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Table 7 Combination effect of MEVT and AELN with DMA and ATV

From: Gas chromatography-mass spectrometry analysis, phytochemical screening and antiprotozoal effects of the methanolic Viola tricolor and acetonic Laurus nobilis extracts

Parasite

Drug combination

CI value

Degree of association

B. bovis

MEVT + DMA

1.200

Additive

AELN + DMA

5.742

Antagonism

MEVT + ATV

0.209

Synergism

AELN + ATV

0.822

Synergism

B. bigemina

MEVT + DMA

4.991

Antagonism

AELN + DMA

3.266

Antagonism

MEVT + ATV

0.273

Synergism

AELN + ATV

0.776

Synergism

B. divergens

MEVT + DMA

1.072

Additive

AELN + DMA

8.667

Antagonism

MEVT + ATV

0.304

Synergism

AELN + ATV

1.003

Additive

B. caballi

MEVT + DMA

0.989

Additive

AELN + DMA

0.947

Additive

MEVT + ATV

0.291

Synergism

AELN + ATV

0.392

Synergism

T. equi

MEVT + DMA

0.893

Additive

AELN + DMA

8.965

Antagonism

MEVT + ATV

0.844

Synergism

AELN + ATV

0.999

Additive

  1. MEVT methanolic extract of V. tricolor, AELN acetonic extract of L. nobilis, DMA diminazene aceturate, ATV atovaquone. CI denotes the combination index value