Evidence-Based Complementary and Alternative Medicine / 2018 / Article / Tab 3

Research Article

Community Pharmacists’ Knowledge, Attitudes, and Practice of Herbal Medicines in Asir Region, Kingdom of Saudi Arabia

Table 3

Pharmacists’ knowledge about the side effects, contraindications, and drug-herb interactions of selected herbal medicines (n=233).

Side effects, contraindications, and drug-herb interactionsCochrans testTotal P value
Statement% of correct answer% of incorrect answer

Ginkgo can increase the risk of bleeding when combined with warfarin95.3 (222)4.7 (11)X2= 307.356<0.05 and 0.001
St John’s wort may increase blood digoxin level21.5 (50)78.5 (183)
Valerian should be used cautiously in patients using benzodiazepines82.8 (193)17.2 (40)
Maca- root should be avoided in patients with goiter77.3 (180)22.7 (53)
Ginseng may increase blood pressure88.8 (207)11.2 (26)

p<0.05, p <0.001.

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