16. Drugs for Depression and Anxiety Flashcards
What are the core symptoms of depression?
Depressed mood
Anhedonia
Lack of energy
What are the treatment options for depression?
Mild: CBT
Moderate to severe: pharmacological
Severe resistant: electroconvulsant therapy
Name 2 tricyclic antidepressants
Imipramine
Amitriptyline
What is the MOA of tricyclic antidepressants?
Stop serotonin and NA reuptake
What are the side effects of tricyclic antidepressants?
H1 receptors: drowsiness and sedation
a1 adrenergic: postural hypotension, dizziness
Muscarinic: dry mouth, blurred vision, memory impairment
Narrow therapeutic range
Name 2 SSRIs
Fluoxetine
Sertraline
What is the MOA of SSRIs?
Selectively block serotonin uptake
What are the side effects of SSRIs?
nausea, bleeding
Headache, anxiety, insomnia, sexual dysfunction
Hyponatraemia
Serotonin syndrome
When are serotonin norepinephrine reuptake inhibitors used?
SSRIs don’t work
Name 3 SNRIs
Venlafaxine
Desvenlafaxine
Duloxetine
What are the side effects of SNRIs?
Nausea
Dose-related hypertension
When are monoamine oxidase inhibitors used?
Rarely as lethal interactions
What are the side effects of monoamine oxidase inhibitors?
With tyramine causes intracranial haemorrhage
Headache, hypotension
What are the active compounds in St John’s Wort?
Hyperforin and adhyperforin
What is the first line treatment for generalised anxiety disorders?
SSRI such as sertaline
2-3 week lag before working so co-prescribe short term benzodiazepine