May 03, 2026

Top News
New Study Reveals Ketamine’s Opioid Receptor Mechanism for Rapid Antidepressant Effects
Diagnosis & Treatment
Lithium not working? Large-scale study highlights favorable treatment strategies for bipolar disorder - Medical Xpress

A large-scale study identifies favorable treatment strategies for bipolar disorder patients who do not respond to lithium, offering clinical guidance for alternative pharmacotherapy.

Policy & Regulation
FDA approves 1st non-antipsychotic medication for agitation in Alzheimer's disease - AOL.com

The FDA has approved the first non-antipsychotic medication for treating agitation associated with Alzheimer's disease, marking a significant shift in pharmacologic management for this behavioral symptom.

Policy & Regulation
FDA approves 1st non-antipsychotic medication for agitation in Alzheimer's disease - ABC News - Breaking News, Latest News and Videos

The FDA has approved the first non-antipsychotic medication for treating agitation associated with Alzheimer's disease, marking a significant shift in pharmacological management for this behavioral symptom.

Policy & Regulation
FDA Approves First Non-Antipsychotic Drug for Alzheimer's Agitation - MedPage Today

The FDA has approved the first non-antipsychotic medication for the treatment of agitation associated with Alzheimer's disease, offering a new prescribing option for this behavioral symptom.

Mechanism of Action
How Scientists Cracked the Ketamine Code for Depression

Researchers identified a specific opioid receptor pathway and receptor cross-talk as the mechanism driving ketamine's rapid antidepressant effects.

Clinical Pearls

Bite-sized clinical takeaways from today's literature (sources from Aug 22 – May 02)

  • Prescribe Auvelity (dextromethorphan/bupropion) as a first-line non-antipsychotic alternative for agitation in Alzheimer's disease to mitigate the metabolic and extrapyramidal risks associated with typical antipsychotics.
  • Leverage the newly approved indication for Auvelity to offer patients with Alzheimer's-related agitation a pharmacologic option with a distinct safety profile compared to traditional antipsychotics.
  • Consider the identified opioid receptor cross-talk mechanism when managing patients with treatment-resistant depression, as it may inform the development or selection of novel rapid-acting antidepressants beyond standard ketamine protocols.
  • Monitor for potential regulatory changes in your jurisdiction regarding ketamine therapy, as states like Texas are implementing tighter rules that may affect off-label prescribing practices and clinic operations.
  • Utilize recent large-scale data on lithium non-responders in bipolar disorder to guide the selection of alternative pharmacotherapies earlier in the treatment course for patients who fail initial mood stabilizer trials.
  • Evaluate the risks and benefits of polypharmacy during pregnancy by reviewing current data on the association between multiple non-opioid psychotropic co-exposures and short-term neonatal outcomes.
  • Recognize that Auvelity is now indicated for agitation in Alzheimer's disease, expanding its utility beyond major depressive disorder and providing a targeted option for behavioral symptoms in dementia.
  • Stay informed about the clinical trial data for inhaled DMT in Major Depressive Disorder, as emerging efficacy results may soon influence the landscape of rapid-acting antidepressant treatments.
  • Approach the use of probiotics like PB-18 for mild to moderate depression with caution, recognizing that dietary supplements currently lack the robust regulatory oversight and standardized dosing of FDA-approved psychotropics.
  • Apply the knowledge of ketamine's specific mechanism of action to better counsel patients on the neurobiological basis of its rapid antidepressant effects and the rationale for its use in treatment-resistant cases.

Diagnosis & Treatment 3

Auvelity becomes first non-antipsychotic approved for Alzheimer’s agitation - Clinical Trials Arena

FDA approval of Auvelity (dextromethorphan-bupropion) as the first non-antipsychotic treatment for agitation associated with Alzheimer's disease, offering a new pharmacologic option with a different safety profile than typical antipsychotics.

PB-18 Probiotic for Mild to Moderate Depression

A clinical trial is recruiting to evaluate the efficacy of the PB-18 probiotic as a dietary supplement for mild to moderate depression.

The impact of the number of non-opioid psychotropic medications and their co-exposures during pregnancy on short-term outcomes in full-term neonates | Scientific Reports - Nature

This study examines the association between the number of non-opioid psychotropic medications and co-exposures during pregnancy and short-term neonatal outcomes, providing data relevant to prescribing psychotropics in pregnancy.

Policy & Regulation 2

FDA approval for Alzheimer's agitation drug; Esperion goes private in $1.1B deal

The FDA has approved Auvelity (dextromethorphan/bupropion) for the treatment of agitation associated with Alzheimer's disease, expanding its indication beyond major depressive disorder.

Texas considers tighter rules for ketamine therapy as use grows for mental health care - KVII

Texas is considering tighter regulatory rules for ketamine therapy as its use for mental health care expands, representing a significant policy shift affecting prescribing practices for this off-label psychotropic treatment.

Mechanism of Action 1

Reverse Engineering Ketamine’s Effects May Lead to New Antidepressants - WCM Newsroom

Research into the mechanism of ketamine's antidepressant effects aims to develop novel therapeutics for treatment-resistant depression.

Drug Development 2

Reverse engineering ketamine's effects may lead to new antidepressants

Researchers at Weill Cornell Medicine have reverse-engineered ketamine's antidepressant effects to identify novel therapeutic strategies for treatment-resistant depression.

Inhaled DMT for Major Depressive Disorder

A clinical trial is recruiting participants to evaluate the efficacy of inhaled N,N-Dimethyltryptamine (DMT) for the treatment of Major Depressive Disorder.