Question: is this a 2) strong advice, 1) weak advice 0) no advice?

Therefore, treatment includes anticonvulsants (Bone, Critchley, & Buggy, 2002) and TCAs (Mercadante, Arcuri, Tirelli, Villari, & Casuccio, 2002; Rogers, 1989), which are known to have clinical efficacy. 
user
This is no advice
assistant