Which medication would cause the nurse to caution a client who is using sildenafil (Viagra) for erectile dysfunction?
1. Progesterone (Prometrium)
2. Diltiazem (Verapamil)
3. Organic nitrates (Nitro-Dur)
4. Atenolol (Tenormin)
Correct Answer: 3
Rationale 1: Progesterone (Prometrium) is a male hormone.
Rationale 2: Diltiazem (Verapamil) is a calcium channel blocker.
Rationale 3: The most serious adverse effects with sildenafil occur in men who are concurrently taking organic nitrates (Nitro-Dur), drugs used in the therapy of angina.
Rationale 4: Atenolol (Tenormin) is a beta blocker.
Global Rationale: The most serious adverse effects with sildenafil occur in men who are concurrently taking organic nitrates (Nitro-Dur), drugs used in the therapy of angina. Progesterone (Prometrium) is a male hormone and safe to use. Diltiazem (Verapamil) is a calcium channel blocker and safe to use. Atenolol (Tenormin) is a beta blocker and safe to use.
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