An older adult wants to take ginkgo biloba, valsartan (Diovan), and hydrochlorothiazide for hypertension. He also takes an aspirin daily. Which of the following statements best reflects the advice his nurse should give him?
A) "Ginkgo biloba may cause postprandial hypotension in older adults."
B) "Ginkgo biloba has the potential to interact with hydrochlorothiazide."
C) "Ginkgo biloba can interact with valsartan, reducing its effectiveness."
D) "Ginkgo biloba taken with aspirin can potentially cause a drug interaction."
Ans: D
Medications that are likely to be affected by herbs are warfarin, insulin, aspirin, digoxin, cyclosporine, and ticlopidine. Ginkgo biloba has the potential to increase blood glucose levels in type 2 diabetes. Its use is contraindicated with monoamine oxidase inhibitors. It is not known to have any interaction with valsartan or hydrochlorothiazide.
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