Which drug noted on the patient's medication reconciliation will cause the nurse to caution the patient with arthritis against using feverfew?

Feverfew is an herbal remedy commonly used for various conditions, including arthritis pain and migraine prevention. However, it can have blood-thinning effects similar to those of anticoagulants. Therefore, when a patient is on anticoagulant therapy, there is a significant risk of increased bleeding if feverfew is taken concurrently. The nurse must caution the patient against using feverfew to avoid potential complications associated with excessive anticoagulation, such as bleeding disorders.

Involving antibiotics, antidepressants, or nonsteroidal anti-inflammatory drugs does not carry the same concern regarding blood thinning as using occult feverfew alongside anticoagulants. While there are interactions to consider with other medications, the direct concern with feverfew stems from its interaction with anticoagulants, making this the most critical consideration when advising a patient with arthritis who is also on such medication.