How does the azt (zidovudine) program work if you have hiv?

There is no "azt (zidovudine) program." azt (zidovudine) is a drug that is no longer widely used, as it has been replaced by a number of easier, safer, and more effective drugs that, when used in combination, stop the HIV virus from replicating and infecting new cells.

These leads to improvement in immune function and a much lower risk of illness and death.