I Saw My Psychiatrist Two Weeks Ago. I Was Honest

I saw my psychiatrist two weeks ago. I was honest about my plans for suicide, but also honest that I didn't have any immediate plans to follow through. He prescribed meds that he was late sending to the pharmacy. My impulsivity has increased and I came very close to following through on my impulses today. Ibguess my question is should I call him and let him know what's going on or should I wait and see if the prescription will help now that it's been filled (just filled today)?