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Feb 22 8 tweets 2 min read Read on X
Approximately 1 in 9 U.S. children have been diagnosed with ADHD, yet traditional stimulant medications often fall short in efficacy and tolerability. (CHADD, 2021)

Recent advancements have introduced novel therapies targeting multiple neurotransmitter systems, expanding treatment options and potentially improving outcomes. (Neurolaunch, 2023)

Here are 4 emerging treatments that could improve ADHD management by offering alternatives to stimulants and addressing broader neurochemical pathways 🧵👇Image
The Cortico-Striatal-Thalamo-Cortical (CSTC) Loop & ADHD

ADHD is linked to dopaminergic & noradrenergic dysfunction in CSTC circuits, affecting:

- Attention

- Impulse control

- Executive function

Targeting these circuits is key to optimising treatment strategies.
1. Viloxazine (Qelbree) – A serotonin-norepinephrine modulating agent (SNMA)

- Increases serotonin in the prefrontal cortex

- Modulates norepinephrine & dopamine

- FDA-approved (2021) for ages 6-17

📌 Effective for inattention & impulsivity but carries a black box warning for suicidality.

💡 Psych Scene Tip: Consider Viloxazine for stimulant non-responders, but monitor closely for mood changes.

(Source: Yu et al., 2020)
2. Azstarys (Serdexmethylphenidate + Dexmethylphenidate) – A next-gen stimulant

- 70% prodrug (SDX), 30% active dexmethylphenidate

- Longer duration than standard methylphenidate

- FDA-approved (2021) for ages 6+

📌 Designed for once-daily dosing with smoother onset & offset.

💡 Psych Scene Tip: Azstarys provides stimulant benefits with reduced rebound effects—consider for patients needing smoother coverage.

(Source: AZSTARYS Prescribing Information, 2021)
3. Mazindol – A noradrenaline & dopamine reuptake inhibitor (NDRI)

- Originally developed for obesity, now repurposed for ADHD

- Modulates serotonin, orexin, & histamine

- Lower abuse potential than stimulants

📌 Promising for adults & treatment-resistant ADHD.

💡 Psych Scene Tip: Mazindol’s lower abuse risk makes it a potential option for ADHD patients with a history of substance use disorder.

(Source: Wigal et al., 2018)
4. Centanafadine – A triple reuptake inhibitor (noradrenaline > dopamine > serotonin)

- Increases noradrenaline & dopamine by 300-400%

- Significant symptom reduction by week 1

- Still in clinical trials, but promising for adult ADHD

📌 A potential non-stimulant alternative to current treatments.

💡 Psych Scene Tip: Centanafadine’s rapid onset could benefit patients who need faster symptom relief than standard non-stimulants.

(Source: Wigal et al., 2020)
What This Means for ADHD Treatment

✅ Broader mechanisms beyond dopamine
✅ Better tolerability vs. traditional stimulants
✅ Options for stimulant non-responders

Want to go deeper into ADHD psychopharmacology?
Explore the neurobiology of ADHD, stimulant vs. non-stimulant, & prescribing considerations in our expert-led course, “Neuroscience and Advanced Psychopharmacology of ADHD – A Comprehensive Guide” on The Academy.

psychscene.co/4gTqTjq

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More from @psycheureka

Feb 21
Postpartum psychosis affects 1-2 per 1000 births. 72% of cases emerge within 2 weeks postpartum (Bergink et al., 2016).

If misdiagnosed, it can lead to infanticide or suicide.

Here’s how to recognise, differentiate, and manage it effectively. 🧵👇 Image
What is Postpartum Psychosis?

It’s a severe psychiatric disorder occurring post-birth, characterised by:

🔹 Acute onset: Symptoms develop over hours to days.

🔹 Rapid mood & cognitive shifts: Mania, depression, confusion.

🔹 Psychotic symptoms: Delusions, hallucinations, disorganised behaviour.

🔹 Severe risk of harm: Suicide, infanticide, neglect.

🚨 72% of cases occur within 2 weeks postpartum—early recognition is crucial!
The “Kaleidoscopic” Presentation

Postpartum psychosis symptoms shift rapidly—hourly changes are common.

🔹 Delirium-like: Confusion, disorientation, derealisation.

🔹 Mania/Agitation: Irritability, impulsivity, restlessness.

🔹 Psychotic Symptoms: Bizarre delusions, childbirth-related hallucinations.

🔹 High risk: Suicidal thoughts, intrusive thoughts of harm.

🚨 Hourly reassessment is crucial!Image
Read 8 tweets
Feb 20
Fasting triggers neurobiological processes that support brain health and mental health.

It shifts metabolism, activates autophagy, and increases brain-derived neurotrophic factor (BDNF)—mechanisms linked to cognitive function, mood regulation, and neuroprotection...

Here’s what clinicians need to know about its impact on the brain and mental health. 🧵👇Image
The Science Of The Metabolic Switch

Fasting shifts brain metabolism from glucose to ketones, activating pathways that regulate synaptic plasticity, inflammation, and oxidative stress.

This switch increases:

1️⃣ BDNF

2️⃣Mitochondrial biogenesis

3️⃣ Synaptic plasticity

Which are the keys for cognition and emotional regulation.
The Flip-Flop Model of Intermittent Metabolic Switching

Neurons adapt bidirectionally. 

Alternating fasting (stress resistance) and feeding (growth & repair) optimise brain function.

📌 This cycle influences synaptic activity, neurogenesis, and neurotrophic factor signalling—key processes disrupted in psychiatric and neurodegenerative disorders.Image
Read 9 tweets
Feb 20
Does ADHD and OCD stem from the same neural circuitry?

Despite their opposing clinical features, ADHD and OCD share frontostriatal circuit dysfunction, suggesting a neurobiological overlap rather than entirely distinct conditions. (Cabarkapa et al., 2019)

Let’s dive in. 🧵⬇️ Image
ADHD vs OCD

● ADHD: Impulsivity, inattention, disinhibition.
● OCD: Compulsivity, cognitive rigidity, overcontrol.
● Both impact executive function and self-regulation, but in different ways.
🔹 ADHD → Hypoactivity in frontostriatal pathways → impulsivity, distractibility.
🔹 OCD → Hyperactivity in the same circuits → rigid thinking, compulsions.

Opposing mechanisms, yet a shared neural foundation.
Read 5 tweets
Feb 18
Clinical trials reveal that some antidepressants are over 100% more effective than placebo, while others barely outperform it.

The largest meta-analysis (Cipriani et al., 2018) compared 21 antidepressants in 116,477 patients, revealing striking differences in efficacy and tolerability.

Here’s what the study shows 🧵👇Image
For response rates (≥50% symptom reduction), these were the top performers:

- Amitriptyline
- Mirtazapine
- Duloxetine
- Venlafaxine
- Escitalopram

These consistently outperformed others.

Note: Just because a drug ranks high in efficacy doesn’t mean it’s the best choice for every patient. Prescribing should consider symptom severity, patient history, and tolerability.
The Numbers Behind Antidepressant’s Efficacy

Odds ratios (OR) provide a clearer picture.

Amitriptyline: OR = 2.13 (113% higher odds vs. placebo)
Reboxetine: OR = 1.37 (37% higher odds)

All drugs beat the placebo, but not equally.

Higher OR = greater efficacy. Image
Read 10 tweets
Feb 17
Cognitive symptoms in major depressive disorder (MDD) often persist even after mood improves, affecting memory, processing speed, and executive function.

Vortioxetine has been investigated for its potential pro-cognitive effects, independent of its antidepressant properties (McIntyre et al., 2016).

Here’s a review of the mechanisms and clinical findings. 🧵👇Image
Pharmacological Profile & Multimodal Mechanism

Vortioxetine is a serotonin modulator and stimulator with a multimodal mechanism:

● SERT inhibition (~50%) → Increases synaptic serotonin with a lower risk of sexual dysfunction vs SSRIs (Adamo et al., 2021).

● 5-HT1A Agonism → Facilitates serotonergic transmission.

● 5-HT1B Partial Agonism → Enhances dopamine, noradrenaline, and histamine.

● 5-HT3 & 5-HT7 Antagonism → May contribute to cognitive benefits.
What Does the Research Show?

🔹 Meta-analysis (McIntyre et al., 2016): Vortioxetine improved executive function, memory, and processing speed in MDD, beyond mood symptoms.

🔹 Bennabi et al. (2019): Cognitive benefits may be linked to 5-HT3 receptor antagonism, which modulates glutamate and GABA neurotransmission.

🔹 Post hoc analysis (Nierenberg et al., 2019): Vortioxetine significantly improved residual cognitive symptoms compared to placebo.

These effects appear distinct from traditional SSRIs.Image
Read 9 tweets
Feb 16
A 60-year-old woman with a history of heavy alcohol use presents with confusion, disinhibition, and memory impairment. Despite significant cognitive deficits, her language remains intact.

Neurological findings suggest an underlying pathology, but an unexpected serological result complicates the picture.

Could this be Wernicke-Korsakoff Syndrome, or is an overlooked autoimmune process at play?🧵👇Image
Full Symptom Profile

🧠 Cognitive & Psychiatric

● Profound anterograde amnesia (impaired new learning)
● Confabulation
● Disorientation with paranoid themes

🦵 Motor & Neurological

● Ataxia, dysdiadochokinesis, past pointing
● No ophthalmoplegia or autonomic instability
Key Investigations

🧪 Serology:

● Serum Anti-NMDA-R antibodies positive (repeat testing confirmed)
● Normal inflammatory markers (CRP, ESR, ANCA)
● Negative for HIV, syphilis

🧠 Neuroimaging:

● MRI Brain: Diffuse atrophy, periventricular white matter changes
● EEG: Generalised slowing, likely from alcohol-related injury

🩺 Additional Findings:

● Pelvic imaging: Left ovarian cystImage
Read 7 tweets

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