Which of the following DECREASES the anticoagulant effect of
warfarin?
a) Garlic
b) Glucosamine
c) Echinacea
d) Evening primrose oil
e) St John’s wort
Answer: e
Explanation
St John’s wort is a herbal remedy used for earaches and depression. It
contains around
ten active ingredients. It is an enzyme inducer of cytochrome P450
and can therefore
increase the metabolism and decrease the effect of warfarin. All
of the other four herbal
remedies have some level of evidence to support an increase in
anticoagulant activity
or contribute towards anticoagulation.
No comments:
Post a Comment