The new drug Prozac and the old one Elavil are about equally effective in treating various forms of depression, although patients on the newer drug may have slightly fewer side effects. Thus, revenue from the sale of the new drug is going to far exceed the revenue from the sale of the old drug.
All of the following statements weaken the conclusion of the argument above, EXCEPT:
(A) Elavil is also used as a powerful anti-emetic medicine.
(B) The Drug Control Authorities in six states have refused to allow the sale of Prozac till some more tests are carried out.
(C) Some side effects of Elavil are common to Prozac as well.
(D) Prozac is not recommended as an anti-depressant for diabetics and heart patients.
(E) The unit sale price of Elavil is higher than that of Prozac.
The new drug Prozac and the old one Elavil are about equally effective in treating various forms of depression, although patients on the newer drug may have slightly fewer side effects. Thus, revenue from the sale of the new drug is going to far exceed the revenue from the sale of the old drug.
All of the following statements weaken the conclusion of the argument above, EXCEPT:
To weaken the conclusion would be to find reasons why Prozac revenue would be lower or why Elavil revenue would be higher.
(A) Elavil is also used as a powerful anti-emetic medicine. This other use of Elavil might give it an advantage over Prozac and increase its sales.
(B) The Drug Control Authorities in six states have refused to allow the sale of Prozac till some more tests are carried out.
In states where Prozac sales are prohibited, Elavil would be sold.
(C) Some side effects of Elavil are common to Prozac as well. From the stimulus we know that they're similar in efficacy and only differ in side effects. If Elavil's side effects are common to Prozac's, it presents no advantage over Prozac. Moreover, the stimulus says that the side effects of Prozac are fewer, thus giving it a potentially greater advantage over Elavil (strengthening the argument).
(D) Prozac is not recommended as an anti-depressant for diabetics and heart patients. Prozac would be a health hazard for some, thus Elavil would be sold.
(E) The unit sale price of Elavil is higher than that of Prozac. A higher price could generate greater revenue than Prozac.