Valerian
Natural hypnotic and anxiolytic, safe in elderly.
Non-controlled
Diphenhydramine
Although over the counter, the prescription version (hydroxyzine) is safer with fewer anticholinergic risks.
Buspirone
Treats anxiety (GAD). Augments in depression but only if anxious. Also improves sexual dysf, bruxism, irritability, PMDD
Lithium
Best long-term outcomes in bipolar (I or II) and recurrent depression. Prevents suicide. Treats mania, bp-depression and augments antidepressants.
Celecoxib
[Celebrex] NSAID for treatment-resistant unipolar and bipolar depression [3], works better if inflammation [2]. Well-tolerated short term, but long-term risks.
Acamprosate
[Campral] Well tolerated but low efficacy for alcohol use disorder. May make WD symptoms less aversive.
Disulfiram
(Antabuse) Treats alcoholism by raising the chemical responsible for hangovers. Very effective if patient takes it.
Naltrexone
[Vivitrol] Opioid blocker treats alcohol and opioid use disorders (and, in combination with bupropion, meth). May help gambling addiciton and antipsychotic weight gain. Inj or oral.