Rework the given text with different wording:
If patients need to stop taking abacavir, lamivudine or zidovudine, or need to take different doses because of problems with their kidneys, liver or blood, they will need to take medicines containing abacavir, lamivudine or zidovudine separately.
They should start taking medicinal products containing abacavir, lamivudine, zidovudine on its own, when the patient needs to stop taking abacavir, lamivudine, or zidovudine or another dose for kidney, liver or blood problems.