Ginkgo
For TD [2], EPS [2], age related cognitive decline [2], GAD [3]. May help vascular depression.
EPS
Vitamin B6
Improves mood, PMDD, and treats side effects of lithium/antipsychotics (tremor, hyperprolactin, akathisia, EPS, TD)
Amantadine
Similar to ketamine. Treats TD [2] and irritability in TBI [1]. Last-line secret-weapon for bipolar/unipolar depression, OCD, cognition, DMDD, autism, weight-loss, fatigue.