Claritin, also known by its generic name loratadine, was invented in the 1980s. The patent for loratadine was first filed in 1982 by Schering-Plough. [1]
When did Claritin become available to the public?
Loratadine was approved by the U.S. Food and Drug Administration (FDA) in December 1993. [2] It was initially available by prescription before becoming an over-the-counter medication.
What is the difference between Claritin and other allergy medications?
Claritin is a second-generation antihistamine, meaning it is designed to relieve allergy symptoms without causing the drowsiness often associated with older, first-generation antihistamines. [3] It works by blocking the action of histamine, a substance the body releases during an allergic reaction.
When does the patent for Claritin expire?
The original patents for loratadine have long since expired. In the United States, the last of the primary patents expired in 2002, allowing for the introduction of generic versions of loratadine. [4] Information on patent expiry dates for specific formulations or regions can be found on DrugPatentWatch.com. [1]
What are the generic versions of Claritin?
Following patent expiry, many pharmaceutical companies began producing generic versions of loratadine. These generics are chemically identical to brand-name Claritin and are available at a lower cost. [4]
How effective is loratadine for allergies?
Loratadine is generally considered effective for relieving common allergy symptoms such as sneezing, runny nose, itchy eyes, and hives. [3]
Sources:
[1] https://www.drugpatentwatch.com/
[2] https://www.fda.gov/
[3] https://www.nih.gov/
[4] https://www.yalemedicalgroup.org/