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In August 2020, the U.S. Food and Drug Administration (FDA) became aware of nitrosamine impurities in certain samples of rifampin. [61] The FDA and manufacturers are investigating the origin of these impurities in rifampin, and the agency is developing testing methods for regulators and industry to detect the 1-methyl-4-nitrosopiperazine (MNP ...
The rifamycin group includes the classic rifamycin drugs as well as the rifamycin derivatives rifampicin (or rifampin), rifabutin, rifapentine, rifalazil and rifaximin. Rifamycin, sold under the trade name Aemcolo, is approved in the United States for treatment of travelers' diarrhea in some circumstances.
Rifapentine, sold under the brand name Priftin, is an antibiotic used in the treatment of tuberculosis. [2] In active tuberculosis it is used together with other antituberculosis medications. [2]
A fourth-class post office in the United States, from 1864 to the 1970s, was a post office at which the postmaster received the lowest tier of annual commission income from postage stamps. [2] Prior to the early 20th century, fourth-class post offices were the backbone of the U.S. postal system.
Rural Free Delivery vehicle (from Popular Mechanics, September 1905) Rural Free Delivery (RFD), since 1906 officially rural delivery, is a program of the United States Post Office Department to deliver mail directly to rural destinations. The program began in the late 19th century.
Rifaximin, sold under the brand name Xifaxan among others, is a non-absorbable, broad-spectrum antibiotic mainly used to treat travelers' diarrhea.It is based on the rifamycin antibiotics family.
Traditional Vietnamese medicine (Y học Cổ truyền Việt Nam), also known as Southern Herbology (Thuốc Nam) is a traditional medicine practiced by Vietnamese people. It is influenced by traditional Chinese medicine.
Government office of Sơn Trung Commune, Hương Sơn district, Hà Tĩnh province In 1957, South Vietnamese President Ngo Dinh Diem launched a counter-insurgency project known as Strategic Hamlet Program , in order to isolate the rural Vietnamese from contact with and influence by the communist National Liberation Front (NLF) .