CNS - Depression Flashcards
Mild treatment depression?
CBT (Cognitive behavioural Therapy)
Moderate treatment for depression
Antidepressants (SSRI)
Pt returns 1wk later and says they feel worse after taking anti depressants, what should they do?
Continue to take as
First 1-2 weeks patient may feel worse
At what point is an antidepressant deemed ineffective?
4 weeks normal pt
Or 6 weeks in elderly
Pt is on remission how long after do they need to take?
6 months normal pt
1 year in elderly
2 years if recurrent
Depression first line?
SSRI
If SSRI doesn’t work then what?
1) Increase in dosage
2) Change to another SSRI
3) MIRTAZAPINE
4) If severe : TCA or venlafaxine
5) Mao inhibitors (Specialist/Rare)
V rare another class lithium
Severe refractory depression?
Electroconvulsive therapy
Next step after alternate SSRI doesn’t work?
Mirtazepine
Severe depression treatment?
TCA or Venlafaxine
If pt is 17 or less what antidepressant should be used?
Fluoxetine
If pt is at risk of bleeding which antidepressant should be used?
Mirtazepine
If pt is at risk of cardiac events which antidepressant should be used?
Sertraline
Why SSRI’s are preferred over TCA’s ?
Better tolerated
Overdose SSRI is a lot safer than TCA
SSRI SIDE EFFECTS?
GI disturbances
Weight gain
Sexual dysfunction
Insomnia (TAKE IN MORNING)
Risk of bleeding
QT Prolongation (Escitalopram/Citalopram)
Can I take Grapefruit juice with SSRI?
NO, AVOID GRAPEFRUIT JUICE (CYP450 Enzyme inhibitor)
It can increase plasma conc of SSRI
Leading to toxicity or even serotonin syndrome
SSRI is a CYP450 enzyme substrate
Can pt take OTC St John’s wort with SSRI?
No as it reduces SSRI effectiveness
St johns wort is a CYP450 inducer