Having my pdoc and therapist at the same place saved me from a really severe lithium toxicity. My pdoc was only there a few days a month but had a relationship with my therapist. I had been very sick for months but I was throwing up so much my lithium level always came back ok but I wouldn't have had 4 days of pills in my system. Anyway my therapist noticed I couldn't walk in a straight line and some other symptoms of toxicity and called her. She had me go in for yet another level and this time I managed to keep enough days of meds in me that we got a real level and it wasn't good. Just on the border of needing hospitalization. So he saved me from getting really sick and from having to be in the hospital.

My pdoc isn't there now but it still is good that they have a relationship; if he calls her she knows it is serious and trusts his judgment and so the one or two times per year that happens she responds quickly and usually I am saved from severe symptoms.

I hope it works for you.