Zidovudine belongs to a class of drugs known as nucleoside reverse transcriptase inhibitors-NRTIs. Zidovudine is phosphorylated to active metabolites that compete for incorporation into viral DNA. Zidovudine is used in pregnant women to prevent passing the HIV virus to the unborn baby. Zidovudine is used to slow the progression of disease in patients infected with HIV. Zidovudine Degradation impurity, Zidovudine Process impurity, Zidovudine Potential impurity, Zidovudine USP Related Compound, Zidovudine N-Nitroso impurity, Zidovudine nitrosamine impurity etc. are listed below