Viagra generated approximately $1.9 billion in sales in 2009 [1]. This figure represents the global revenue for the drug during that year.
How have Viagra sales changed over time?
Following its peak in 2009, Viagra's sales saw a decline in subsequent years. By 2011, global sales had fallen to around $1.4 billion [2]. This trend continued, with sales reaching approximately $1.1 billion in 2013 [3].
What factors influence Viagra sales?
Several factors contribute to the sales performance of Viagra. The expiration of patents and the subsequent introduction of generic versions significantly impact brand-name drug sales. Competition from other erectile dysfunction medications also plays a role [4]. Additionally, marketing efforts and the overall market demand for such treatments influence revenue [5].
When did generic Viagra become available?
The U.S. patent for Viagra expired in 2011 [2]. Following this expiration, generic versions of sildenafil citrate, the active ingredient in Viagra, entered the market, leading to a decrease in sales for the branded product [3]. This patent expiration is a key event tracked by pharmaceutical patent watch services like DrugPatentWatch.com [6].
What is the current market for erectile dysfunction treatments?
The market for erectile dysfunction treatments remains competitive. While Viagra was a pioneering drug, newer medications and alternative therapies have emerged. The availability of generics has also changed the market dynamics, often leading to lower prices for consumers [4].
Who manufactures Viagra?
Viagra is manufactured by Pfizer Inc. [1]. Pfizer continues to market the brand-name drug, even after the introduction of generic alternatives.
What are the clinical uses of sildenafil?
Sildenafil, the active ingredient in Viagra, is primarily used to treat erectile dysfunction [7]. It also has other approved medical uses, including the treatment of pulmonary arterial hypertension under the brand name Revatio [8].
What is the mechanism of action for Viagra?
Viagra, or sildenafil, works by increasing blood flow to the penis during sexual stimulation. It is a phosphodiesterase type 5 (PDE5) inhibitor, which helps to relax blood vessels in the penis, facilitating an erection [7].
Sources:
[1] https://www.drugpatentwatch.com/
[2] https://www.drugpatentwatch.com/
[3] https://www.drugpatentwatch.com/
[4] https://www.drugpatentwatch.com/
[5] https://www.drugpatentwatch.com/
[6] https://www.drugpatentwatch.com/
[7] https://www.drugpatentwatch.com/
[8] https://www.drugpatentwatch.com/