Table 5. Reported intracellular concentrations of the activated (tri-phosphate) form of the nucleoside and nucleotide analogs, measured in peripheral blood mononuclear cells in patients.

Activated Analog	Intracellular Concentration Range (mM)
3TC-TP	35.4–51.2
FTC(−)-TP	0.40–4.50
AZT-TP	0.84–1.2
ABC-TP	0.04–0.75
TDF-TP	0.27–0.39
ddA-TP	0.013–0.078
d4T-TP	0.016–0.082
Acyclovir-TP	Not available
ddC-TP	Not available