The nurse plans medication education for a client who receives a prescription for sildenafil (Viagra). What will the best plan by the nurse include?
1. Grapefruit juice will decrease the effects of sildenafil (Viagra).
2. You can take sildenafil (Viagra) anywhere from 1 to 6 hours before sex.
3. Be sure to take only one pill in a 24-hour period.
4. Sildenafil (Viagra) should be taken with food.
Correct Answer: 3
Rationale 1: Grapefruit juice can lead to increased, not decreased, levels of sildenafil (Viagra).
Rationale 2: The optimum time for administration is 1 hour before sex, but it can be taken up to 4 hours before sex.
Rationale 3: Taking only one pill in a 24-hour period is the recommended dosing for sildenafil (Viagra).
Rationale 4: Sildenafil (Viagra) should be taken on an empty stomach, not with food.
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