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NITD008 is an antiviral drug classified as an
adenosine analog Adenosine (symbol A) is an organic compound that occurs widely in nature in the form of diverse derivatives. The molecule consists of an adenine attached to a ribose via a β-N9-glycosidic bond. Adenosine is one of the four nucleoside building b ...
(a type of
nucleoside analog Nucleoside analogues are nucleosides which contain a nucleic acid analogue and a sugar. Nucleotide analogs are nucleotides which contain a nucleic acid analogue, a sugar, and a phosphate group with one to three phosphates. Nucleoside and nucl ...
). It was developed as a potential treatment for
flavivirus ''Flavivirus'' is a genus of positive-strand RNA viruses in the family ''Flaviviridae''. The genus includes the West Nile virus, dengue virus, tick-borne encephalitis virus, yellow fever virus, Zika virus and several other viruses which may cau ...
infections and shows broad spectrum antiviral activity against many related viruses such as dengue virus,
West Nile virus West Nile virus (WNV) is a single-stranded RNA virus that causes West Nile fever. It is a member of the family '' Flaviviridae'', from the genus '' Flavivirus'', which also contains the Zika virus, dengue virus, and yellow fever virus. The v ...
,
yellow fever virus Yellow fever is a viral disease of typically short duration. In most cases, symptoms include fever, chills, loss of appetite, nausea, muscle pains – particularly in the back – and headaches. Symptoms typically improve within five days. In ...
, Powassan virus,
hepatitis C virus The hepatitis C virus (HCV) is a small (55–65 nm in size), enveloped, positive-sense single-stranded RNA virus of the family '' Flaviviridae''. The hepatitis C virus is the cause of hepatitis C and some cancers such as liver cancer (hepatoc ...
, Kyasanur Forest disease virus, Omsk hemorrhagic fever virus, and
Zika virus ''Zika virus'' (ZIKV; pronounced or ) is a member of the virus family ''Flaviviridae''. It is spread by daytime-active '' Aedes'' mosquitoes, such as '' A. aegypti'' and '' A. albopictus''. Its name comes from the Ziika Forest of Uganda, w ...
. However, NITD008 proved too toxic in pre-clinical animal testing to be suitable for human trials, but it continues to be used in research to find improved treatments for emerging viral diseases.


See also

* Favipiravir, a drug approved by China, Germany, Indonesia, Iran, Japan, Thailand, and Turkey for treating COVID-19 patients * MK-608, a drug with a similar structure *
Remdesivir Remdesivir, sold under the brand name Veklury, Text was copied from this source which is © European Medicines Agency. Reproduction is authorized provided the source is acknowledged. is a broad-spectrum antiviral medication developed by the ...
, FDA approved antiviral drug with a similar structure *
Ribavirin Ribavirin, also known as tribavirin, is an antiviral medication used to treat RSV infection, hepatitis C and some viral hemorrhagic fevers. For hepatitis C, it is used in combination with other medications such as simeprevir, sofosbuvir, pe ...
, another antiviral drug with teratogenic side effects that was patented by Merck in 1971 and approved by the FDA in 1986


References

{{RNA antivirals Anti–RNA virus drugs Nucleosides Pyrrolopyrimidines Ethynyl compounds