Psychiatric treatment aims to manage mental health disorders, alleviate symptoms, and improve patients’ overall quality of life. Treatment combines physical and psychological methods to address different aspects of mental illness, supporting recovery and helping patients maintain stability.

Goals of Treatment in Psychiatry

• Reduction of Symptoms Severity: Alleviating symptoms such as anxiety, depression, hallucinations, or manic episodes.
• Maintenance of Stability: Preventing relapse or the re-emergence of severe symptoms.
• Enhanced Quality of Life: Helping patients achieve and sustain mental well-being, social integration, and functionality.
• Promoting Recovery: Aiding patients in gaining control over their lives and maintaining a sense of purpose and autonomy.

Types of Treatment Modalities

Psychiatric treatments are typically divided into two main types:

1. Physical (Biomedical) Treatments: Directly target brain chemistry or brain function.
2. Psychological (Therapeutic) Treatments: Focus on altering thought patterns, behaviors, and emotional responses.

Many patients receive a combination of physical and psychological treatments for comprehensive care.

Physical Therapy

• Drug Treatment (Psychopharmacology)
• ElectroConvulsive Therapy.
• Occupational Therapy
• Recreational Therapy

Drug Treatment (Psychopharmacology)

• Antipsychotics (Check Mental Day 4)
• Antidepressants (Check Mental Day 5)
• Mood Stabilizers (Check Mental Day 2)
• Anxiolytics (Check Mental Day 3)
• Anti Seizures (Check Mental Day 3)

Antipsychotic Medications

Antipsychotic medications are primarily used to manage and alleviate symptoms of psychosis, including severe mental conditions such as schizophrenia, schizoaffective disorder, and bipolar disorder when presenting with psychotic features.

They help reduce:

• Hallucinations: Sensory perceptions (auditory, visual, tactile, olfactory, gustatory) that occur without external stimuli.
• Delusions: Fixed, false beliefs that are not amenable to reason or evidence. Strongly held false beliefs, often paranoid or grandiose.
• Confused or Disorganized Thinking: Disrupted thought processes, reflected in illogical speech and behavior.
• Altered Perceptions: Distorted sense of reality.
• Disorganized Speech: Inability to form coherent sentences or connect thoughts.
• Behavioral Disruptions: Erratic, impulsive, or inappropriate behavior.
• Catatonia: Unresponsiveness or rigidity in extreme cases of psychosis.

Mechanism of Action

Antipsychotic drugs primarily target dopamine pathways in the brain, as excess dopamine activity is linked to psychotic symptoms. The main mechanisms include:

1. Dopamine Receptor Blockade: Most antipsychotics work by blocking dopamine D2 receptors in the brain, especially in regions like:
   • Basal Ganglia: Impacts motor function, often leading to motor side effects.
   • Hypothalamus: Regulates endocrine and autonomic functions.
   • Limbic System: Manages emotions and behavior, reducing hallucinations and delusions.
   • Brain Stem: Helps in managing autonomic functions.
   • Medulla: Involvement in central nervous system functions.
2. Dopamine Transmission Inhibition: These drugs inhibit dopamine-mediated transmission in synapses, which helps decrease the excitation and abnormal activity associated with psychotic symptoms.
3. Serotonin-Dopamine Interactions (Atypical Antipsychotics): Newer atypical antipsychotics often target both dopamine and serotonin receptors, providing a balanced mechanism that reduces psychotic symptoms with fewer side effects.

Types and Examples of Antipsychotic Medications

Antipsychotics are generally divided into two major categories:

• typical (first-generation) and
• atypical (second-generation)

Atypical (Second-Generation) Antipsychotics

These drugs have a broader mechanism, affecting both dopamine and serotonin pathways, making them less likely to cause severe motor side effects.

Common Medications:

• Risperidone: Effective for both positive and negative symptoms with mild side effects.
• Olanzapine: Highly effective but may cause significant weight gain and metabolic issues.
• Clozapine: Reserved for treatment-resistant schizophrenia due to a risk of agranulocytosis; requires regular blood monitoring.
• Quetiapine: Known for its sedative effects, often used in acute settings or when sedation is desired.

Advantages:

• Lower risk of extrapyramidal symptoms (EPS).
• Effective in treating negative symptoms (social withdrawal, lack of motivation) in schizophrenia.
• Broader mechanism of action may help treat bipolar and depressive psychotic symptoms.

Typical (First-Generation) Antipsychotics

Older drugs that primarily act on dopamine receptors with potent effects on psychosis but higher risks of movement-related side effects.

Common Medications:

• Haloperidol: Highly potent and commonly used in acute psychosis, available in injectable forms for emergencies.
• Chlorpromazine: Often used for sedation in psychosis; more sedative and lower potency than haloperidol.
• Trifluperazine: Moderate potency with a focus on treating agitation and severe anxiety.
• Fluphenazine: Available as a long-acting injection, commonly used for maintenance therapy in chronic psychotic disorders.

Advantages:

• High availability and cost-effectiveness.
• Suitable for use in emergencies due to strong dopamine receptor antagonism.
• Injectable forms allow for extended control of symptoms.

Adverse Side Effects of Antipsychotics

Antipsychotic medications, especially typical antipsychotics, can cause a range of side effects, some of which may be serious. Side effects are classified into several categories based on their mechanism and impact on patient health.

Extrapyramidal Symptoms (EPS)

These are motor-related side effects resulting from dopamine blockage in pathways associated with movement.

1. Neuroleptic-Induced Parkinsonism.
   • Symptoms: Rigidity, tremors, bradykinesia (slowed movement), stooped posture, drooling, akinesia (loss of movement), and ataxia.
   • Management: Treated with anticholinergic agents (e.g., Benztropine) or medications like amantadine.
2. Acute Dystonia: Involuntary muscle contractions affecting the neck, jaw, tongue, and sometimes entire body. Severe cases involve oculogyric crisis (eyes rolled upward).
   • Treatment: Often managed with anticholinergics, antihistamines (e.g., diphenhydramine), beta-blockers, benzodiazepines, or dopamine agonists to relax muscles.
3. Akathisia: A feeling of intense restlessness, often leading to pacing or repetitive movements, contributing to patient discomfort.
   • Treatment: Commonly treated with beta-blockers (e.g., propranolol), benzodiazepines, and clonidine.
4. Tardive Dyskinesia: A delayed, potentially irreversible side effect involving abnormal, involuntary movements such as lip-smacking, grimacing, tongue thrusting, and irregular limb movements.
   • Prevention and Management: No definitive treatment, but reducing the dose or switching to atypical antipsychotics may help; valbenazine and deutetrabenazine are also FDA-approved for managing tardive dyskinesia.
5. Neuroleptic Malignant Syndrome (NMS): A life-threatening reaction often occurring within the first two weeks of treatment.
   • Symptoms: Severe muscle rigidity, hyperthermia, altered mental status, autonomic instability (unstable BP, tachycardia), excessive sweating, and urinary incontinence.
   • Management: Requires immediate discontinuation of antipsychotic, supportive care (IV fluids, cooling), and administration of drugs like dantrolene or bromocriptine in severe cases.

Autonomic Side Effects

• Dry Mouth, Constipation, and Blurred Vision: Due to anticholinergic properties of certain antipsychotics.
• Urinary Retention and Orthostatic Hypotension: Especially common in drugs like chlorpromazine.
• Impotence and Ejaculation Problems: Related to autonomic nervous system effects.

Other Side Effects

C. Seizures

• Increased Seizure Risk: Some antipsychotics lower the seizure threshold, particularly clozapine, necessitating caution in patients with seizure history.

D. Sedation

• Cause: Sedative effects are more pronounced with certain antipsychotics (e.g., chlorpromazine, quetiapine) due to their antihistaminergic action.
• Implication: While sometimes beneficial in agitated patients, sedation can interfere with daily functioning.