DEPRESSIVE DISORDERS
A mental health disorder characterised by persistently depressed
mood or loss of interest in activities, causing significant
impairment in daily life
Possible causes include a combination of biological,
psychological and social sources of distress. It is also called
major depressive disorder.It impacts mood and behavi\our as well as
various physical functions such as appetite and sleep.
PHARMACOLOGICAL INTERVENTIONS FOR DEPRESSIVE
DISORDERS
In all patient population, the combination of medication and
psychotherapy generally provides the quickest and most sustained
response
Drugs used in the treatment of depresssion includes the
following
- Selective serotonin reuptake inhibitors
- Serotonin /norepinephrine reuptake inhibitors
- Atypical antidepressants
- Tricyclic antidepressants
- Monoaminase oxidase inhibitors
- N-methyl-D aspartate receptor antagonists
Selective serotonin reuptake
inhibitors
- eg: fluoxetine, citalopram
- SSRIs are frequently prescribed type of antidepressants. SSRI
work by helping inhibit the breakdown of serotonin in the brain,
resulting in higher amounts of this neurotransmitter
- Serotonin is a brain chemical that is believed to be
responsible for mood. It may help improve mood and produce healthy
sleeping patterns.
Serotonin/norepinephrine reuptake
inhibitors
- eg: desvenlafaxine, duloxetine, levomilnacipran,
venlafaxine
- SNRIs are a class of medications that are effective in treating
depression.
- SNRIs are also sometimes used to treat other conditions such as
anxiety disorders and long term pain, especially nerve pain.
- SNRIs ease depression by affecting chemical messengers used to
communicate between brain cells. SNRIs work by effecting changes in
brain chemistry and communication in brain nerve cell circuitry
known to regulate mood, to help relieve depression.
- SNRIs block the reabsorption of the neurotransmitters
serotonin, and norepinephrine in the brain
Atypical antidepressants
- eg: Bupropion, mirtazapine, nefazodone, trazodone
,vortioxetine
- Atypical antidepressants are not typical- they dont fit into
other classes of antidepressants.
- Atyppical antidepressants ease depression by affecting chemical
messengers used to communicate between brain cells. Like most
antidepressants, atypical antidepressants work by ultimately
effecting changes in brain chemistry and communication in brain
nerve cell circuitry.
Tricyclic antidepressants
- eg: Amitriptyline, amoxapine, dexepin, nortriptyline
- Tricyclic antidepressants help keep more serotonin and
norepinephrine available to the brain. These chemicals are made
naturally by the body and are thought to affect the mood.
Monoaminase oxidase inhibitor
- eg: selegiline, phenelzine, tranylcypromine
- MAOIs work with the chemicals in the brain called
neurotransmitters that allow brain cells to communicate with each
other. Depression is thought to be caused by low levels of the
neurotransmitters which collectively called monoamines.
N-methyl D- aspartate receptor
antagonists
- eg:memantine, tenocyclidine, ketamine, dextromethorphan
- Class of drugs that work to antagonize or inhibit the action of
the N-methyl-D-aspartate receptor .
SIDE EFFECTS
SSRI AND SNRI
- Feeling agitated, shaky or anxious
- Feeling and being sick
- Indigestion
- Loss of appetite
- Dizziness
- Insomnia
- Low sex drive
TRICYCLIC ANTIDEPRESSANTS
- Dry mouth
- Slight blurring of vision
- Constipation
- Drowsiness
- Problems passing urine
- Weight gain
- Excessive sweating
- Heart rhythm problems
NURSING INTERVENTIONS
- Provide for patients physical needs: Assist with self care and
personal hygiene, encourage patient to eat, give warm milk or back
rubs at bedtime to improve sleep
- Assume active role in iniatiating communication: This can be
done by sharing observationof patients behaviour, speaking slowly
and allowing ample time for him to respond, encourage him to talk
and write down feelings and by providing a structured routine which
may include noncompetative activities
- Educate patient about depression: Explain that depression can
be eased by expressing feelings and engaging in pleasurable
activities.
- Help patient recognise distorted perceptions and link them to
his depression
- Ask patient whether he thinks about death or suicide
PSYCHOSOCIAL INTERVENTIONS FOR DEPRESSION
There are a number of evidence based psychotherapeutic
treatments for adults with major depressive disorder.
- Behavioral therapy
- Cognitive therapy
- Cognitive behavioural analysis of psychotherapy
- Interpersonal psychotherapy
- Problem solving therapy
- Self management therapy
- interpersonal psychotherapy
- Cognitive behavioural therapy