PHC-MHN-PSYCHOPHARMACHOLOGY-SYNOPSIS

πŸ’ŠπŸ§  Classification of Antipsychotic Drugs

πŸ“˜ Important for Psychiatric Nursing, Mental Health Nursing, Pharmacology Exams


πŸ”° Definition:

Antipsychotic drugs (also known as neuroleptics or major tranquilizers) are medications used to treat psychotic disorders, such as schizophrenia, bipolar disorder (manic phase), delusional disorder, and psychotic depression.
βœ… They reduce hallucinations, delusions, thought disturbances, agitation, and aggression.


🧭 Classification of Antipsychotic Drugs


🟩 I. Based on Generation:

βœ… A. First Generation (Typical) Antipsychotics

πŸ§ͺ Block dopamine D2 receptors
🎯 Effective for positive symptoms (hallucinations, delusions)

Examples:

  • Chlorpromazine
  • Haloperidol
  • Fluphenazine
  • Trifluoperazine
  • Thioridazine

Side Effects:

  • Extrapyramidal symptoms (EPS)
  • Tardive dyskinesia
  • Hyperprolactinemia

βœ… B. Second Generation (Atypical) Antipsychotics

πŸ§ͺ Block both dopamine (D2) and serotonin (5-HT2) receptors
🎯 Effective for both positive and negative symptoms (withdrawal, flat affect)

Examples:

  • Risperidone
  • Olanzapine
  • Clozapine
  • Quetiapine
  • Aripiprazole
  • Ziprasidone

Side Effects:

  • Less EPS
  • Weight gain
  • Diabetes risk (especially with clozapine, olanzapine)
  • Agranulocytosis (Clozapine)

🟨 II. Based on Potency (Typical Antipsychotics):

βœ… A. High-Potency

  • Haloperidol
  • Fluphenazine
  • Trifluoperazine
    🟠 High EPS risk, less sedation

βœ… B. Low-Potency

  • Chlorpromazine
  • Thioridazine
    🟠 High sedation and hypotension, less EPS

πŸ” Mechanism of Action:

  • Typical: Dopamine (D2) receptor antagonists
  • Atypical: Dopamine (D2) + Serotonin (5-HT2A) receptor antagonists

🩺 Indications:

  • Schizophrenia
  • Acute mania
  • Psychotic depression
  • Delusional disorders
  • Aggression and agitation in dementia
  • Tourette’s syndrome

⚠️ Common Side Effects:

  • Extrapyramidal symptoms (EPS):
    • Parkinsonism
    • Dystonia
    • Akathisia
    • Tardive dyskinesia
  • Sedation, weight gain, hypotension
  • Neuroleptic Malignant Syndrome (NMS): life-threatening emergency
  • Agranulocytosis (esp. Clozapine)

πŸ‘©β€βš•οΈ Nurse’s Responsibilities:

  • Monitor for EPS and other side effects
  • Educate patient on medication adherence
  • Regular CBC for Clozapine
  • Encourage fluid intake, physical activity
  • Watch for NMS: high fever, muscle rigidity, confusion

πŸ“š Golden One-Liners for Quick Revision:

  • 🟨 Typical antipsychotics = block dopamine, more EPS
  • 🟨 Atypical antipsychotics = block dopamine + serotonin, treat +ve and βˆ’ve symptoms
  • 🟨 Clozapine causes agranulocytosis β†’ monitor WBC
  • 🟨 Haloperidol = high-potency typical antipsychotic
  • 🟨 NMS = medical emergency caused by antipsychotics

βœ… Top 5 MCQs for Practice:


Q1. Which of the following is an atypical antipsychotic drug?

πŸ…°οΈ Haloperidol
πŸ…±οΈ Chlorpromazine
βœ… πŸ…²οΈ Risperidone
πŸ…³οΈ Trifluoperazine
Correct Answer: πŸ…²οΈ Risperidone


Q2. Which antipsychotic is most associated with agranulocytosis?

πŸ…°οΈ Olanzapine
βœ… πŸ…±οΈ Clozapine
πŸ…²οΈ Haloperidol
πŸ…³οΈ Risperidone
Correct Answer: πŸ…±οΈ Clozapine


Q3. Which is a major side effect of typical antipsychotics?

πŸ…°οΈ Hypoglycemia
βœ… πŸ…±οΈ Extrapyramidal symptoms
πŸ…²οΈ Tachycardia
πŸ…³οΈ Insomnia
Correct Answer: πŸ…±οΈ Extrapyramidal symptoms


Q4. Which symptom is treated better by atypical antipsychotics than typicals?

πŸ…°οΈ Hallucinations
πŸ…±οΈ Delusions
βœ… πŸ…²οΈ Social withdrawal
πŸ…³οΈ Violence
Correct Answer: πŸ…²οΈ Social withdrawal
Rationale: Atypicals treat negative symptoms better.


Q5. Neuroleptic Malignant Syndrome is a serious reaction to:

πŸ…°οΈ Antidepressants
βœ… πŸ…±οΈ Antipsychotics
πŸ…²οΈ Antacids
πŸ…³οΈ Antivirals
Correct Answer: πŸ…±οΈ Antipsychotics

πŸ’ŠπŸ§  Extrapyramidal Symptoms (EPS) and Nursing Management

πŸ“˜ Important for Psychiatric Nursing, Pharmacology, Mental Health & Staff Nurse Exams


πŸ”° What are Extrapyramidal Symptoms (EPS)?

EPS are a group of drug-induced movement disorders caused by dopamine blockade in the brain due to typical (first-generation) antipsychotic drugs like haloperidol, chlorpromazine, etc.

βœ… EPS affect motor control and are reversible if detected early.


πŸ§ͺ Cause:

  • Blockade of dopamine D2 receptors in the nigrostriatal pathway by typical antipsychotics

🧭 Types of Extrapyramidal Symptoms (EPS):


πŸŸ₯ 1. Acute Dystonia

Onset: Within hours to days
Symptoms:

  • Sudden, painful muscle contractions
  • Twisting of neck (torticollis)
  • Eye deviation (oculogyric crisis)
  • Facial grimacing

🟧 2. Parkinsonism (Pseudoparkinsonism)

Onset: 5–30 days
Symptoms:

  • Tremors (resting)
  • Bradykinesia (slow movement)
  • Mask-like face
  • Rigidity
  • Shuffling gait

🟨 3. Akathisia

Onset: 5–60 days
Symptoms:

  • Inner restlessness
  • Unable to sit still
  • Pacing, tapping feet
  • Anxiety, agitation

🟩 4. Tardive Dyskinesia

Onset: Months to years
Symptoms:

  • Irreversible involuntary movements
  • Lip-smacking, chewing motion
  • Tongue protrusion
  • Facial grimacing
  • Choreoathetoid limb movements

⚠️ Risk Factors:

  • Use of high-potency typical antipsychotics (e.g., Haloperidol)
  • High doses
  • Long duration of therapy
  • Elderly and females
  • History of EPS

πŸ‘©β€βš•οΈ Nursing Management of EPS:


🟩 1. Early Identification and Monitoring

πŸ”Ή Observe for muscle stiffness, tremors, restlessness, involuntary movements
πŸ”Ή Use tools like AIMS scale (Abnormal Involuntary Movement Scale) for tardive dyskinesia
πŸ”Ή Monitor onset timing after antipsychotic administration


🟨 2. Notify the Physician Promptly

πŸ”Ή Report symptoms for dose adjustment or medication change
πŸ”Ή Do not stop medication abruptly


🟧 3. Administer Antiparkinsonian Medications as Prescribed

πŸ”Ή For dystonia and Parkinsonism:

  • Trihexyphenidyl
  • Benztropine
    πŸ”Ή For akathisia:
  • Propranolol
  • Lorazepam or Clonazepam

πŸŸ₯ 4. Emotional Support and Patient Education

πŸ”Ή Reassure the patient that symptoms are drug-related and manageable
πŸ”Ή Educate about importance of reporting early signs
πŸ”Ή Inform patient not to self-stop medication


🟦 5. Prevention and Long-term Care

πŸ”Ή Use lowest effective dose
πŸ”Ή Prefer atypical antipsychotics in high-risk patients
πŸ”Ή Monitor regularly for signs of tardive dyskinesia


πŸ“š Golden One-Liners for Revision:

  • 🟨 EPS = motor side effects due to antipsychotics
  • 🟨 Dystonia = acute muscle spasms
  • 🟨 Akathisia = restlessness
  • 🟨 Tardive dyskinesia = late onset, often irreversible
  • 🟨 Trihexyphenidyl and benztropine = drugs to manage EPS
  • 🟨 Nurse must monitor, report, support, and educate

βœ… Top 5 MCQs for Practice:


Q1. Which of the following is an example of EPS?

πŸ…°οΈ Diarrhea
πŸ…±οΈ Drowsiness
βœ… πŸ…²οΈ Torticollis (neck spasm)
πŸ…³οΈ Increased appetite
Correct Answer: πŸ…²οΈ Torticollis


Q2. What drug is used to treat pseudoparkinsonism caused by antipsychotics?

πŸ…°οΈ Diazepam
πŸ…±οΈ Fluoxetine
βœ… πŸ…²οΈ Trihexyphenidyl
πŸ…³οΈ Haloperidol
Correct Answer: πŸ…²οΈ Trihexyphenidyl


Q3. Which EPS is characterized by restlessness and inability to sit still?

πŸ…°οΈ Dystonia
πŸ…±οΈ Parkinsonism
βœ… πŸ…²οΈ Akathisia
πŸ…³οΈ Tardive dyskinesia
Correct Answer: πŸ…²οΈ Akathisia


Q4. Tardive dyskinesia usually occurs:

πŸ…°οΈ Within first 24 hours
πŸ…±οΈ After 3 days
βœ… πŸ…²οΈ After months or years of treatment
πŸ…³οΈ Never
Correct Answer: πŸ…²οΈ After months or years of treatment


Q5. AIMS scale is used for assessing:

πŸ…°οΈ Anxiety
βœ… πŸ…±οΈ Tardive dyskinesia
πŸ…²οΈ Sleep pattern
πŸ…³οΈ Suicide risk
Correct Answer: πŸ…±οΈ Tardive dyskinesia

πŸ’Šβš οΈ Antipsychotic Specific Drugs and Their Special Cautions

πŸ“˜ Important for Mental Health Nursing, Pharmacology & Psychiatric Nursing Exams


πŸ”° Overview:

While all antipsychotic drugs carry risk of side effects, certain specific drugs have unique cautions related to serious adverse effects like agranulocytosis, metabolic syndrome, EPS, NMS, and QT prolongation.


🧭 Cautions for Commonly Used Antipsychotic Drugs:


πŸŸ₯ 1. Clozapine (Atypical)

Used for: Treatment-resistant schizophrenia
Cautions:

  • Agranulocytosis (life-threatening ↓ WBC count)
  • Seizure risk
  • Myocarditis
  • Severe constipation β†’ paralytic ileus
  • Weight gain and metabolic syndrome

Nursing Actions:

  • Do regular WBC/ANC monitoring (weekly for 18 weeks, then monthly)
  • Educate patient to report fever, sore throat, or infection
  • Monitor bowel movement, ECG, and weight

🟧 2. Risperidone (Atypical)

Used for: Schizophrenia, bipolar disorder
Cautions:

  • Risk of EPS at high doses
  • Hyperprolactinemia β†’ breast enlargement, galactorrhea
  • May cause orthostatic hypotension

Nursing Actions:

  • Monitor for signs of EPS (tremors, rigidity)
  • Teach slow position change to avoid falls
  • Monitor prolactin-related side effects

🟨 3. Olanzapine (Atypical)

Used for: Schizophrenia, mania
Cautions:

  • High risk of weight gain, diabetes, and dyslipidemia
  • Sedation
  • Avoid in obese, diabetic, or hypertensive patients

Nursing Actions:

  • Monitor BMI, blood sugar, lipid profile
  • Encourage diet control and physical activity
  • Administer at bedtime if sedation is a problem

🟩 4. Haloperidol (Typical, high-potency)

Used for: Acute psychosis, agitation
Cautions:

  • High risk of EPS (dystonia, Parkinsonism, akathisia)
  • Neuroleptic Malignant Syndrome (NMS)
  • QT prolongation β†’ cardiac risk

Nursing Actions:

  • Watch for sudden muscle rigidity, fever (NMS)
  • Monitor ECG for QT prolongation
  • Administer anticholinergic (e.g., trihexyphenidyl) if EPS occurs

🟦 5. Quetiapine (Atypical)

Used for: Schizophrenia, bipolar disorder
Cautions:

  • Causes sedation, dizziness
  • Risk of metabolic syndrome
  • May cause cataracts on long-term use

Nursing Actions:

  • Give at bedtime to reduce sedation complaints
  • Monitor weight, blood sugar, and lipid profile
  • Encourage regular eye check-ups

πŸŸͺ 6. Aripiprazole (Atypical, partial D2 agonist)

Used for: Schizophrenia, bipolar disorder, depression adjunct
Cautions:

  • Less metabolic risk, but may cause akathisia
  • Insomnia, anxiety, and agitation in some patients

Nursing Actions:

  • Monitor for restlessness and inability to sit still
  • Administer in morning to avoid insomnia
  • Educate regarding anxiety and coping support

🟫 7. Thioridazine (Typical, low-potency)

Used for: Psychosis
Cautions:

  • Risk of retinal pigmentation β†’ vision loss
  • QT prolongation and cardiac arrhythmia
  • Strong anticholinergic effects (dry mouth, urinary retention)

Nursing Actions:

  • Perform baseline eye exam and monitor vision
  • Monitor ECG and cardiac status
  • Hydration and oral hygiene support

πŸ“š Golden One-Liners for Revision:

  • 🟨 Clozapine = agranulocytosis β†’ monitor CBC regularly
  • 🟨 Olanzapine = weight gain, diabetes β†’ monitor BMI, sugar
  • 🟨 Haloperidol = high EPS and NMS risk β†’ observe closely
  • 🟨 Risperidone = prolactin ↑ β†’ breast symptoms
  • 🟨 Aripiprazole = akathisia + insomnia β†’ morning dose preferred

βœ… Top 5 MCQs for Practice:


Q1. Which antipsychotic drug requires regular monitoring of WBC counts due to agranulocytosis risk?

πŸ…°οΈ Olanzapine
βœ… πŸ…±οΈ Clozapine
πŸ…²οΈ Risperidone
πŸ…³οΈ Haloperidol
Correct Answer: πŸ…±οΈ Clozapine


Q2. Which of the following drugs causes the most weight gain and metabolic syndrome?

πŸ…°οΈ Aripiprazole
βœ… πŸ…±οΈ Olanzapine
πŸ…²οΈ Haloperidol
πŸ…³οΈ Trifluoperazine
Correct Answer: πŸ…±οΈ Olanzapine


Q3. A nurse is administering haloperidol. Which side effect should she watch for most urgently?

πŸ…°οΈ Headache
πŸ…±οΈ Nausea
βœ… πŸ…²οΈ Neuroleptic Malignant Syndrome
πŸ…³οΈ Constipation
Correct Answer: πŸ…²οΈ Neuroleptic Malignant Syndrome


Q4. Which atypical antipsychotic is associated with hyperprolactinemia?

πŸ…°οΈ Clozapine
βœ… πŸ…±οΈ Risperidone
πŸ…²οΈ Aripiprazole
πŸ…³οΈ Quetiapine
Correct Answer: πŸ…±οΈ Risperidone


Q5. Which antipsychotic may cause retinal damage and needs vision monitoring?

πŸ…°οΈ Quetiapine
πŸ…±οΈ Clozapine
βœ… πŸ…²οΈ Thioridazine
πŸ…³οΈ Haloperidol
Correct Answer: πŸ…²οΈ Thioridazine

πŸ’ŠπŸ§  Antidepressant Drugs

πŸ“˜ Important for Psychiatric Nursing, Pharmacology, Mental Health & Staff Nurse Competitive Exams


πŸ”° Definition:

Antidepressants are psychotropic drugs used to relieve symptoms of depression and other related mood disorders by modulating neurotransmitters like serotonin (5-HT), norepinephrine (NE), and dopamine (DA) in the brain.


🧭 Classification of Antidepressants:


🟩 1. SSRIs (Selective Serotonin Reuptake Inhibitors)

πŸ§ͺ Increase serotonin levels by inhibiting reuptake

Examples:

  • Fluoxetine
  • Sertraline
  • Escitalopram
  • Paroxetine
  • Fluvoxamine

Advantages:

  • First-line therapy
  • Fewer side effects
  • Safer in overdose

Side Effects:

  • Nausea, insomnia, sexual dysfunction, headache, serotonin syndrome

🟨 2. SNRIs (Serotonin-Norepinephrine Reuptake Inhibitors)

πŸ§ͺ Increase both serotonin and norepinephrine

Examples:

  • Venlafaxine
  • Duloxetine
  • Desvenlafaxine

Side Effects:

  • Hypertension, nausea, sweating, insomnia

🟧 3. TCAs (Tricyclic Antidepressants)

πŸ§ͺ Block reuptake of serotonin and norepinephrine

Examples:

  • Amitriptyline
  • Imipramine
  • Nortriptyline
  • Clomipramine

Side Effects:

  • Anticholinergic effects: dry mouth, constipation, urinary retention
  • Sedation, orthostatic hypotension, cardiotoxicity in overdose

πŸŸ₯ 4. MAOIs (Monoamine Oxidase Inhibitors)

πŸ§ͺ Inhibit MAO enzyme, preventing breakdown of serotonin, NE, dopamine

Examples:

  • Phenelzine
  • Tranylcypromine
  • Isocarboxazid

Cautions:

  • Tyramine interaction β†’ hypertensive crisis (avoid cheese, wine, pickles)
  • Many drug interactions

🟦 5. Atypical Antidepressants

πŸ§ͺ Act on multiple neurotransmitter systems

Examples & Features:

DrugKey Feature
BupropionSmoking cessation, less sexual SE
MirtazapineSedative, appetite ↑
TrazodoneSedative, used in insomnia

🎯 Indications:

  • Major depressive disorder
  • Dysthymia
  • Bipolar depression (with mood stabilizers)
  • Obsessive-compulsive disorder (OCD)
  • Panic disorder
  • PTSD
  • Eating disorders (e.g., bulimia)
  • Smoking cessation (bupropion)

⚠️ Common Side Effects of Antidepressants:

  • GI upset: nausea, diarrhea
  • CNS effects: insomnia or drowsiness
  • Sexual dysfunction (SSRIs)
  • Serotonin Syndrome: high serotonin β†’ tremor, fever, agitation
  • Hypertensive crisis (MAOIs + tyramine foods)
  • Weight gain or loss
  • Risk of suicidal thoughts in early weeks

πŸ‘©β€βš•οΈ Nursing Responsibilities:


🟩 1. Assessment Before Administration

πŸ”Ή Monitor for depression severity, suicidal thoughts
πŸ”Ή Assess vital signs, weight, appetite, sleep


🟨 2. Patient Education

πŸ”Ή Antidepressants may take 2–4 weeks to show effect
πŸ”Ή Do not stop suddenly – taper required
πŸ”Ή Avoid alcohol and other CNS depressants
πŸ”Ή MAOI users must avoid tyramine-rich food


🟧 3. Monitor for Side Effects and Adverse Reactions

πŸ”Ή Watch for serotonin syndrome
πŸ”Ή Report agitation, tremor, confusion, fever
πŸ”Ή For TCAs: monitor ECG, especially in elderly


πŸŸ₯ 4. Ensure Medication Adherence

πŸ”Ή Supervise medication in suicidal patients
πŸ”Ή Encourage regular follow-up and support


🟦 5. Psychological Support

πŸ”Ή Provide counseling or refer to therapist
πŸ”Ή Involve family in treatment plan


πŸ“š Golden One-Liners for Quick Revision:

  • 🟨 SSRIs are first-line antidepressants (safe, well-tolerated)
  • 🟨 TCAs are older, cause sedation & cardiac risks
  • 🟨 MAOIs need diet restrictions (no cheese, wine)
  • 🟨 Antidepressants take 2–4 weeks to show effect
  • 🟨 Monitor for suicidal behavior in initial treatment

βœ… Top 5 MCQs for Practice:


Q1. Which antidepressant class is safest in overdose?

πŸ…°οΈ TCA
βœ… πŸ…±οΈ SSRI
πŸ…²οΈ MAOI
πŸ…³οΈ SNRI
Correct Answer: πŸ…±οΈ SSRI
Rationale: SSRIs have minimal cardiotoxicity and are safer in overdose.


Q2. Patient on MAOIs must avoid:

πŸ…°οΈ Rice
πŸ…±οΈ Apple
βœ… πŸ…²οΈ Cheese and wine
πŸ…³οΈ Bananas only
Correct Answer: πŸ…²οΈ Cheese and wine
Rationale: Tyramine-rich foods can cause hypertensive crisis.


Q3. Which TCA is used commonly in depression?

πŸ…°οΈ Risperidone
πŸ…±οΈ Fluoxetine
βœ… πŸ…²οΈ Amitriptyline
πŸ…³οΈ Diazepam
Correct Answer: πŸ…²οΈ Amitriptyline


Q4. A nurse should closely monitor for serotonin syndrome when:

πŸ…°οΈ TCA is given with sedative
βœ… πŸ…±οΈ SSRI is combined with MAOI
πŸ…²οΈ MAOI is stopped early
πŸ…³οΈ SSRI is stopped suddenly
Correct Answer: πŸ…±οΈ SSRI is combined with MAOI


Q5. Bupropion is commonly used for:

πŸ…°οΈ Panic attacks
πŸ…±οΈ Sleep disorders
βœ… πŸ…²οΈ Smoking cessation
πŸ…³οΈ Hypertension
Correct Answer: πŸ…²οΈ Smoking cessation

πŸ’Šβš οΈ Specific Antidepressant Drugs and Their Special Cautions

πŸ“˜ Important for Psychiatric Nursing, Pharmacology, and Competitive Nursing Exams


πŸ”° Why Are Cautions Needed?

Each antidepressant has specific pharmacological properties, side effects, and interactions. Knowing the special precautions for each helps nurses in:

  • Preventing serious adverse reactions
  • Ensuring safe drug administration
  • Educating patients effectively

🧭 Specific Antidepressants & Their Key Cautions:


πŸŸ₯ 1. Amitriptyline (TCA – Tricyclic Antidepressant)

Used for: Depression, neuropathic pain, migraine prevention
Cautions:

  • Strong anticholinergic effects: dry mouth, constipation, urinary retention
  • Orthostatic hypotension
  • Sedation and weight gain
  • Cardiotoxicity in overdose β†’ fatal arrhythmias

Nursing Action:

  • Avoid in cardiac patients
  • Monitor BP, especially when rising from bed
  • Give at bedtime due to sedation
  • Encourage hydration and fiber intake

🟧 2. Imipramine (TCA)

Used for: Depression, nocturnal enuresis in children
Cautions:

  • Same as amitriptyline
  • Urinary retention and QT prolongation

Nursing Action:

  • Not recommended for elderly with BPH
  • Monitor ECG and urinary output

🟨 3. Fluoxetine (SSRI)

Used for: Depression, OCD, anxiety
Cautions:

  • Insomnia, agitation, headache
  • Risk of serotonin syndrome if combined with MAOI, TCA, tramadol
  • May cause sexual dysfunction

Nursing Action:

  • Administer in the morning to avoid insomnia
  • Do not use with MAOIs – wait at least 14 days
  • Monitor for restlessness, tremor, fever

🟩 4. Sertraline (SSRI)

Used for: Depression, PTSD, panic disorder
Cautions:

  • Nausea, GI upset, sexual dysfunction
  • Serotonin syndrome risk if combined with St. John’s Wort or MAOIs

Nursing Action:

  • Give with food to reduce GI upset
  • Educate about delayed onset of effect (2–4 weeks)

🟦 5. Venlafaxine (SNRI)

Used for: Depression, generalized anxiety disorder
Cautions:

  • Can increase BP and heart rate
  • Withdrawal symptoms if stopped abruptly (brain zaps, dizziness)

Nursing Action:

  • Monitor BP regularly
  • Do not stop suddenly – taper gradually
  • Caution in hypertensive patients

πŸŸͺ 6. Duloxetine (SNRI)

Used for: Depression, diabetic neuropathy, fibromyalgia
Cautions:

  • Hepatotoxicity risk
  • Nausea, fatigue
  • Avoid in liver disease or alcoholics

Nursing Action:

  • Monitor liver function (LFTs)
  • Advise patient to avoid alcohol

🟫 7. Bupropion (Atypical Antidepressant)

Used for: Depression, smoking cessation
Cautions:

  • Increases seizure risk, especially in high doses
  • Insomnia, agitation

Nursing Action:

  • Avoid in epileptic patients or eating disorders (anorexia/bulimia)
  • Administer in morning
  • Do not crush or chew extended-release forms

πŸŸ₯ 8. Mirtazapine (Atypical Antidepressant)

Used for: Depression with insomnia or weight loss
Cautions:

  • Causes sedation and weight gain
  • Rare risk of agranulocytosis

Nursing Action:

  • Administer at bedtime
  • Monitor WBC count in long-term use

🟧 9. Trazodone (SARI – serotonin antagonist and reuptake inhibitor)

Used for: Depression with insomnia
Cautions:

  • Strong sedative effect
  • Rare but serious risk of priapism (painful erection)

Nursing Action:

  • Give at night
  • Educate men to report prolonged erections immediately

πŸ“š Golden One-Liners for Quick Revision:

  • 🟨 Amitriptyline/Imipramine: anticholinergic + cardiac toxicity
  • 🟨 SSRIs (fluoxetine, sertraline): serotonin syndrome + sexual dysfunction
  • 🟨 Venlafaxine: ↑ BP, taper slowly
  • 🟨 Duloxetine: liver caution
  • 🟨 Bupropion: seizure risk
  • 🟨 Mirtazapine: sedative, agranulocytosis
  • 🟨 Trazodone: sedation + priapism risk

βœ… Top 5 MCQs for Practice:


Q1. Which antidepressant has a high risk of seizures and should be avoided in epilepsy?

πŸ…°οΈ Mirtazapine
πŸ…±οΈ Amitriptyline
βœ… πŸ…²οΈ Bupropion
πŸ…³οΈ Sertraline
Correct Answer: πŸ…²οΈ Bupropion


Q2. Which antidepressant requires monitoring of liver function tests?

πŸ…°οΈ Venlafaxine
πŸ…±οΈ Fluoxetine
βœ… πŸ…²οΈ Duloxetine
πŸ…³οΈ Trazodone
Correct Answer: πŸ…²οΈ Duloxetine


Q3. Which is a serious adverse effect of Trazodone?

πŸ…°οΈ Hypertension
βœ… πŸ…±οΈ Priapism
πŸ…²οΈ Agranulocytosis
πŸ…³οΈ Liver failure
Correct Answer: πŸ…±οΈ Priapism


Q4. Mirtazapine is especially useful in patients with:

πŸ…°οΈ Weight gain and insomnia
πŸ…±οΈ Obesity
βœ… πŸ…²οΈ Weight loss and insomnia
πŸ…³οΈ Hypertension
Correct Answer: πŸ…²οΈ Weight loss and insomnia


Q5. Which antidepressant class should not be combined with tyramine-rich foods?

πŸ…°οΈ SSRI
βœ… πŸ…±οΈ MAOI
πŸ…²οΈ SNRI
πŸ…³οΈ TCA
Correct Answer: πŸ…±οΈ MAOI

πŸ’ŠπŸ§  Anti-Manic Drugs (Mood Stabilizers)

πŸ“˜ Important for Psychiatric Nursing, Pharmacology & Mental Health Nursing Exams


πŸ”° Definition:

Anti-manic drugs or mood stabilizers are medications used to control acute manic episodes, prevent mood swings, and maintain emotional stability in conditions like bipolar disorder and mania.

βœ… They stabilize mood by modulating neurotransmitters like dopamine, glutamate, and GABA.


🧭 Classification of Anti-Manic Drugs:


🟩 1. Lithium (Classic Mood Stabilizer)

  • First-line drug for acute mania and bipolar maintenance
  • Narrow therapeutic index

🟨 2. Anticonvulsants (Used as Mood Stabilizers)

Examples:

  • Valproic acid / Divalproex sodium
  • Carbamazepine
  • Lamotrigine
  • Oxcarbazepine

🟧 3. Atypical Antipsychotics with Mood-Stabilizing Properties

Examples:

  • Olanzapine
  • Risperidone
  • Quetiapine
  • Aripiprazole

Used for acute mania and bipolar depression, especially in combination with lithium or valproate.


🎯 Indications of Anti-Manic Drugs:

  • Acute manic episodes
  • Maintenance of bipolar disorder (Type I & II)
  • Cyclothymia
  • Schizoaffective disorder
  • Aggression, mood lability, irritability

⚠️ Specific Drug Details and Nursing Cautions:


πŸŸ₯ 1. Lithium

Therapeutic range: 0.6–1.2 mEq/L
Toxic level: >1.5 mEq/L

Side Effects:

  • Fine hand tremors
  • Polyuria, polydipsia
  • Weight gain
  • GI upset
  • Hypothyroidism
  • Nephrotoxicity
  • Teratogenic (Ebstein’s anomaly)

Signs of Lithium Toxicity:

  • Coarse tremor, confusion
  • Muscle weakness, vomiting, diarrhea
  • Seizures, coma

Nursing Care:

  • Monitor serum lithium levels regularly
  • Maintain hydration (2-3 L/day)
  • Avoid low sodium diets (can ↑ lithium toxicity)
  • Monitor thyroid and kidney function
  • Do not give with NSAIDs, diuretics, ACE inhibitors
  • Administer with food to reduce GI upset

🟨 2. Valproic Acid / Divalproex Sodium

Used for: Acute mania, rapid cycling bipolar

Side Effects:

  • Hepatotoxicity
  • Pancreatitis
  • Tremors
  • Weight gain
  • Hair loss
  • Teratogenic (neural tube defects)

Nursing Care:

  • Monitor LFTs (AST, ALT)
  • Educate about pancreatitis signs: abdominal pain, vomiting
  • Avoid in pregnancy

🟧 3. Carbamazepine

Used for: Bipolar disorder (esp. with aggression or rapid cycling)

Side Effects:

  • Agranulocytosis
  • Aplastic anemia
  • Drowsiness, dizziness
  • Rash (risk of Stevens-Johnson Syndrome)

Nursing Care:

  • Monitor CBC (WBC count)
  • Watch for fever, sore throat
  • Screen for HLA-B*1502 gene (in Asians)
  • Avoid grapefruit juice (↑ toxicity)

🟦 4. Lamotrigine

Used for: Bipolar depression (not acute mania)

Side Effects:

  • Stevens-Johnson Syndrome (SJS)
  • Headache, dizziness, nausea

Nursing Care:

  • Start at low dose, titrate slowly
  • Educate on rash β†’ report immediately
  • Do not stop abruptly

πŸ“š Golden One-Liners for Quick Revision:

  • 🟨 Lithium is the gold standard mood stabilizer
  • 🟨 Lithium toxicity: tremor, diarrhea, confusion
  • 🟨 Valproate causes liver and pancreas damage
  • 🟨 Carbamazepine causes agranulocytosis
  • 🟨 Lamotrigine β†’ slow titration due to SJS risk
  • 🟨 Avoid lithium in renal disease & pregnancy

βœ… Top 5 MCQs for Practice:


Q1. What is the therapeutic range of lithium?

πŸ…°οΈ 2–3 mEq/L
πŸ…±οΈ 1.5–2.0 mEq/L
βœ… πŸ…²οΈ 0.6–1.2 mEq/L
πŸ…³οΈ 0.2–0.5 mEq/L
Correct Answer: πŸ…²οΈ 0.6–1.2 mEq/L


Q2. A nurse should withhold lithium if a patient is:

πŸ…°οΈ Having increased appetite
βœ… πŸ…±οΈ Vomiting and dehydrated
πŸ…²οΈ Sleeping more
πŸ…³οΈ Exercising regularly
Correct Answer: πŸ…±οΈ Vomiting and dehydrated
Rationale: Dehydration can increase lithium levels β†’ toxicity.


Q3. A serious side effect of valproic acid is:

πŸ…°οΈ Constipation
βœ… πŸ…±οΈ Hepatotoxicity
πŸ…²οΈ Hypertension
πŸ…³οΈ Hyperglycemia
Correct Answer: πŸ…±οΈ Hepatotoxicity


Q4. What is a life-threatening complication of lamotrigine?

πŸ…°οΈ Constipation
πŸ…±οΈ Weight gain
βœ… πŸ…²οΈ Stevens-Johnson Syndrome
πŸ…³οΈ Hyperkalemia
Correct Answer: πŸ…²οΈ Stevens-Johnson Syndrome


Q5. What lab test should be monitored for a patient on carbamazepine?

πŸ…°οΈ BUN
πŸ…±οΈ Blood sugar
βœ… πŸ…²οΈ CBC
πŸ…³οΈ Serum amylase
Correct Answer: πŸ…²οΈ CBC
Rationale: To detect agranulocytosis or aplastic anemia

πŸ’ŠπŸ˜Ÿ Anti-Anxiety Drugs (Anxiolytics)

πŸ“˜ Important for Psychiatric Nursing, Mental Health Nursing, Pharmacology & Staff Nurse Exams


πŸ”° Definition:

Anti-anxiety drugs, also called anxiolytics, are medications used to reduce or control symptoms of anxiety, such as restlessness, fear, tension, panic, and sleep disturbances.

βœ… They are mainly used in generalized anxiety disorder (GAD), panic disorder, phobias, and acute anxiety states.


🧭 Classification of Anti-Anxiety Drugs:


πŸŸ₯ 1. Benzodiazepines (BZDs)

πŸ§ͺ Enhance GABA neurotransmission β†’ calming effect
🎯 Used for acute anxiety, insomnia, panic attacks

Examples:

  • Diazepam
  • Lorazepam
  • Clonazepam
  • Alprazolam
  • Oxazepam

Key Points:

  • Fast onset
  • Risk of dependence and withdrawal symptoms
  • CNS depression: drowsiness, confusion
  • Used short-term only

🟧 2. Non-Benzodiazepine Anxiolytics

πŸ”Ή Buspirone

  • Used for GAD
  • No sedation, no addiction
  • Takes 1–3 weeks to show effect
  • Safe for long-term use

🟨 3. SSRIs (Selective Serotonin Reuptake Inhibitors)

πŸ§ͺ Increase serotonin levels
🎯 First-line for chronic anxiety disorders, OCD, panic disorder, PTSD

Examples:

  • Fluoxetine
  • Paroxetine
  • Sertraline
  • Escitalopram

Caution:

  • May increase anxiety initially
  • Risk of serotonin syndrome

🟩 4. SNRIs (Serotonin-Norepinephrine Reuptake Inhibitors)

πŸ§ͺ Useful in GAD and panic disorder

Examples:

  • Venlafaxine
  • Duloxetine

🟦 5. Beta-Blockers

🎯 Used for performance anxiety (situational)

  • Control palpitations, tremors, sweating

Examples:

  • Propranolol
  • Atenolol

πŸŸͺ 6. Others

  • Hydroxyzine (antihistamine with anxiolytic effect)
  • Pregabalin (used in GAD)

🎯 Indications:

  • Generalized anxiety disorder (GAD)
  • Panic disorder
  • Social anxiety disorder
  • OCD
  • PTSD
  • Phobic disorders
  • Acute stress/anxiety (e.g., before surgery)
  • Sleep disturbances (BZDs)

⚠️ Common Side Effects:

🟧 Benzodiazepines:

  • Drowsiness, sedation
  • Dizziness
  • Memory impairment
  • Dependence and withdrawal
  • Respiratory depression (high doses)

🟨 SSRIs/SNRIs:

  • Nausea
  • Headache
  • Sexual dysfunction
  • Increased anxiety at start
  • Serotonin syndrome (rare but serious)

πŸ‘©β€βš•οΈ Nursing Responsibilities:


🟩 1. Assessment:

  • Assess anxiety severity, sleep pattern, substance use
  • Check vitals, level of consciousness before giving BZDs

🟨 2. Monitoring & Safety:

  • Monitor for sedation, confusion, dizziness
  • Caution in elderly (risk of falls)
  • Avoid alcohol or CNS depressants with BZDs

🟧 3. Education:

  • Do not stop benzodiazepines suddenly (risk of withdrawal, seizures)
  • Explain SSRIs take 2–4 weeks to show full effect
  • Buspirone must be taken regularly, not as-needed
  • Avoid driving or operating machinery on sedatives

πŸŸ₯ 4. Prevention of Dependence:

  • Use lowest effective dose
  • Prefer short-term use of BZDs
  • Encourage non-drug methods: relaxation, CBT, breathing exercises

πŸ“š Golden One-Liners for Revision:

  • 🟨 BZDs = fast, effective but addictive
  • 🟨 Buspirone = non-sedating, slow onset, no addiction
  • 🟨 SSRIs = first-line for long-term anxiety disorders
  • 🟨 Beta-blockers = used in performance anxiety
  • 🟨 Taper BZDs slowly to prevent withdrawal

βœ… Top 5 MCQs for Practice:


Q1. Which of the following is a non-sedating, non-addictive anti-anxiety drug?

πŸ…°οΈ Diazepam
βœ… πŸ…±οΈ Buspirone
πŸ…²οΈ Clonazepam
πŸ…³οΈ Lorazepam
Correct Answer: πŸ…±οΈ Buspirone


Q2. Benzodiazepines act by enhancing the effect of:

πŸ…°οΈ Serotonin
πŸ…±οΈ Dopamine
βœ… πŸ…²οΈ GABA
πŸ…³οΈ Acetylcholine
Correct Answer: πŸ…²οΈ GABA


Q3. Which drug is most commonly used for performance anxiety?

πŸ…°οΈ Alprazolam
βœ… πŸ…±οΈ Propranolol
πŸ…²οΈ Buspirone
πŸ…³οΈ Diazepam
Correct Answer: πŸ…±οΈ Propranolol


Q4. A nurse should avoid giving benzodiazepines with:

πŸ…°οΈ Food
βœ… πŸ…±οΈ Alcohol
πŸ…²οΈ Water
πŸ…³οΈ Fruit juice
Correct Answer: πŸ…±οΈ Alcohol


Q5. Common side effect of SSRIs in anxiety treatment is:

πŸ…°οΈ Seizures
πŸ…±οΈ Mania
βœ… πŸ…²οΈ Increased anxiety in initial days
πŸ…³οΈ Hypertension
Correct Answer: πŸ…²οΈ Increased anxiety in initial days

πŸ’ŠπŸ§  Anti-Parkinsonism Drugs

πŸ“˜ Important for Mental Health Nursing, Pharmacology, Neurology & Staff Nurse Exams


πŸ”° Definition:

Anti-Parkinsonism drugs are medications used to treat symptoms of Parkinson’s disease or Parkinsonism caused by antipsychotic drugs (drug-induced Parkinsonism or extrapyramidal symptoms – EPS).

βœ… These drugs work by restoring the balance between dopamine and acetylcholine in the brain.


🧭 Classification of Anti-Parkinsonism Drugs:


🟩 1. Dopaminergic Drugs (Increase dopamine activity)

πŸ§ͺ Used for idiopathic Parkinson’s disease

Examples:

  • Levodopa + Carbidopa (Sinemet)
  • Amantadine
  • Bromocriptine (Dopamine agonist)
  • Pramipexole, Ropinirole

Mechanism:

  • Levodopa converts to dopamine in the brain
  • Carbidopa prevents peripheral breakdown of levodopa

🟨 2. Anticholinergic Drugs (Decrease acetylcholine)

πŸ§ͺ Used in drug-induced Parkinsonism (from antipsychotics)
βœ… Most commonly used in psychiatric settings

Examples:

  • Trihexyphenidyl (most common)
  • Benztropine
  • Biperiden

Mechanism:

  • Reduce acetylcholine activity to balance dopamine-acetylcholine imbalance
  • Control tremors, rigidity, drooling

🟧 3. MAO-B Inhibitors

πŸ§ͺ Inhibit breakdown of dopamine
Examples:

  • Selegiline
  • Rasagiline

πŸŸ₯ 4. COMT Inhibitors

πŸ§ͺ Enhance levodopa effect
Examples:

  • Entacapone
  • Tolcapone

🎯 Indications:

  • Parkinson’s disease (idiopathic)
  • Drug-induced Parkinsonism (EPS due to antipsychotics)
  • Parkinsonian symptoms: rigidity, bradykinesia, tremors
  • Akathisia, dystonia (with anticholinergics)

⚠️ Side Effects of Anti-Parkinsonism Drugs:


πŸ”Ή Dopaminergic drugs (e.g., Levodopa):

  • Nausea, vomiting
  • Postural hypotension
  • Dyskinesia (involuntary movements)
  • Hallucinations/confusion in elderly
  • Wearing-off phenomenon

πŸ”Ή Anticholinergics (e.g., Trihexyphenidyl):

  • Dry mouth
  • Blurred vision
  • Constipation
  • Urinary retention
  • Cognitive impairment in elderly

πŸ‘©β€βš•οΈ Nursing Responsibilities:


🟩 1. Before Administration:

  • Assess for tremors, rigidity, gait problems
  • Monitor for signs of EPS if patient is on antipsychotics
  • Check vital signs (orthostatic hypotension)

🟨 2. Monitoring After Administration:

  • Monitor for side effects (confusion, hallucination, dyskinesia)
  • Assess effectiveness – improvement in motor symptoms
  • Check for overdose signs (increased movements, restlessness)

🟧 3. Patient Education:

  • Take Levodopa with food to reduce nausea (but low protein diet preferred)
  • Do not stop suddenly β†’ may worsen Parkinsonism
  • Avoid driving if dizzy or drowsy
  • For anticholinergics: increase fluids, fiber to avoid constipation
  • Use sugar-free candies for dry mouth

πŸŸ₯ 4. In Psychiatric Settings:

  • Use Trihexyphenidyl or Benztropine to treat EPS from antipsychotic use
  • Teach patient to report muscle stiffness, tremor, or drooling

πŸ“š Golden One-Liners for Revision:

  • 🟨 Trihexyphenidyl is used to treat drug-induced Parkinsonism (EPS)
  • 🟨 Levodopa is the most effective drug for Parkinson’s disease
  • 🟨 Anticholinergics are avoided in elderly with glaucoma or BPH
  • 🟨 Side effects of anticholinergics = dry mouth, urinary retention, blurred vision
  • 🟨 Abrupt withdrawal of Parkinson’s drugs can lead to neuroleptic malignant-like syndrome

βœ… Top 5 MCQs for Practice:


Q1. Which drug is commonly used for drug-induced extrapyramidal symptoms (EPS)?

πŸ…°οΈ Levodopa
βœ… πŸ…±οΈ Trihexyphenidyl
πŸ…²οΈ Amantadine
πŸ…³οΈ Bromocriptine
Correct Answer: πŸ…±οΈ Trihexyphenidyl


Q2. What is the purpose of combining Levodopa with Carbidopa?

πŸ…°οΈ Increase dopamine breakdown
πŸ…±οΈ Improve acetylcholine activity
βœ… πŸ…²οΈ Prevent peripheral breakdown of Levodopa
πŸ…³οΈ Reduce anxiety
Correct Answer: πŸ…²οΈ Prevent peripheral breakdown of Levodopa


Q3. Which is a side effect of anticholinergic drugs like Benztropine?

πŸ…°οΈ Diarrhea
πŸ…±οΈ Sweating
βœ… πŸ…²οΈ Dry mouth
πŸ…³οΈ Hyperkalemia
Correct Answer: πŸ…²οΈ Dry mouth


Q4. Levodopa should be avoided with:

πŸ…°οΈ Fruit juice
πŸ…±οΈ Vitamin C
βœ… πŸ…²οΈ High-protein diet
πŸ…³οΈ Water
Correct Answer: πŸ…²οΈ High-protein diet
Rationale: Protein competes with Levodopa absorption.


Q5. Which drug is used in both Parkinsonism and influenza A virus?

πŸ…°οΈ Levodopa
πŸ…±οΈ Bromocriptine
βœ… πŸ…²οΈ Amantadine
πŸ…³οΈ Selegiline
Correct Answer: πŸ…²οΈ Amantadine

πŸ’ŠπŸ˜΄ Sedative-Hypnotics

πŸ“˜ Important for Mental Health Nursing, Pharmacology, and Staff Nurse Exams


πŸ”° Definition:

Sedative-hypnotics are drugs that depress the central nervous system (CNS) to produce:

  • Sedation (calmness, reduced anxiety) at low doses
  • Hypnosis (induction of sleep) at higher doses

🧭 Classification of Sedative-Hypnotics:


πŸŸ₯ 1. Benzodiazepines (BZDs)

βœ… Most commonly used sedatives/hypnotics

Examples:

  • Diazepam
  • Lorazepam
  • Midazolam
  • Temazepam
  • Alprazolam

Uses:

  • Anxiety
  • Insomnia
  • Pre-anesthesia
  • Seizures (status epilepticus)

Side Effects:

  • Drowsiness, confusion
  • Dependence
  • Respiratory depression (high doses)

🟧 2. Non-Benzodiazepine Hypnotics

βœ… Safer with less risk of dependence

Examples:

  • Zolpidem
  • Zaleplon
  • Eszopiclone

Uses:

  • Short-term insomnia
    Side Effects:
  • Dizziness, headache, sleepwalking

🟨 3. Barbiturates

βœ… Rarely used now (high risk of overdose)

Examples:

  • Phenobarbital
  • Thiopental
  • Secobarbital

Uses:

  • Epilepsy
  • Anesthesia
    Side Effects:
  • High risk of tolerance, dependence, respiratory depression, coma

🟩 4. Antihistamines (with sedative effects)

Examples:

  • Hydroxyzine
  • Diphenhydramine

Uses:

  • Mild anxiety, sleep aid

πŸ‘©β€βš•οΈ Nursing Responsibilities (Sedative-Hypnotics):

  • Monitor respiratory rate & LOC
  • Avoid alcohol and other CNS depressants
  • Educate: Do not drive or operate machinery
  • Taper BZDs slowly to prevent withdrawal
  • Administer at bedtime

βœ… Top MCQ:

Q. Which drug is a non-benzodiazepine hypnotic used in insomnia?
βœ… Zolpidem



πŸ’ŠπŸ§  Psychotropic Drug Classifications

πŸ“˜ Core topic for Mental Health Nursing, AIIMS, NORCET, GPSC & Pharmacology


πŸ”° Definition:

Psychotropic drugs are medications that affect the mind, emotions, and behavior by acting on the central nervous system (CNS).


🧭 Major Classes of Psychotropic Drugs:


πŸŸ₯ 1. Antipsychotics (Neuroleptics)

Used for: Schizophrenia, psychosis, mania

  • Typical: Haloperidol, Chlorpromazine
  • Atypical: Risperidone, Clozapine

🟧 2. Antidepressants

Used for: Depression, anxiety, OCD, PTSD

  • SSRIs: Fluoxetine, Sertraline
  • TCAs: Amitriptyline
  • MAOIs: Phenelzine
  • Atypicals: Mirtazapine, Bupropion

🟨 3. Mood Stabilizers (Anti-Manic)

Used for: Bipolar disorder

  • Lithium
  • Valproate
  • Carbamazepine
  • Lamotrigine

🟩 4. Anxiolytics (Anti-Anxiety Drugs)

Used for: Anxiety, panic, phobias

  • BZDs: Diazepam, Lorazepam
  • Buspirone
  • Beta-blockers: Propranolol (for performance anxiety)

🟦 5. Sedative-Hypnotics

Used for: Insomnia, pre-anesthesia

  • BZDs, Z-drugs (Zolpidem), Barbiturates

πŸŸͺ 6. CNS Stimulants

Used for: ADHD, narcolepsy

  • Methylphenidate
  • Amphetamines

πŸ“š Golden One-Liners for Revision:

  • 🟨 Antipsychotics = Dopamine blockers
  • 🟨 Antidepressants = Increase serotonin/norepinephrine
  • 🟨 Mood stabilizers = Used in bipolar
  • 🟨 Anxiolytics = Enhance GABA
  • 🟨 Sedatives = Cause drowsiness and sleep

βœ… Top MCQ:

Q. Which class of psychotropic drugs is primarily used to treat schizophrenia?
βœ… Antipsychotics

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