Drug Therapy Flashcards
(26 cards)
What’s the aim of drug therapy?
Aims to manipulate a patient’s bodily processes, with the goal of reducing the symptoms of their mental health disorder.
Used to treat mental illnesses like schizophrenia, depression and anxiety.
Treat with drugs to change chemical imbalances in the brain.
Give examples of Mental illnesses treated with drug therapy.
Schizophrenia
Depression
Anxiety
What is Schizophrenia?
Caused by excess dopamine within the brain, leading to symptoms such as hallucinations or delusions.
What are antipsychotic drugs?
To treat schizophrenia E.g hallucinations and delusions
What are the two types of antipsychotic drugs?
Conventional (Typical)
Atypical
Give an example of a Conventional drug.
Chlorpromazine
How does the Conventional drug work?
- Schizophrenia- believed to be caused by a lack of dopamine.
- The medication binds to dopamine receptors in the brain and blocks the dopamine receptors but not stimulating them.
- This reduces the flow of dopamine in the brain.
What are side-effects of the Conventional drug?
- Tardive Dyskinesia Symptoms E.g involuntary movements of face muscles i.e Tongue protrusion
- Common side effects: Changes in blood pressure, rapid beating of the heart (tachycardia)
Give an example of an Atypical drug.
Risperidone
How does the Risperidone drug work?
- Work in similar way, however, only temporarily blocking dopamine receptor sites. They will then dissociate to allow for normal dopamine flow.
- Because it’s more temporary, side effects are less prevalent
- They also block serotonin receptor sites
What are side-effects of the Resperidone drug?
- Trouble staying awake
- Dry mouth
- Changes in your menstrual cycle
- Dizziness
What is depression?
Caused by a lack of serotonin, leaving the patient having low mood
What are Antidepressant drugs?
Used to treat depression
What are the types of Antidepressant drugs?
SSRI’s
Give an example of SSRI’s drug.
Prozal
How does the SSRI’s drug work?
- Work by binding to the reuptake transporters on the presynaptic neuron.
- This stops the re-uptake of serotonin, therefore less is absorbed
- By inhibiting the re-uptake of serotonin, increases the availability of serotonin in the synapse
What are side-effects of the SSRI’s drugs?
- Drowsiness
- Nausea
- Fatigue
- Worsening of symptoms
- Weight gain
What is anxiety?
Caused by an imbalance of the emotional centres within the brain, leading to an overproduction of adrenaline and often a ‘fight or flight’ response.
What are anti anxiety drugs?
Work to calm the body’s stress responses, treating symptoms of anxiety.
What are the types of anti anxiety drugs?
Benzodiazepines (BZ’s)
Beta-blockers (BB’s)
Give an example of a BZ drug.
Valium
How do BZ’s drugs work?
- Slows the activity of the CNS
- This is done by enhancing the activity of GABA (a neurotransmitter that relieves stress)
Give an example of a BB drug.
Propranolol
How do BB’s drugs work?
- Bind to receptors on the cells on the areas of the body that become aroused e.g., the heart
- BB’s will block the receptors on these cells, slowing their function.
- Therefore, the heart will beat slower and blood pressure will fall, making the patient feel less anxious.