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. 2005 Oct;49(10):4197–4202. doi: 10.1128/AAC.49.10.4197-4202.2005

TABLE 3.

Interaction of SSG with IFN-αa

IC CI with the following SSG/IFN-α ratio:
1:5 1:20
50% 0.60 0.60
75% 0.55 0.39
90% 0.52 0.26
a

CalcuSyn analysis provides CI values to determine potential drug additivity. The results showed that SSG combined with IFN-α is synergistic, with CI values ranging from 0.32 to 0.60. The CI determines the degree of the interaction of drugs; e.g., CIs of <1, 1, and >1 are indicative of synergistic, additive, and antagonistic effects, respectively.