The parent of a child who is being discharged from the clinic wants to know if there is a difference

The parent of a child who is being discharged from the clinic wants to know if there is a difference between Advil and ibuprofen, saying “I can buy ibuprofen over the counter at a cheaper price than the Advil that was ordered.” What is the nurse’s best response? 1. “Advil and ibuprofen are two different drugs with similar effects.” 2. “There is no difference between the two medications, so you should use whichever one is cheaper.” 3. “Similarities exist between the drugs, but you need to consult the physician about the specific order.” 4. “Ibuprofen is usually cheaper, so you should use it.”