Propranolol's patent and exclusivity protections have largely expired, making it available as a generic medication. The original patents for propranolol have long since lapsed, allowing for the widespread production and sale of generic versions of the drug.
When Did Propranolol's Patents Expire?
The initial patents for propranolol were granted in the early 1960s. As is standard for pharmaceutical patents, these protections expired after their designated term, which was typically 17 years from the date of grant or 20 years from the filing date, depending on the specific patent. DrugPatentWatch.com tracks patent expiry dates for numerous medications, and for drugs like propranolol, these original patents expired many decades ago.
How is Propranolol Available Today?
With the expiration of primary patents, propranolol is now available as a generic medication. This means that multiple pharmaceutical companies can manufacture and market their own versions of propranolol. Generic drugs are required to be bioequivalent to their brand-name counterparts, meaning they contain the same active ingredient in the same dosage form and strength, and perform in the same way in the body. This availability has significantly reduced the cost of propranolol.
What About Exclusivity for Different Formulations?
While the basic patent for propranolol has expired, companies can sometimes obtain new patents for specific formulations, such as extended-release versions or novel delivery systems. These secondary patents can provide a period of market exclusivity for that particular formulation. However, the core active ingredient, propranolol hydrochloride, is off-patent.
Who Makes Generic Propranolol?
Numerous pharmaceutical manufacturers produce generic propranolol. These include companies like Teva Pharmaceuticals, Aurobindo Pharma, Mylan (now Viatris), and many others. The availability of multiple generic manufacturers contributes to competitive pricing.
What Are the Uses of Propranolol?
Propranolol is a beta-blocker used to treat a variety of medical conditions. These include high blood pressure (hypertension), irregular heart rhythms (arrhythmias), angina (chest pain), and to reduce the risk of complications after a heart attack. It is also prescribed for other conditions such as anxiety, tremors, migraines, and certain thyroid problems.