Despite its ( ________ and safety in treating some of the most incapacitating ... ...

Despite its (1) ________ and safety in treating some of the most incapacitating forms of depression and anxiety, it has not been widely (2) _________.
Blank 1 Blank 2

usefulness

renounced

ineffectuality

accepted

potency

commenced


(A) usefulness
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Text Completions: Lesson Set

 
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Despite its ( ________ and safety in treating some of the most incapacitating ... ... 
Posted: 07/04/2015 22:11
'Potency' also seems a positive choice. Isn't it?