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International Journal of Phytomedicine and Phytotherapy

Table 3 Summary of studies on herbal-antimalarial drug interactions in normal animals (mice, rats and rabbits)

From: Antimalarial herbal drugs: a review of their interactions with conventional antimalarial drugs

S/no

Medicinal plant

Conventional antimalarial drug

Animal

Interaction effect

Reference

1

Aqueous root extract of Cryptolepis sanguinolenta (36 g/kg)

ART (150 mg/kg)

Rats

Cryptolepis sanguinolenta decreases the effectiveness of ART

[35]

2

VA (250 and 500 mg/kg)

Dihydroartemisinin (2 mg/kg)

Rats

↓in AUC; ↑in Ka

[36]

3

Leaf of Heinsia crinata (200 mg/kg)

CQ (15 mg/kg)

Rats

Extract ↓ bioavailability of CQ

[37]

4

Aqueous leaf extract of Azadirachta indica

CQ (Dose not specified)

Rabbit

Extract ↑ & ↓ in pharmacokinetic parameters

[38]

5

MAMA herbal antimalarial decoction (120 mg/kg)

AQ (10 mg/kg)

Mice

Decoction ↑ the activity of AQ and its metabolites

[39]

6

Ethanolic leaf extract of Lasianthera Africana (200 mg/kg)

CQ (15 mg/kg)

Rats.

Extract ↑ & ↓ in pharmacokinetic parameters

[40]

7

Ethanolic leaf extract of Vernonia amygdalina

CQ (10 mg/kg)

Rats

Extract ↑ & ↓ in pharmacokinetic parameters

[41]

8

Grapefruit juice (4 ml/kg)

CQ (100 mg/kg)

Mice

↑ plasma concentration of CQ

[42]

9

Gnetum africana (200 mg/kg)

CQ (15 mg/kg)

Rats

↑ & ↓ in some pharmacokinetic parameters

[24]

  1. Vernonia amygdalina (VA); Artesunate (ART); Plasmodium berghei (P. berghei); Chloroquine (CQ). Amodiaquine (AQ). ↓ (Decreased activity), ↑ (Increased activity)