Antipsychotics Flashcards
The hyperactive, positive symptoms of psychosis are due to what?
Increased Dopamine in the Mesolimbic Region
The hypoactive, negative symptoms of psychosis are due to what?
Decreased Dopamine in the Mesocortical Region
Negative and Cognitive Symptoms are due to which brain area?
DFPFC
Negative and Affective Symptoms are due to which brain area?
VMPFC
Which area of the brain is responsible for the prolactin related side effect of antipsychotics?
Tuberoinfundibular Region
What are the drug abuse/withdrawal causes of Psychosis?
- Hallucinogens
- Amphetamines
- Cocaine
- Alcohol Withdrawal
- Sedative Withdrawal
What are the toxic causes of Psychosis?
- Heavy Metals
- Digitalis
- L-Dopa
- Pollutants
What are the metabolic causes of Psychosis?
- Hypoglycemia
- Porphyria
- Cushing’s syndrome
- Abnormal Calcium or Thyroid Levels
What are the nutritional causes of Psychosis?
- Thiamine Deficiency
- Niacin Deficiency
- Vitamin B12 Deficiency
What are some neurological causes of Psychosis?
- Stroke
- Tumor
- Alzheimer’s
- Pick’s Disease
- Hypoxic Encephalopathy
What are the two Types of Psychosis?
- Affective Disorders or Manic Depressive Disorders
2. Schizophrenia
How are Affective Disorders or Manic/Depressive Disorders treated?
With antidepressants or mood stabilizers
Which drug class is better to treat Positive Symptoms of Schizophrenia?
Typical Antipsychotics (Neuroleptics)
Which drug class is better to treat Negative Symptoms of Schizophrenia?
Atypical Antipsychotics (Second Generation)
List 6 common Positive Symptoms
- Agitation
- Delusions
- Disorganized Speech
- Disorganized Thinking
- Hallucinations
- Insomnia
List 6 common Negative Symptoms
- Apathy
- Flat affect
- Lack of motivation
- Lack of pleasure
- Poverty of Speech
- Social Isolation
What are the three classes of Atypical Antipsychotics?
- Azepines
- Benzisoxazole
- Benzisothiazolylpiperzine
Name the 6 Atypical Antipsychotic Drugs
- Clozapine
- Olanzapine
- Quetiapine
- Risperidone
- Arpiprazole
- Ziprasidone
What are the 5 classes of Typical Antipsychotics
- Phenothiazines
- Thioxanthenes
- Butyrophenones
- Azepines
- Dihydroindolone
What are the 12 Typical Antipsychotic Drugs?
- ChlorpromaZINE
- FluphenaZINE
- ThioridaZINE
- TrifluoperaZINE
- MesoridaZINE
- PerphenaZINE
- ThioTHIXENE
- ChlorproTHIXENE
- HALOPERIDOL
- SPIPERONE
- LOXAPINE
- MOLINDONE
What is the MOA of Atypical Antipsychotics?
Competitive Blockade of Serotonin Receptors (and less so Dopamine)
What is the MOA of Typical Antipsychotics?
Competitive blockade of Dopamine Receptors (and less so Serotonin)
Which two features result in Atypicals having fewer Parkinson like side effects?
- Higher affinity for Serotonin Receptors
2. Specific to Mesolimbic over Nigro-Striatal
Adverse Effects of Antipsychotics are due to blockade of which receptors?
- Alpha 1 Adrenergic
- Histamine
- Muscarinic
Which diseases may be treated by Antipsychotic drugs?
- Psychosis
- Tourette’s
- Huntington’s
- Hiccough
- Nausea
- Motion Sickness
What is excreted from the kidneys after use of antipsychotics?
Glucuronide Conjugates
How long before positive symptoms go away?
1-3 weeks