18. OBSESSIVE COMPULSIVE DISORDER

Obsessive Compulsive Disorder (OCD) is a mental health condition where a person experiences unwanted, repetitive thoughts (obsessions) and feels driven to perform repetitive actions (compulsions). These thoughts and behaviors cause distress and interfere with daily life. OCD is a chronic condition, but effective treatments can help patients manage symptoms and lead normal lives.


1. Understanding OCD

OCD involves a cycle of obsessions and compulsions:

  • Obsessions: Intrusive thoughts or fears (e.g., fear of contamination).
  • Compulsions: Repeated actions done to reduce anxiety (e.g., excessive handwashing).

Most patients know their thoughts are irrational but cannot control them.


2. Causes and Risk Factors

Biological Causes

  • Imbalance in neurotransmitters (especially serotonin)
  • Overactivity in brain circuits related to fear and behavior
  • Genetic predisposition

Environmental Factors

  • Stressful life events
  • Trauma or infection (rarely)
  • Personality traits (perfectionism)

3. Symptoms of OCD

Common Obsessions

  • Fear of germs or contamination
  • Doubts about safety (e.g., “Did I lock the door?”)
  • Unwanted aggressive or sexual thoughts
  • Need for symmetry or order

Common Compulsions

  • Repeated handwashing or cleaning
  • Checking locks or appliances multiple times
  • Counting or repeating actions
  • Arranging items in a specific order

4. Diagnosis

  • Clinical interview and psychiatric evaluation
  • Symptoms present for most days for at least two weeks
  • Obsessions and compulsions must cause distress or impair functioning
  • Use of standardized tools like the Yale-Brown Obsessive Compulsive Scale (Y-BOCS)

5. Treatment of OCD

OCD responds well to a combination of medication and behavioral therapy.

A. Pharmacological Treatment

1. SSRIs (First-line)

Higher doses are usually required compared to depression treatment.

  • Fluoxetine
  • Sertraline
  • Fluvoxamine
  • Paroxetine
  • Escitalopram

2. Clomipramine (TCA)

Effective but used when SSRIs are not adequate due to more side effects.

3. Augmentation Strategies

  • Atypical antipsychotics (e.g., Risperidone) for resistant cases
  • Combination of SSRI + low-dose antipsychotic

6. Non-Pharmacological Treatment

A. Cognitive Behavioral Therapy (CBT)

The most effective psychotherapy for OCD.

B. Exposure and Response Prevention (ERP)

  • Patient is exposed to fear-inducing situations
  • They are prevented from performing the compulsion

This helps reduce anxiety over time and breaks the OCD cycle.

C. Lifestyle Measures

  • Stress management
  • Sleep hygiene
  • Regular exercise

7. Complications

  • Anxiety and depression
  • Reduced productivity
  • Social withdrawal
  • Relationship conflicts
  • Severe functional impairment if untreated

8. Prevention and Early Management

  • Identify early warning signs such as repeated checking or intrusive thoughts
  • Seek early counseling during stressful periods
  • Avoid substances like alcohol or stimulants
  • Maintain regular sleep patterns

9. Role of the Pharmacist

  • Provide counseling on correct medication use
  • Monitor for side effects of SSRIs and TCAs
  • Identify potential drug–drug interactions
  • Encourage adherence since OCD requires long-term therapy
  • Educate families about the nature of compulsions and support systems
  • Refer patients who show worsening symptoms or suicidal thoughts

Detailed Notes:

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