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Transient Mood Elevation Without a Manic Switch: Goldenseal-Augmented Oral Glutamatergic Regimen in Bipolar Depression With Comorbid Obsessive-Compulsive Disorder (OCD).

  • 2026-02-24
  • Cureus 18(2)
    • Ngo Cheung

Study Design

Type
Case Report
Population
a 32-year-old man with bipolar depression and health-related ruminations
Methods
Single case report: patient added 600 mg goldenseal (CYP2D6 inhibitor) to his existing regimen of mood stabilisers (valproate, low-dose aripiprazole, pregabalin, and Deanxit) and an over-the-counter mix of dextromethorphan, piracetam, and L-glutamine.
Duration
ten days
Funding
Unclear
Treating bipolar depression that comes with obsessive, looping thoughts can be tricky because standard antidepressants often help only a little and can sometimes push the mood too high. In this report, we followed a 32-year-old man whose low mood and health-related ruminations lingered despite mood stabilisers (valproate, low-dose aripiprazole, pregabalin, and Deanxit). Hoping to copy some of ketamine's brain-circuit effects, he tried an over-the-counter mix of dextromethorphan, piracetam, and L-glutamine; the result was modest at best. Ten days after he added 600 mg of the herbal CYP2D6 inhibitor goldenseal, thought to slow the breakdown of dextromethorphan, he reported a clear lift in energy, mood, and work performance, with no signs of hypomania; the improvement faded when he stopped the herb and returned when he restarted it, and he had no side effects. Although this single experience cannot show cause and effect, it hints that short courses of a well-standardised botanical CYP2D6 inhibitor might prolong the benefit some patients get from oral dextromethorphan-based combinations, an idea that would need careful study, including drug-level monitoring and checks for mood switches.

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