When a patient has depressive symptoms, it is necessary to investigate the possibility of a medical, psychiatric, and/or drug-induced cause. You will find these exclusions also listed in DSM5. All depressed patients should have a complete physical examination, mental status examination, basic laboratory work-up and suicide risk evaluation (There is an increased risk of suicide at the beginning of the antidepressant therapy)
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Pharmacological causes of depression
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Antidepressants are used in treatment of depression, as well as some anxiety, pain and eating disorders, but not B______ D_______.
bipolar disorder
4-6
Principles: Most studies find combination of pharmacotherapy + cognitive therapy more efficacious than either therapy alone. Efficacy of different antidepressants is generally comparable across and within classes.
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For patients with unipolar major depression who are initially treated with antidepressants, newer agents such as SSRIs / SNRIs rather than other antidepressants should be tried. It is critical to take into account patient specific factors such as prior response to a given class of medications, tolerability of adverse effects, comorbid conditions (eg. avoiding anticholinergics in glaucoma or BPH; avoiding bupropion in seizure disorders), etc
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different class
second
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______ - Selective serotonin re-uptake inhibitor
SSRIs
_________ (psych drug class)
SSRIs - Selective serotonin re-uptake inhibitor
5
o Fluvoxamine inhibits CYP1A2, 3A4, 2C9, 2C19
o Fluoxetine and paroxetine inhibit CYP2C9 and 2D6
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o Citalopram, escitalopram and sertraline do not block P450 enzymes
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_______ (psych drug class)
o May be associated with n/v, weight gain (especially paroxetine), etc.
o 30-40% of patients report loss of libido, delayed orgasm or diminished arousal
o Class effect
SSRIs
reproductive
SNRIs block both SER-T and NE-T (re-uptake of serotonin and norepinephrine)
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examples of this drug class include venlafaxine, duloxetine, desvenlefaxine
SNRIs
SNRIs
Which psych drug class?
SNRIs
SN______ (psych drug class)
SNRIs
Because of their side effects and potential for lethal overdose (even if taken alone), _________ have essentially been replaced (ie. NOT initial therapy) by SSRIs and SNRIs as the first choice for treatment of depression. They still are used in refractory cases and for other indications (enuresis, migraine prophylaxis, neuropathies, etc).
TCAs