Which drug is used to treat HIV/AIDS?

Correct option is D

Ans. (d) Zidovudine
Sol. Zidovudine (AZT) is an antiretroviral medication used to treat HIV/AIDS. It belongs to the class of nucleoside reverse transcriptase inhibitors (NRTIs), which block HIV replication.
Explanation of each option:
· (a) Ampicillin – Antibiotic used for bacterial infections, not effective against viruses like HIV.
· (b) Dexamethasone – Steroid used to reduce inflammation, not antiviral.
· (c) Streptomycin – Antibiotic used to treat tuberculosis and other bacterial infections.
· (d) Zidovudine – Correct. Specifically used in managing HIV infection.