Hanna Nawatha

Hanna Nawatha Physician, Psychiatrist, طبيب نفسي, Founder at MeddyBear.Net רופא מתמחה בפסיכיאטריה Founder at www.MeddyBear.Net
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Jim Carrey’s honesty about his battle with depression broke the stigma for millions. He showed that therapy and medical ...
14/09/2025

Jim Carrey’s honesty about his battle with depression broke the stigma for millions. He showed that therapy and medical support matter — and that no one should face depression alone.

What do you think about celebrities sharing their mental health struggles? Does it help reduce stigma?

Much of the stress we experience stems from circumstances outside of our control. Persistently focusing on these factors...
23/08/2025

Much of the stress we experience stems from circumstances outside of our control. Persistently focusing on these factors often intensifies distress without offering solutions. By directing attention toward the aspects of life we can influence, we support greater emotional stability and healthier coping in day-to-day living. 🧘

Is this approach effortless? Certainly not. Will it eliminate all difficulties? No. Yet evidence shows it can meaningfully improve well-being—and is therefore well worth practicing. 🩷

Drug-Induced Serotonin Syndrome: A Neurologic EmergencyKey Points1. Definition: A potentially life-threatening condition...
21/08/2025

Drug-Induced Serotonin Syndrome:
A Neurologic Emergency

Key Points

1. Definition: A potentially life-threatening condition caused by excessive serotonergic activity in the CNS and peripheral nervous system.

2. Mechanism: Overstimulation of 5-HT1A/2A receptors due to:

◦ Increased serotonin synthesis (e.g., tryptophan)

◦ Decreased serotonin breakdown (MAOIs)

◦ Increased serotonin release (amphetamines, M**A)

◦ Direct receptor agonism (triptans, L*D)

◦ Reuptake inhibition (SSRIs, SNRIs, TCAs)

High-Risk Medications

1. Common Culprits

• Antidepressants: SSRIs (fluoxetine), SNRIs (venlafaxine), TCAs (clomipramine), MAOIs (phenelzine)

• Opioids: Tramadol, fentanyl, meperidine (pethidine)

• Migraine drugs: Triptans (sumatriptan)

• Antiemetics: Ondansetron, metoclopramide

• Recreational drugs: M**A, co***ne, L*D

2. Dangerous Combinations

• SSRI + MAOI (e.g., fluoxetine + linezolid) → absolute contraindication

• SSRI + tramadol (common in pain patients)

• SNRI + dextromethorphan (cough syrup)

Clinical Presentation

Hunter Criteria (Diagnosis Requires ≥1 of These)

• Spontaneous clonus (most specific sign)

• Inducible clonus + agitation/diaphoresis

• Ocular clonus + agitation/diaphoresis

• Hypertonia + hyperthermia (>38°C)

• Tremor + hyperreflexia

Triad of Symptoms

1. Neuromuscular: Myoclonus, hyperreflexia, rigidity

2. Autonomic: Tachycardia, hypertension, hyperthermia

3. Mental status changes: Agitation, delirium, coma

Management

1. Immediate Actions

◦ Discontinue all serotonergic drugs

◦ Supportive care: IV fluids, cooling for hyperthermia

◦ Benzodiazepines (e.g., lorazepam) for agitation/seizures

2. Severe Cases (Hyperthermia >41°C, Rigidity)

◦ Cyproheptadine (5-HT2A antagonist): 12 mg PO/NG, then 2–8 mg q6h

◦ ICU admission for intubation, paralysis, and cooling

3. Avoid

◦ Dantrolene (not effective; unlike malignant hyperthermia)

◦ Antipsychotics (may worsen hyperthermia)

Prevention

• Washout periods:

◦ 2 weeks between MAOIs and SSRIs

◦ 5 weeks for fluoxetine (long half-life)

• Check for drug interactions (e.g., St. John’s wort + SSRI)

Take-Home Message

• Suspect serotonin syndrome in any patient on serotonergic drugs with altered mental status + neuromuscular hyperactivity.

• Clonus + hyperreflexia are hallmark signs.

• When in doubt, stop the drugs and monitor.

Mnemonic: "SEROTONIN"

• Sweating

• Encephalopathy

• Rigidity

• Ocular clonus

• Tremor

• Overactive reflexes

• Nausea/vomiting

• Inducible clonus

• Neuromuscular excitation

08/08/2025
While many are familiar with bipolar disorder, few have heard of   — a rare, chronic mood disorder that affects around 0...
26/07/2025

While many are familiar with bipolar disorder, few have heard of — a rare, chronic mood disorder that affects around 0.4% to 1% of the population, impacting men and women equally. 🤔

Cyclothymia is marked by frequent mood shifts — from low, depressive symptoms to periods of mild euphoria or heightened energy. These emotional highs and lows are similar to those in bipolar disorder, but generally less intense and shorter in duration.

Unlike full-blown mania or major depression, cyclothymia’s symptoms can be subtle — making it harder to recognize, but still deeply disruptive to daily life if left untreated.

A landmark review finds no scientific evidence that depression is caused by a chemical imbalance. A major umbrella revie...
17/07/2025

A landmark review finds no scientific evidence that depression is caused by a chemical imbalance.

A major umbrella review led by researchers at University College London has found no convincing evidence that depression is caused by low serotonin levels or reduced serotonin activity. Published in Molecular Psychiatry, the study analyzed decades of research across several major fields and concluded that the long-standing “chemical imbalance” theory lacks scientific support. This challenges the core rationale behind the widespread use of antidepressants like SSRIs, which are believed to work by correcting low serotonin. The review suggests that the popularity of this theory may have contributed to the massive increase in antidepressant prescriptions despite the absence of biological proof.

The findings also raise concerns about how this serotonin theory may shape public perception and treatment decisions.

With up to 90% of people believing depression stems from a chemical imbalance, researchers warn that this misconception can discourage recovery optimism and reliance on non-drug treatments.

Moreover, some evidence points to antidepressants possibly lowering serotonin levels over time, highlighting a need for transparency and new approaches to mental health care.

The authors advocate for a shift in focus toward addressing life stressors, trauma, and social factors through therapy and lifestyle interventions rather than pharmacological solutions alone.

Source: Moncrieff, J., Cooper, R. E., Stockmann, T., Amendola, S., Hengartner, M. P., & Horowitz, M. A. (2022). The serotonin theory of depression: A systematic umbrella review of the evidence. Molecular Psychiatry

Post credit: Hashem Al-Ghaili

28/08/2024

Depression vs. Sadness!

😃
20/08/2024

😃

Address

שדרות מוריה 21
Haifa

Opening Hours

Monday 14:00 - 20:00
Tuesday 14:00 - 20:00
Wednesday 14:00 - 20:00
Thursday 14:00 - 20:00
Friday 08:00 - 15:00
Sunday 14:00 - 20:00

Telephone

+381691555772

Website

http://DrNawatha.com/

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