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 interactions			Cochrans test	Total P value
Statement	% of correct answer	% of incorrect answer
Ginkgo can increase the risk of bleeding when combined with warfarin	95.3 (222)	4.7 (11)	X^2= 307.356	<0.05 and 0.001
St John’s wort may increase blood digoxin level	21.5 (50)	78.5 (183)
Valerian should be used cautiously in patients using benzodiazepines	82.8 (193)	17.2 (40)
Maca- root should be avoided in patients with goiter	77.3 (180)	22.7 (53)
Ginseng may increase blood pressure	88.8 (207)	11.2 (26)

p<0.05, p <0.001.