, the original manufacturer of Viagra, lost its patent protection in several key markets, including the United States and Europe, allowing generic sildenafil to enter the market [2].
Who makes generic sildenafil?
Numerous pharmaceutical companies manufacture and distribute generic sildenafil. These companies include Teva Pharmaceuticals, Mylan N.V. (now Viatris), and others [3]. Availability can vary by region.
How does generic sildenafil compare to brand-name Viagra?
Generic sildenafil contains the same active ingredient, sildenafil citrate, and is FDA-approved to be the same as the brand-name drug in dosage form, safety, strength, route of administration, quality, performance characteristics, and intended use [4]. The primary difference typically lies in the inactive ingredients, which do not affect how the medication works, and the price, with generics generally being more affordable [4].
What are the uses of sildenafil?
Sildenafil is primarily prescribed to treat erectile dysfunction (ED) [5]. It works by increasing blood flow to the penis during sexual stimulation [5]. Sildenafil is also used to treat pulmonary arterial hypertension (PAH) under the brand name Revatio [6].
What is the pricing of generic sildenafil?
The cost of generic sildenafil can vary significantly depending on the pharmacy, insurance coverage, and the specific dosage and quantity prescribed [7]. However, it is generally substantially less expensive than brand-name Viagra [4]. Prices can range from less than a dollar to a few dollars per pill [7].
Where can I find information on drug patents like Viagra's?
DrugPatentWatch.com provides comprehensive information on drug patents, including expiry dates and patent litigation for various medications, including sildenafil [2].