29.04 - the day of the Gnarklebark Flashcards
When can clozapine be used in schizophrenia?
Only after 2 different antipsychotics have been tried
treatment resistant
Risks with clozapine
Neutropenia and fatal agranulocytosis
Side effects of Clozapine
Sedation!
Weight Gain!
Hypersalivation Raised triglycerides Cardiomyopathy DM Lowers seizure threshold
How is clozapine treatment started
Dose needs titrating.
Check FBC weekly for 18 weeks. THen 2 weekly for a year. Then 4 weekly.
BP, pulse and weight, Temp is also checked YEARLY (physical health). Ask about smoking and alcohol
Safety netting about high fever, chills, bone aches
Side effects of 1st generation antipsychotics
EXTRAPYRAMIDAL: Rigidity Bradykinesia Dystonias Akathisia Tardive dyskinesia
Neuroleptic Malignant syndrome
Describe neuroleptic malignant syndrome
Life threatening
Fever
Altered consciousness
Muscle rigidity
Autonomic dysfunction
Side effects of 2nd generation antipsychotics
Fewer extrapyramidal SE
Metabolic effects: Increase appetite Weight gain DM Sedation Hypotension Dry mouth Constipation
TCAs side effects (Amitryptiline)
Sedation
Weight gain
Dizziness
Hypotension
NOT TERATOGENIC, HOWEVER (used in pregnancy)
Antidepressants in pregnancy
Fluoxetine most commonly prescribed
Amitryptiline is also fine, but high OD risk
NO PAROXETINE!! or SNRIs (venlafaxine, dulexitine) or MAOIs or Mirtazapine
How long are SSRIs used for?
At least 4 wks, to say that treatment has failed.
Continue for 6 months following symptom resolution
Withdrawal symptoms of SSRIs
Anxiety
Dizziness
Sleep disturbance
Nausea
Antidepressants in Breastfeeding
Imiparime and Nortriptyline are prefered
Paroxetine or Sertraline can be used
How is lithium started?
Weight and BP measured annually
Give contraception and folic acid advise.
Check levels weekly and titrate up. Once optimum dose, check every 3 months.
U and E and TFTs every 6 months
SE of lithium
GI upset Fine tremor Polyuria Polydipsia Metallic taste Weight gain Oedema
Toxic symptoms of lithium
Diarrhoea Course tremor Ataxia Dysarthria Nystagmus Confusion Convulsions
AKI
Which is the only mood stabiliser that can be used in pregancy
Lithium
NOT in breastfeeding
still teratogenic, but less than carbamazepine or sodium valproate
which mood stabiliser may be used in breastfeeding
lamotrigine in low dose
Common symptoms of social phobia
Blushing or shaking
Fear of vomiting
Urgency or fear of micturition
Marked feature of being the focus of attention, embarrassment or humiliation.
Restricted to fearful situations.
AVOIDANCE
Questions To distinguish OCD from schizophrenia
Thoughts are acknowledged as excessive/unreasonable
NOT due to thought insertion
Compulsions originate in the mind of the patientand are not imposed by outside persons or influences
Medications for anxiety
All anti-depressants are anxiolytics (brief increase initially)
Beta blockers for autonomic symptoms: HR, sweating etc
Lorazepam has a short half-life
Diazepam has a long
<4 weeks due to addictive nature
What is an acute stress reaction
<1month after stressful even
For >3 days Anxiety Depression Numbness Detachment Derealisation Insomnia Restlessness Anger
Alcohol/drug abuse?
Management of acute stress reaction
Reduce emotional response: talk to friends/family/professionals
Encourage recall to debrief
Teach coping skills
Anxiolytics only used if severe anxiety
Hypnotics if sleep distubrance