21.   Her drug regimen is so complicated that she wrote her dosages on an index card just to remember them.

22.   HIV-positive men neglect life-sustaining drug regimens.

23.   Increasing viral resistance remains a serious problem, forcing clinicians to switch drug regimens for their patients.

24.   Many experts now say that at least two new drugs should be used for initial anti-HIV treatment or when a switch is made from a failing drug regimen.

25.   Now many are much healthier, as long as they adhere to complicated drug regimens.

26.   Often it is because the person cannot tolerate the drug regimen.

27.   One possible solution to this problem is to intensify drug regimens, Ho said.

28.   Others favor waiting longer because of the difficulties in adhering to the rigorous drug regimens and the growing number of side effects.

29.   Only in this case, the drug regimen is initiated in the hours after suspected exposure, and months before a blood test can verify infection.

30.   Other AIDS researchers say it will not be possible, practically speaking, for patients to adhere religiously for decades to complex drug regimens.