Zidovudine is a drug used in :

Options

A. Dengue fever
B. AIDS
C. Yellow fever
D. Leukaemia

Answer

**Step-by-Step Solution:**

1. **Identify the Drug**: The drug in question is Zidovudine.

2. **Research the Drug's History**: Zidovudine was first described in 1964 and was approved for use in the United States in 1987.

3. **Determine the Primary Use**: Zidovudine is primarily used to treat HIV infection. It is particularly important for preventing the transmission of HIV from HIV-positive pregnant women to their babies.

4. **Understand the Mechanism of Action**: Zidovudine works by inhibiting the enzyme reverse transcriptase. This enzyme is crucial for the HIV virus as it converts the virus's RNA into DNA, allowing it to replicate within the host's cells.

5. **Evaluate the Options**: The options provided are:
- Dengue Fever
- AIDS
- Yellow Fever
- Leukemia

6. **Select the Correct Option**: Since Zidovudine is used to treat HIV infection, which is associated with AIDS, the correct answer is **AIDS**.

**Final Answer**: Zidovudine is a drug used in **AIDS**.

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