May 21, 2026

Top News
Tocilizumab Induces Remission in Treatment-Resistant Depression
Diagnosis & Treatment
Low-Dose Lithium Shows Promise for Mild Cognitive Impairment - Pharmacy Times

Low-dose lithium demonstrates potential therapeutic benefit for mild cognitive impairment, suggesting a possible off-label or repurposing opportunity for dementia-related behavioral symptoms.

Drug Development
Compass Pathways Eyes Q4 FDA Filing for Psilocybin Depression Drug After Phase 3 Wins - Yahoo Finance

Compass Pathways plans to file for FDA approval of a psilocybin-based treatment for depression following successful Phase 3 trial results, representing a significant development in psychedelic psychiatry.

Diagnosis & Treatment
Targeting inflammation in depression: a proof-of-concept worth following

A proof-of-concept RCT shows that a single dose of the anti-inflammatory agent tocilizumab cleared inflammation in depressed patients, though its clinical efficacy on depressive symptoms requires further investigation.

Diagnosis & Treatment
Precision diagnosis model for treatment-resistant depression integrating serum metabolomics and clinical risk factors

A dual-modal diagnostic model combining serum metabolomics and clinical risk factors demonstrates high accuracy for identifying treatment-resistant depression, offering insights into metabolic mechanisms rather than immediate prescribing changes.

Drug Development
“Intranasal clozapine sol-gel formulation induces an antipsychotic effect at a fraction of a comparable oral therapeutic dose”

Preclinical rat data demonstrate that an intranasal clozapine sol-gel formulation achieves antipsychotic efficacy at 3.5% of the oral dose with reduced peripheral exposure and metabolic side effects, suggesting a promising delivery method for further clinical investigation.

Clinical Pearls

Bite-sized clinical takeaways from today's literature (sources from May 16 – May 21)

  • Consider a sequential regimen of ketamine followed by low-dose buprenorphine to extend the duration of anti-suicidal effects beyond the typical one-week window.
  • Monitor hepatic function closely in patients prescribed psychotropic medications, as antidepressant-induced liver injury remains a significant clinical risk.
  • Utilize tocilizumab as a potential repurposing option for treatment-resistant depression, particularly in patients with evidence of systemic inflammation.
  • Advise patients that switching to salt-nicotine e-cigarettes can triple their odds of successful smoking cessation compared to traditional methods.
  • Investigate mirtazapine as a repurposing candidate for methamphetamine use disorder, leveraging its existing antidepressant profile for substance use treatment.
  • Recognize that preclinical data suggests KarXT's mechanism involves gut microbiota modulation, which may help explain its gastrointestinal side effect profile.
  • Consider low-dose lithium as a potential off-label therapeutic option for managing behavioral symptoms associated with mild cognitive impairment.
  • Review seasonal prescribing patterns for hypnotics and sedatives, noting that rates peak in winter and decline with increased daylight exposure.
  • Exercise caution with psilocybin administration due to rare but serious adverse events such as sudden loss of consciousness.
  • Evaluate the olanzapine-samidorphan combination for schizophrenia patients who require antipsychotic efficacy but struggle with weight gain or metabolic side effects.

Diagnosis & Treatment 2

Arthritis Drug Rescues Hard-to-Treat Depression

The anti-inflammatory drug tocilizumab, approved for arthritis, has been shown to induce remission in patients with treatment-resistant depression, suggesting a potential repurposing opportunity for this psychopharmacologic indication.

Seasonal and gender-specific patterns in prescriptions for hypnotic and sedative medications in primary care

This retrospective study identifies significant seasonal and gender-specific variations in primary care prescribing of hypnotic and sedative medications, with rates peaking in winter and declining with increased daylight exposure.

Drug Development 2

Jupiter Neurosciences stock surges on MDMA therapy licensing deal - Investing.com

Jupiter Neurosciences stock rises following a licensing deal for MDMA therapy, highlighting ongoing commercial developments in psychedelic psychiatry.

Potential of CTX-1301 for ADHD - Psychiatric Times

The article discusses the potential of CTX-1301, a novel therapeutic candidate, for the treatment of ADHD, representing ongoing drug development in psychiatric pharmacology.

Podcast Summary 1

Bipolar Disorder With Mixed Features: Recognition and Treatment, With Roger McIntyre, MD, at APA - Psychiatric Times

This podcast summary covers the recognition and treatment of bipolar disorder with mixed features, featuring expert commentary from Roger McIntyre, MD.

Mechanism of Action 2

Single psilocybin dose may relieve depression within days - Earth.com

Research indicates that a single dose of psilocybin may provide rapid relief from depression symptoms within days, highlighting its potential as a fast-acting therapeutic agent for major depressive disorder.

Xanomeline-trospium reverses phencyclidine-induced cognitive deficits through modulation of the gut microbiota-brain axis in mice

Preclinical data suggest KarXT (xanomeline-trospium) reverses cognitive deficits in a schizophrenia mouse model via gut microbiota modulation, offering potential insights into its mechanism and gastrointestinal side effects.

Clinical Pearl 2

Pilot trial suggests anti-inflammatory drug could help difficult-to-treat depression

A pilot randomized controlled trial published in JAMA Psychiatry suggests that an anti-inflammatory immunotherapy may be a promising treatment option for difficult-to-treat depression.

Antidepressant-Induced Liver Injury: A Review for Clinicians - Psychiatry Online

This review addresses the risk of antidepressant-induced liver injury, providing clinicians with essential information for monitoring and managing hepatic adverse effects in patients prescribed psychotropic medications.

Policy & Regulation 1

Vertical Pharmaceuticals Partners with Medfinder to Help Patients Find Relexxii® During Ongoing ADHD Medication Shortages - Morningstar

Vertical Pharmaceuticals partners with Medfinder to help patients locate Relexxii (methylphenidate) during ongoing ADHD medication shortages.

Journal Article 1

Patterns of psychotropic drug dispensation in Portugal amidst the COVID-19 pandemic and beyond - Nature

This study analyzes psychotropic dispensing patterns in Portugal during and after the COVID-19 pandemic, providing epidemiological data on prescribing trends rather than direct clinical pharmacology guidance.

Substance Use 3

Salt-Nicotine E-Cigarettes Triple Smoking Cessation Odds

A randomized trial indicates that switching to salt-nicotine e-cigarettes triples smoking cessation odds, offering a relevant pharmacotherapy option for substance use disorder treatment.

Antidepressant May Reduce Methamphetamine Use

Mirtazapine is being investigated as a potential treatment for methamphetamine use disorder, highlighting a repurposing opportunity for an existing antidepressant.

Sudden Loss of Consciousness Following Psilocybin Ingestion - Psychiatry Online

Case report of sudden loss of consciousness following psilocybin ingestion, highlighting a rare but serious adverse event associated with psychedelic use.