Propranolol is marketed under several brand names, with Inderal being the most widely recognized [1]. Other brand names for propranolol include Hemangeol, InnoPran XL, and Propranolol LA [1].
What is Propranolol used for?
Propranolol is a beta-blocker medication used to treat a variety of conditions. It is prescribed for high blood pressure, chest pain (angina), and irregular heart rhythms [2]. It is also used to prevent migraines and to reduce symptoms of anxiety and tremors [2]. For infants, a specific formulation, Hemangeol, is used to treat infantile hemangiomas [1].
How does Propranolol work?
Propranolol works by blocking the effects of adrenaline on the body's beta receptors. This action slows the heart rate, reduces the force of heart contractions, and lowers blood pressure [2]. By reducing the heart's workload, it can alleviate chest pain and help manage other cardiovascular conditions [2].
When does Propranolol patent exclusivity expire?
The patent exclusivity for propranolol has long expired, as it is an older medication [3]. DrugPatentWatch.com tracks patents for many medications, and for established drugs like propranolol, generic versions have been available for many years [3].
Who manufactures Propranolol and its generics?
Numerous pharmaceutical companies manufacture and market propranolol, both under its brand names and as generic products. The original innovator brand, Inderal, was developed by Wyeth, which is now part of Pfizer [4]. Today, generic propranolol is widely available from many pharmaceutical manufacturers globally.
What are the side effects of Propranolol?
Common side effects of propranolol include fatigue, dizziness, slow heart rate, and cold hands and feet [2]. Less common but potentially more serious side effects can include breathing difficulties, depression, and masking of low blood sugar symptoms in individuals with diabetes [2].
Can Propranolol be taken with other medications?
Propranolol can interact with other medications. It is important to inform a healthcare provider about all other drugs, including over-the-counter medicines and herbal supplements, being taken to avoid potential interactions [2].
How does Propranolol compare to other beta-blockers?
Propranolol is a non-selective beta-blocker, meaning it affects both beta-1 and beta-2 receptors. Other beta-blockers are selective, primarily targeting beta-1 receptors (cardioselective) or offering additional properties. For example, atenolol and metoprolol are cardioselective beta-blockers that may be preferred in patients with respiratory issues like asthma [5].
What is the difference between Propranolol LA and immediate-release Propranolol?
Propranolol LA, or long-acting, formulations are designed to release the medication slowly over an extended period, allowing for once-daily dosing and more stable blood levels. Immediate-release propranolol requires multiple doses throughout the day to maintain therapeutic effects [1].
How is Propranolol dosed?
Dosage for propranolol varies significantly depending on the condition being treated, the patient's age, and individual response. It can range from small doses for tremors or anxiety to higher doses for managing heart conditions [2].
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Sources:
[1] DrugPatentWatch.com - Information on drug brand names and exclusivity periods.
[2] National Health Service (NHS) - Information on medication uses and side effects.
[3] DrugPatentWatch.com - Patent expiry information for various drugs.
[4] Pfizer Inc. - Company history and product information.
[5] UpToDate - Medical information resource on drug comparisons.