A 65-year-old patient diagnosed with hypertension is prescribed lisinopril, an ACE inhibitor, as part of their treatment regimen. During a follow-up visit, the nurse notes that the patient reports experiencing persistent dry cough and mild dizziness. The nurse recognizes that these symptoms are common adverse effects of lisinopril. In addition, the nurse must consider the contraindications associated with this medication. One important contraindication to remember is the concurrent use of _____________, as it can lead to an increased risk of renal impairment and hyperkalemia. It is essential for the nurse to educate the patient about the importance of avoiding this class of medications and to monitor potassium levels regularly.