A patient at the clinic informs the nurse during an examination that he has been taking comfrey as an anticancer agent. The patient asks if there is any reason why this remedy should not be taken
The nurse responds accurately when telling the patient which of the following about comfrey? a. It should not be taken with coffee or other caffeinated beverages.
b. It may induce veno-occlusive disease.
c. It does not contain a carcinogenic substance.
d. It is associated with liver toxicity.
D
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A No contraindications exist for taking it with coffee or other caffeinated beverages. Ephedra should be avoided with the consumption of caffeine.
B Comfrey does not induce veno-occlusive disease.
C Comfrey may contain a carcinogenic substance.
D Comfrey is an herb used for an anticancer effect. It contains a large number of toxic hepatotoxic pyrrolizidine alkaloids that can cause cancer.
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