Creatine
Augments SSRIs in women only [3]. Improves memory, especially in older adults [2]. Long-COVID [3].
Non-controlled
Melatonin
Hypnotic with particular benefits in elderly and children with developmental disorders [1], and antipsychotic weight loss [1].
Sarcosine
For depression [3], and positive/negative symptoms of schizophrenia [2], oppositionality in ADHD
l-Theanine
Extract of green tea. Depression [3], sleep [2], schizophrenia (neg/anx) [2], OCD [3], cognition [3].
Ginkgo
For TD [2], EPS [2], age related cognitive decline [2], GAD [3]. May help vascular depression.
Micronutrients
These megavitamins supply nutrients missing from the diet for children/adults with ADHD [2], DMDD [1], Autism [2].