Psychopharmacology Practice Questions

Q: Which of the following drugs are used in the treatment of Attention-Deficit Hyperactivity Disorder (ADHD)?

All of the options. ***All of the options*** - **Atomoxetine**, **dexmethylphenidate**, and **methylphenidate** are all approved and commonly used medications for managing Attention-Deficit Hyperactivity Disorder (ADHD) [1]. - They represent different classes or formulations of drugs targeting neurotransmitter systems involved in ADHD. *Atomoxetine* - This is a **selective norepinephrine reuptake inhibitor** used for ADHD. - It is a **non-stimulant** option, often preferred for patients who do not tolerate stimulants or have co-existing anxiety disorders. *Dexmethylphenidate* - This is the **dextro-isomer** of methylphenidate, and it is a **central nervous system (CNS) stimulant** [1]. - It is known for its **potency** and faster onset of action due to only containing the active isomer. *Methylphenidate* - This is a **CNS stimulant** medication that works by blocking the reuptake of norepinephrine and dopamine [1]. - It is available in various formulations (short-acting, intermediate-acting, long-acting) to suit individual patient needs [1].

Q: First agent shown to be effective in manic phase of Bipolar Disorder -

Lithium. ***Lithium*** - **Lithium** was the first mood stabilizer specifically demonstrating efficacy in treating the **manic phase of bipolar disorder**, revolutionizing its management. - Its discovery in the 1940s and subsequent clinical trials established it as the **gold standard** for acute mania and maintenance therapy. *Valproate* - While effective in treating **acute mania** and bipolar depression, **valproate** was introduced later than lithium as a mood stabilizer. - It works by **enhancing GABAergic transmission** and modulating voltage-sensitive sodium channels. *Lamotrigine* - Primarily indicated for the treatment of **bipolar depression** and as a maintenance therapy to prevent depressive episodes. - It has **limited efficacy** in treating acute manic episodes. *Carbamazepine* - An **anticonvulsant** that also possesses mood-stabilizing properties, effective in some cases of acute mania and rapid cycling. - Its use in bipolar disorder followed the introduction of lithium, and it is considered a **second-line treatment**.

Q: The drug of choice for obsessive-compulsive disorder:

Fluoxetine. ***Fluoxetine*** - **Fluoxetine** is a **selective serotonin reuptake inhibitor (SSRI)** and is considered a first-line treatment for **obsessive-compulsive disorder (OCD)** due to its efficacy in reducing obsessive thoughts and compulsive behaviors. - SSRIs, including fluoxetine, help increase serotonin levels in the brain, which is thought to be dysregulated in OCD. *Imipramine* - **Imipramine** is a **tricyclic antidepressant (TCA)** primarily used for depression and sometimes panic disorder. - While TCAs can have some serotonergic effects, they are generally less effective and have more side effects than SSRIs for treating OCD. *Chlorpromazine* - **Chlorpromazine** is a **first-generation antipsychotic** mainly used to treat psychosis, such as in schizophrenia, and severe agitation. - It works primarily by blocking dopamine receptors and is not indicated as a primary treatment for OCD, though it might be used as an adjunct in severe, treatment-refractory cases. *Benzodiazepine* - **Benzodiazepines** are anxiolytics used for short-term relief of anxiety and panic attacks. - They provide symptomatic relief from anxiety associated with OCD but do not address the core obsessive-compulsive symptoms and are not considered a primary treatment due to potential for dependency and lack of effect on underlying mechanisms.

Q: Second line drug in Enuresis is

Imipramine. ***Imipramine*** - **Imipramine** is a tricyclic antidepressant (TCA) and is the established **second-line pharmacological treatment** for **nocturnal enuresis** when first-line therapies (like desmopressin or behavioral interventions) are ineffective. - TCAs like imipramine work by increasing bladder capacity, reducing sleep arousal threshold (making it easier to wake up), and having anticholinergic effects that relax the detrusor muscle. - Imipramine is specifically approved for enuresis and has the most evidence among TCAs for this indication. *Haloperidol* - **Haloperidol** is a typical antipsychotic primarily used to treat psychotic disorders such as schizophrenia and Tourette's syndrome. - It is not indicated for the treatment of **enuresis** and has significant extrapyramidal side effects. *Chlorpromazine* - **Chlorpromazine** is another typical antipsychotic, known for its sedative and antiemetic properties, and is used in conditions like schizophrenia and bipolar disorder. - It is not used for **enuresis** and carries risks of sedation and various neurological side effects. *Diazepam* - **Diazepam** is a benzodiazepine primarily used for anxiety, muscle spasms, and seizures due to its anxiolytic, sedative, muscle relaxant, and anticonvulsant properties. - It is not an appropriate treatment for **enuresis** and could worsen it due to its sedative effects, which might reduce arousal in sleep.

Q: A 19-year-old man working as a driver comes to Psychiatrist with excessive anxiety and fear. He reports that every time he drives over a bump in the road, he is convinced that he has accidentally run over a small child. He has to pull over and check underneath his car for blood and retrace his driving route to look for any injured children. As a result, he is always late for work. He also has intrusive thoughts about stabbing his coworkers. He prays to try to erase these thoughts from his mind, but this rarely helps. First-line pharmacological treatment of this patient's condition primarily affects which of the following neurotransmitters?

Serotonin. ***Serotonin*** - The described symptoms (obsessive thoughts about harming others, compulsive checking, and attempts to neutralize thoughts with prayer) are highly characteristic of **Obsessive-Compulsive Disorder (OCD)**. - **Selective Serotonin Reuptake Inhibitors (SSRIs)** are the first-line pharmacological treatment for OCD, and they work by increasing the availability of serotonin in the synaptic cleft. *Dopamine* - Dopamine dysregulation is primarily implicated in disorders such as **schizophrenia** and **Parkinson's disease**, and to some extent in ADHD and addiction. - While dopamine may play a role in some aspects of OCD, typical first-line treatments do not primarily target dopamine. *Norepinephrine* - Norepinephrine is largely involved in the **fight-or-flight response**, attention, and arousal, and is a target for treating depression and anxiety disorders with SNRIs. - While some antidepressants that affect norepinephrine may be used if SSRIs are ineffective, they are not considered the primary neurotransmitter target for first-line OCD treatment. *Acetylcholine* - Acetylcholine is crucial for **muscle contraction**, learning, and memory, and imbalances are associated with conditions like **Alzheimer's disease** and myasthenia gravis. - It is not a primary target for the pharmacological treatment of OCD.

Q: In obsessive-compulsive disorder, which medication is NOT used for treatment?

Carbamazepine. ***Carbamazepine*** - **Carbamazepine** is an **anticonvulsant** and **mood stabilizer** primarily used for **epilepsy** and **bipolar disorder**. - It does not have a primary role in the treatment of **obsessive-compulsive disorder (OCD)**. *Sertraline* - **Sertraline** is a **selective serotonin reuptake inhibitor (SSRI)** approved for **OCD** treatment. - SSRIs are considered **first-line pharmacological agents** for OCD due to their efficacy in reducing obsessive thoughts and compulsive behaviors. *Clomipramine* - **Clomipramine** is a **tricyclic antidepressant (TCA)** that is a potent **serotonin reuptake inhibitor**. - It is one of the **most effective medications for OCD** and has been historically used as a first-line treatment. *Haloperidol* - **Haloperidol**, an **antipsychotic**, can be used as an **augmentation strategy** for OCD that is **resistant to SSRI treatment**. - It may be particularly helpful in OCD presentations with **comorbid tic disorders** or significant behavioral disinhibition.

Q: Electroconvulsive therapy is not useful in which of the following conditions?

Panic attacks. ***Panic attacks*** - ECT has **no established role** in the treatment of panic disorder or panic attacks. - **First-line treatments** include SSRIs, benzodiazepines, and cognitive behavioral therapy (CBT). - ECT is not indicated for **anxiety-predominant disorders** and there is no evidence supporting its use in panic attacks. *Depression* - ECT is a **highly effective** treatment for **severe major depression**, particularly: - **Treatment-resistant depression** (failed multiple antidepressant trials) - **Psychotic depression** (depression with psychotic features) - **Severe melancholic or catatonic depression** - Depression with **high suicide risk** requiring rapid response - ECT is considered one of the most effective treatments in psychiatry for severe depression. *Seizures* - ECT **induces controlled therapeutic seizures** to achieve psychiatric benefits, but it is **not a treatment for epilepsy** or seizure disorders. - The therapeutic effect in psychiatric conditions is mediated through the induced seizure and its neurobiological effects. - ECT does **not treat or prevent epileptic seizures**; patients with epilepsy can safely receive ECT with appropriate precautions. *Delirium* - ECT can be used in **highly selected cases** of refractory delirium, particularly: - Delirium with **severe agitation** unresponsive to medical management - Delirium in the context of **catatonia** - While not a first-line treatment, ECT **has documented efficacy** in specific refractory cases of delirium when conventional treatments have failed.

Q: Treatment modality NOT used in ADHD includes

Haloperidol. ***Haloperidol*** - **Haloperidol** is an **antipsychotic medication** primarily used to treat psychotic disorders (e.g., schizophrenia) and severe behavioral problems, tics, or Tourette's syndrome, not ADHD. - Its mechanism of action involves **dopamine D2 receptor antagonism**, which is not the primary pharmacological target for ADHD symptom management. *Atomoxetine* - **Atomoxetine** is a **selective norepinephrine reuptake inhibitor (SNRI)** and is a non-stimulant medication approved for the treatment of ADHD. - It works by increasing the levels of **norepinephrine** in the brain, improving attention and reducing impulsivity. *Dexamphetamine* - **Dexamphetamine** is a **central nervous system stimulant** used in the treatment of ADHD. - It works by increasing levels of **dopamine** and **norepinephrine** in the brain, leading to improved focus and reduced hyperactivity. *Clonidine* - **Clonidine** is an **alpha-2 adrenergic agonist** that can be used off-label or as an adjunct therapy for ADHD, particularly for managing hyperactivity, impulsivity, and sleep disturbances associated with the disorder. - It helps to regulate neurotransmitters that influence attention and behavior, although it is not a first-line treatment for core ADHD symptoms compared to stimulants.

Q: Bulimia nervosa is treated with

Escitalopram. ***Escitalopram*** - **SSRIs** like escitalopram are considered first-line pharmacological treatment for **bulimia nervosa**, especially when combined with **psychotherapy**. - They help reduce the frequency of **binge-eating** and **purging** episodes by modulating serotonin levels. *Clozapine* - This is an **atypical antipsychotic** primarily used for **treatment-resistant schizophrenia**. - It has significant side effects, including **agranulocytosis**, and is not indicated for eating disorders. *Reserpine* - An **antihypertensive** and **antipsychotic** drug that depletes catecholamines and serotonin from central neurons. - Due to its severe side effects, including **depression** and **parkinsonism**, it is rarely used today and not for eating disorders. *Pimozide* - A **first-generation antipsychotic** specifically approved for treating **Tourette's syndrome** but sometimes used off-label for severe tics. - It is not indicated for the treatment of bulimia nervosa and may carry significant **cardiac side effects**.

Q: Drug of choice for initial pharmacological treatment of Tourette syndrome -

Clonidine. ***Clonidine*** - **Clonidine** is often considered a first-line treatment for Tourette syndrome, especially in children and adolescents, due to its favorable side effect profile compared to typical antipsychotics. - As an **alpha-2 adrenergic agonist**, it helps reduce tic severity and associated symptoms like ADHD and impulsivity by modulating neurotransmitter release in the brain. *B complex* - **B vitamins** are generally not indicated for the treatment of Tourette syndrome, as there is no robust scientific evidence to support their efficacy in managing tics. - While essential for overall neurological health, they do not directly address the pathophysiology of tic disorders. *Haloperidol* - **Haloperidol**, a **first-generation antipsychotic**, is highly effective in reducing tics but is generally reserved for severe cases due to its significant side effects, including extrapyramidal symptoms and sedation. - It works by blocking **dopamine D2 receptors** but its adverse effects limit its use as an initial agent of choice. *Valproate* - **Valproate** is an anticonvulsant and mood stabilizer primarily used for epilepsy, bipolar disorder, and migraine prevention. - It is not a standard or preferred treatment for Tourette syndrome, as its efficacy in tic reduction is limited and it carries significant side effects.

Question 1

Which of the following drugs are used in the treatment of Attention-Deficit Hyperactivity Disorder (ADHD)?

Accepted Answer

All of the options

Answer

Atomoxetine

Answer

Dexmethylphenidate

Answer

Methylphenidate

Question 2

First agent shown to be effective in manic phase of Bipolar Disorder -

Accepted Answer

Lithium

Answer

Valproate

Answer

Lamotrigine

Answer

Carbamazepine

Question 3

The drug of choice for obsessive-compulsive disorder:

Accepted Answer

Fluoxetine

Answer

Imipramine

Answer

Chlorpromazine

Answer

Benzodiazepine

Question 4

Second line drug in Enuresis is

Accepted Answer

Imipramine

Answer

Haloperidol

Answer

Chlorpromazine

Answer

Diazepam

Question 5

A 19-year-old man working as a driver comes to Psychiatrist with excessive anxiety and fear. He reports that every time he drives over a bump in the road, he is convinced that he has accidentally run over a small child. He has to pull over and check underneath his car for blood and retrace his driving route to look for any injured children. As a result, he is always late for work. He also has intrusive thoughts about stabbing his coworkers. He prays to try to erase these thoughts from his mind, but this rarely helps. First-line pharmacological treatment of this patient's condition primarily affects which of the following neurotransmitters?

Accepted Answer

Serotonin

Answer

Dopamine

Answer

Norepinephrine

Answer

Acetylcholine

Question 6

In obsessive-compulsive disorder, which medication is NOT used for treatment?

Accepted Answer

Carbamazepine

Answer

Sertraline

Answer

Clomipramine

Answer

Haloperidol

Question 7

Electroconvulsive therapy is not useful in which of the following conditions?

Accepted Answer

Panic attacks

Answer

Depression

Answer

Seizures

Answer

Delirium

Question 8

Treatment modality NOT used in ADHD includes

Accepted Answer

Haloperidol

Answer

Atomoxetine

Answer

Dexamphetamine

Answer

Clonidine

Question 9

Bulimia nervosa is treated with

Accepted Answer

Escitalopram

Answer

Clozapine

Answer

Reserpine

Answer

Pimozide

Question 10

Drug of choice for initial pharmacological treatment of Tourette syndrome -

Accepted Answer

Clonidine

Answer

B complex

Answer

Haloperidol

Answer

Valproate

Psychopharmacology — MCQs

Psychopharmacology — MCQs

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