The original patent for propranolol expired in December 1984 [1].
How long was propranolol protected by its patent?
Propranolol was initially patented in 1962 and was granted patent protection for 17 years, leading to its expiration in 1984 [1].
What is propranolol used for?
Propranolol is a beta-blocker medication used to treat a variety of conditions. These include high blood pressure, chest pain (angina), irregular heart rhythms, and tremors [2]. It is also prescribed after a heart attack to improve survival [2]. Additionally, propranolol can be used to manage symptoms of anxiety, such as rapid heartbeat, and to prevent migraine headaches [2].
Who developed propranolol?
Propranolol was developed by Imperial Chemical Industries (ICI) in the late 1950s [3].
Are there different formulations of propranolol?
Yes, propranolol is available in different formulations, including immediate-release and extended-release versions, to suit various treatment needs [2]. It is typically taken orally, but can also be administered intravenously [2].