Antidepressants Flashcards
Risks of antidepressants
Serotonin syndrome.
Hyponatraemia.
Withdrawal syndrome.
Switching or swapping medications.
Interactions.
Risk factors for adverse effects
Old age, female, low body weight, reduced renal function
Symptoms of serotonin syndrome
Restlessness, sweating, tremor, shivering, fits
Examples of SSRIs
Citalopram, escitalopram, Flavoxamine, fluoxetine, paroxetine, sertraline
Examples of TCAs
Amitriptylline, clomipramine, dosulepin, imipramine, lofepramine
Examples of SNRIs
Venlafaxine and Duloxetine
Examples of MAOIs
Tranylcypromine, phenelzine and isocarboxazid
Side effects of SSRIs
Nausea, sexual dysfunction, insomnia
What medication is first line
Sertraline for anxiety and depression
Side effects of TCAs
Drowsiness, weight gain, dry mouth, constipation
Side effects of SNRIs
Nausea, insomnia, sexual dysfunction
Side effects of MAOIs
Weight gain, sleep problems
Side effetcs of Mirtazapine
Weight gain, sedation
Side effects of Vortioxetine
Abnormal dreams, dizziness, nausea, diarrhoea, constipation, vomiting, pruritis
What are the actions of Agomelatine
3rd line option only initiated in secondary care. Sedative. USed where patient is intolerant to 5HT
How long is withdrawal of antidepressants
At least over 4 weeks ro reduce risk of discontinuation symptoms
Discontinuation symptoms of SSRIs
Coryzal, shock like sensations, dizziness, insomnia, vivid dreams, irritability
Discontinuation symptoms with TCAs
Coryzal symptoms, insomnia, excessive dreaming
Discontinuation symptoms of MAOIs
Agitation, irritability, ataxia, movement disorders, insomnia, somnolence, vivid dreams, cognitive impairment, slowed or pressured speech
Strategies in treatment resistant depression
Lithium augmentation.
Venlafaxine high dose.
Quetiapine or aripiprazole augmentation.
Mirtazapine with either vanlafaxine or SSRI.
Lamotrigine augmentation.
ECT
How often are lithium levels monitored
3-4 months
Side effects of lithium
Dry mouth, metallic taste, thirst, increased urine, dizziness, mild diarrhoea, mild tremor, nausea