Will 45mg dose of Mirtazapine increase my severe anxiety symptoms. Higher norepinephrine?

Question

I have a one off use substance(High potency THC) induced severe anxiety disorder. Extreme symptoms for over 5 months. On 30mg(3 weeks) Remeron and 5-7.5mg valium daily. Minor relief and Dr wants to up Rem to 45mg then 60mg. I'm hypersensitive to exercise,weak tea etc

Answer 1

That should be fine, but why mirtazepine? SSRIs like sertraline are first-line treatment for anxiety disorders.