Pharmacology Which of the following anti-HIV drug should never be given as rechallenge once history of producing allergic reaction with drug is known? A Lamivudine B Abacavir C Zidovudine D Nelfinavir 💡 Explanation Which of the following anti-HIV drug should never be given as rechallenge once history of producing allergic reaction with drug is known? ✓ Correct Answer: B. Abacavir