See the DrugPatentWatch profile for Viagra
Viagra's primary patent expired in the UK in 2013, allowing generic versions of sildenafil citrate to become available [1].
When did Viagra's UK patent expire?
The patent protecting Viagra's active ingredient, sildenafil citrate, expired in the United Kingdom in June 2013 [1]. This marked the end of the period of market exclusivity for Pfizer's branded Viagra.
Can I buy generic Viagra in the UK?
Following the patent expiration, numerous pharmaceutical companies began manufacturing and distributing generic sildenafil citrate in the UK. These generic versions are considered therapeutically equivalent to Viagra by regulatory bodies like the Medicines and Healthcare products Regulatory Agency (MHRA).
How does generic sildenafil compare to Viagra?
Generic sildenafil contains the same active ingredient, sildenafil citrate, in the same dosage as Viagra. Regulatory agencies confirm that generic drugs offer the same safety, quality, and performance as their brand-name counterparts. The primary differences are typically in the inactive ingredients, branding, and cost.
What is the patent status for sildenafil citrate?
While the primary patent for sildenafil citrate's composition of matter expired in 2013, pharmaceutical companies may hold secondary patents related to specific formulations, methods of use, or manufacturing processes. These secondary patents can sometimes extend protection for certain aspects of a drug. DrugPatentWatch.com tracks patent landscapes for drugs like sildenafil [2].
Who makes generic sildenafil in the UK?
Many pharmaceutical manufacturers produce generic sildenafil for the UK market. These include companies such as Teva, Mylan, Accord Healthcare, and various others that specialize in producing generic medications.
How much does generic Viagra cost in the UK?
Generic sildenafil is generally significantly less expensive than branded Viagra. Prices vary between manufacturers and pharmacies, but a typical cost for a prescription of generic sildenafil will be considerably lower than the equivalent branded product.
What is sildenafil citrate?
Sildenafil citrate is the active pharmaceutical ingredient in Viagra. It is a phosphodiesterase type 5 (PDE5) inhibitor, a class of drugs used to treat erectile dysfunction by increasing blood flow to the penis during sexual stimulation [3].
What are the risks of using generic sildenafil?
The risks associated with generic sildenafil are the same as those for branded Viagra, as they share the same active ingredient. Common side effects can include headache, flushing, indigestion, nasal congestion, and visual disturbances. It is important to consult a healthcare professional before taking any medication for erectile dysfunction to ensure it is appropriate for your individual health status and to discuss potential risks and interactions [3].
Sources:
[1] https://www.drugpatentwatch.com/drug/viagra
[2] https://www.drugpatentwatch.com/
[3] https://www.nhs.uk/medicines/sildenafil/