before you do anything, I would read Dr Sydney Walkers book A dose of sanity.
I have come off meds before I found out the cause, and it will only make things worse.
Lets look at medications.
Firstly, Lithium is used to take uric acid out of the system for mania. So a low purine diet would helpand eating cherries. It is the same diet as for gout. my urine is definitely acidic. I understand there is a blood test that can be done.
Perrier water either does or did contain lithium. I have some at home.
Lithium was discovered by john cade who injected rats with urine of mental health patients and noticed high levels of uric acid, and used lithium to treat them.
Quetiapine works because of quinine and sulphur. It was the only one that worked for me, Lithium was too toxic. I went to africa before I got ill, as did a friend of mine who I met there. I bought some indian tonic water which contains quinine. And there are many sulphur containing foods. i e garlic and onions
Carbamazapine may be full of B vitamins amongst others so maybe a B complex supplement may help or brewers yeast and chromium.
There is a possibility of parasite infection. I use coconut, fennel and cloves on a daily basis to eliminate giardia.
All of this I have been able to do after using a pendulum, after reading jaqueline steincamps book m.e. it tested positive for purine found in wheat and mushrooms to organ meats and oily fish. to giardia and to malaria, to which I am now taking homeopathic remedy.
I have been looking for the reason I have been ill since 1992.
You need to eliminate the cause first.
I now think that being bipolar means that I am more susceptible to environmental concerns. I just want to be a well bipolar. I have to have an excellent diet and lifestyle in order to be well . I can't get away with it like most people. Eat right for your type by peter d amo helped me to identify foods which did not help. Being A rhesus negative I needed to be vegetarian.
The pendulum also helps me on a daily basis to what I need to stay well.
I hope this helps