Psychopharmacology. Incorrect assumptions Patient is triaged as psychiatric, therefore patient is...
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Transcript of Psychopharmacology. Incorrect assumptions Patient is triaged as psychiatric, therefore patient is...
![Page 1: Psychopharmacology. Incorrect assumptions Patient is triaged as psychiatric, therefore patient is psychiatric. Patient has a history of psychiatric presentations,](https://reader030.fdocuments.us/reader030/viewer/2022032701/56649ca15503460f94960907/html5/thumbnails/1.jpg)
Psychopharmacology
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Incorrect assumptions
• Patient is triaged as psychiatric , therefore patient is psychiatric .
• Patient has a history of psychiatric presentations , therefore this presentation is psychiatric .
• Patient is young , therefore this must be a functional disorder .
• Abnormal vital signs are due to mental/emotional state .
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= ?
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Traditional Antidepressants
• TCA– amitriptylline – clomipramine – doxepin -desipiramine– imipramine – nortriptylline – trimipramine
• MAOIs
– Tranylcypromine
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Newer antidepressants• SSRIs
– citalopram
– fluoxetine – fluvoxamine – paroxetine – sertraline
• RIMA – moclobemide
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Newest antidepressants
SNRI :VenlafaxineDuloxetine
DNRI:Bupropion
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Choice of Initial Antidepressant in Adults
• Symptom profile • Side effect profile in relation to the individual patient• Patient preference• Cost• History of previous response of the patient or family members• Comorbid psychiatric or medical illnesses• Potential drug-drug interaction
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SSRI: Side Effect Profile
• Headache• Anxiety and Agitation • Nausea • Diarrhea • Sexual dysfunction and Sleep disruption or Somnolence
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SSRI: Rare but Dangerous Side Effects
• UGI bleeding (platelet dysfunction), esp. in combo with NSAID’s or other blood-thinning agents
• SIADH• Osteoporosis and fractures in the elderly• Serotonin syndrome• SSRI discontinuation syndrome (slow taper)
• Flu-like symptoms• Insomnia• Nausea• Imbalance• Sensory disturbances• Hyperarousal (agitation/anxiety)
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SNRI: Side Effect Profile
• As with SSRI’
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TCA: Side Effect Profile
• Antihistamine – weight gain & sedation
• Anticholinergic
• Anti-alpha adrenergic – dizziness, orthostatic hypotension
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MAOI: Side Effect Profile
• Hypertention crisis
• Orthostatic hypotension
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Benzodiazepinesalprazolam short-mid
chlordiazepoxide long
clonazepam mid-long
diazepam long
flurazepam long
lorazepam short-mid
oxazepam short-mid
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Anxiolytics: Side effects
• Memory decline• Addiction(dependency &withdrawal)• Ataxia/Falls• Drowsiness/dizziness/disinhibition
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Anxiolytics:Contraindications
• With COPD or sleep apnea
• Avoid in the elderly
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Traditional Antipsychotics
• Phenothiazines– chlorpromazine – fluphenazine – flupenthixol – -perphenazine– pimozide – thioridazine – trifluoperazine
• Butyrophenon– haloperidol
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Newer Antipsychotics
• Atypical agents– aripiprazole– clozapine – risperidone – quetiapine – olanzapine
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Neuroleptic Malignant Syndrome
• Fever• Encephalopathy • Vital signs unstable• Elevated CPK/ WBC• Rigidity
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Lithium: Side Effect Profile
• Lethargy• Insipidis• Tremor/Teratogen (increased risk Ebstein’s
anomaly in first trimester)• Hypothyroid• Increased weight• Vomitting, nausea, GI• Miscellaneous: EKG changes (T wave flattening
or inversion), acne, hair loss
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Valproic Acid: Acute Side Effect Profile
• Sedation • Tremor • Unsteadiness (dizziness)• Nausea /GI
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Valproic Acid:longer term side effect
monitoring• On the surface:
– Acne , hair loss
• Under the surface: – weight gain, edema
• Systemic: – blood dyscrasias (esp plt dysfn) – liver dysfunction +/- elevated ammonia levels– reproductive changes incl menstrual irregularities ,
PCOS, teratogenicity
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Lamotrigene: Side Effect Profile
• Rash – • Activation , Ataxi• , Sedation, Sleep disturbances• , Hypersensitivity reactions