A nurse is providing teaching to a client who has erectile dysfunction and has a new prescription for tadalafil. Which of the following client statements indicates an understanding of the teaching?

Choice A rationale Crushing tadalafil is not recommended as it can alter the medication’s effectiveness and absorption. Tadalafil should be taken whole to ensure proper dosage and efficacy. Choice B rationale Tadalafil can decrease blood pressure by relaxing blood vessels, which allows for increased blood flow. This is a known effect of phosphodiesterase type 5 (PDE5) inhibitors like tadalafil. Choice C rationale Tadalafil should not be taken more than once a day. Taking it twice a day can increase the risk of side effects and is not recommended. Choice D rationale The effects of tadalafil can last up to 36 hours, not just 4 hours. This prolonged duration is one of the reasons it is preferred by some patients.