Sedarel, opinions and questions

Hello.
He takes the antidepressants prefaxine 75 mg and pregabalin 3 times a day at 75 mg. Recently, I've been under a lot of stress due to difficult family situations. As the emotions began to subside, anxiety and panic attacks began to set in. Does this mean that the pills no longer work for me, they are too weak? Is it the body's reaction to the emotions experienced and severe stress? I take validol on an ad hoc basis in situations where this fear appears. Thanks in advance for your help