Is there any options left after clozapine fails

There are many, many options even after Clozapine fails.

There is a full list below, plus many people here are seeing success adding some supplements like Sarcosine and NAC, etc. which seem to target the same brain receptor as Clozapine - so another medication with the amino acids / supplements might be even more effective than Clozapine, without the Clozapine issues. See list of links below.

Sarcosine

D-Serine
N-Acetyl cysteine (NAC)
B-Vitamins
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