Drugs Flashcards
Examples of typical anti-psychotics?
Chlorpromazine Thioridazine Fluphenazine Haloperidol Zuclopentixol
Examples of tricyclics?
Amitriptyline, imipramine, dosulepin, lofepramine
Examples of cholinesterase Inhibitors?
Donepezil, Rivastigmine, Galantamine
Examples of dual reuptake inhibitors?
Venlafaxine, Duloxetine
Examples of benzodiazepines?
Lorazepam, diazepam, chlordiazepoxide
Examples of MAOIs?
Moclobemide (reversible)
Phenelzine (irreversible)
When put fennel in food, it’s irreversible!
How does memantine work?
Inhibits NMDA receptors
Acamprosate use?
Cravings in alcohol withdrawal
What is Disulfiram?
Antabuse
Use of Tetrabenazine?
Treatment of chorea
Use of terbutaline?
Uterine hyperstimulation (or in foetal distress)
What does syntometrine contain?
Oxytocin and ergometrine
What can reverse opioid toxicity?
Naloxone/naltrexone
Name some iron chelation agents?
Deferiprone
Deferoxamine
Deferasirox
(de-FER)
Examples of cholinesterase inhibitors?
Donepezil
Rivastigmine
Galantamine
Side effects of cholinesterase inhibitors?
N+V Diarrhoea Muscle cramps Bradycardia Worsen COPD/ASTHMA
Dopamine agonists used in Parkinson’s + side effects?
Pramipexole
Ropinirole
Cabergoline
Nausea, oedema, impulsive behaviour/hallucinations
Which drugs are second line in MS if there are still new plaques while on DMDs?
Fingolimod
or
Monoclonal antibodies
Which disease modifying drugs can be used to reduce relapse frequency and severity in MS? (3)
Inferon beta e.g. Avonex, Rebif, Betaseron, Extavia or Copaxone or Tecfedira
Drug used in MND?
RILUZOLE
Examples of MOAB inhibitors used in Parkinson’s?
Selegiline, Rasagiline
What is Imatinib?
Tyrosine Kinase Inhibition
For cancers with Philadelphia chromosome (CML, ALL)
What is Rituximab?
Monoclonal antibody than binds CD20 on lymphoma/leukaemia cells and induces lysis and apoptosis
What is Ruxolitinib
JAK2 inhibitor
Side effects of MAOIs?
Postural hypotension Drowsiness Nausea Insomnia Constipation Peripheral Oedema
Side effects of tricyclics?
Cardiovascular= postural hypotension, tachycardia, arrythmias Cognitive= impairment in elderly anti-Cholinergic= blurred vision, dry mouth, constipation, urinary retention
+ Weight gain, sedation
Examples of SSRIs?
Fluoxetine, citalopram, escitalopram, sertraline
Side effects of SSRIs?
N+V, headache, transient anxiety, agitation, sweating, sexual dysfunction, insomnia, HYPONATRAEMIA in elderly
Examples of dual reuptake inhibitors?
Venlafaxine, Duloxetine
Name an atypical anti-depressant and its use?
Mirtazapine
Supplement SSRIs to block serotonin side effects e.g. nausea
can cause weight gain, sedation
Side effects of lithium?
GI upset, Tremor, HYPOTHYROIDISM, Weight gain, renal impairment, polydipsia, polyuria, sedation
Lithium toxicity signs include?
Vomiting, diarrhoea, ataxia, tremor, drowsiness, convulsions
Side effects of sodium valproate?
sedation, tremor, dizziness, GI upset, weight gain, TERATOGENIC
How to calculate number of units?
(% x volume)/10
How do typical anti-psychotics work?
Block D2 receptors
Side effects of typical anti-psychotics?
Acute dystonic reaction (muscle spasms)
Parkinsonism
Tardive dyskinesia (repetitive involuntary purposeless movements + inner restlessness)
Hyperprolactinaemia (due to lack of prolactin inhibition by dopamine)
How do atypical anti-psychotics work?
Transient block D2 receptors, and block 5HT2 receptors too
Examples of atypical anti-psychotics?
Olanzapine
Risperidone
Quetiapine
Clozapine
Side effects of atypical anti-psychotics?
MUSCARINIC BLOCKADE (blurred vision, dry eyes, dry mouth, constipation, urinary retention) Metabolic syndrome (high CV risk) Sedation Increased appetite Postural hypotension
IQ of borderline LD?
70-84
IQ of mild LD?
50-69
IQ of moderate LD?
35-49
IQ of severe LD?
20-34
What causes memory loss, panic attacks and partial seizures?
Limbic encephalitis
First line medication in ADHD?
Methylphenidate (block dopamine transport)
or
Dexamphetamine
Which 2 anti-depressives to avoid in pregnancy?
Paroxetine (heart defects)
Citalopram
Can benzodiazepines be used in pregnancy?
NO
Increase malformations + floppy baby syndrome
Can lithium be used during pregnancy?
Yes
Monitor serum levels closely (toxicity can mimic pre-eclampsia)
Can lithium be used during breastfeeding?
NO
concentrated to baby
Is sodium valproate safe in breastfeeding?
Yes
Is tetracycline safe in breastfeeding?
No
absorbed by breastmilk- can discolour infant teeth permanently
Is carbamazepine safe in pregnancy?
No
Neural tube + facial defects
Is lamotrigine safe in pregnancy?
No
Oral cleft + stevens-johnson syndrome
Treatment of myasthenia gravis? (4)
Pyridostigmine- acetylcholinerase inhibitor
IV immunoglobulin
Steroids- azathioprine
Thymectomy- for hyperplasia/thyoma
What should be used instead of meoclopramide for GI issues in Parkinson’s disease?
Domperidone
Management of frontotemporal dementia?
Trazadone/ anti-psychotics
Treatment of Guillain-Barre?
Immunoglobulin infusion
Plasma exchange
Cyclophosphamide
Symptoms of Creutzfeldt-Jakob Disease (CJD)?
Rapid dementia
Myoclonus
Ataxia
Symptoms of extradural haemorrhage?
LUCID INTERVAL then: Stupor Ipsilateral dilated pupil Hemiparesis Coning
Symptoms of subdural haemorrhage?
Headache Confusion Drowsiness Fluctuating symptoms Focal deficit Stupor Coning
Symptoms of an uncal herniation?
Pupillary dilatation (ipsilateral) Hemiparesis (contralateral)
Management of partial (focal) seizures? (3)
Carbamazepine
Lamotrigine
Topiramate
Management of generalised seizures? (5)
Sodium Valproate Ethosuximide (absense) Levetiracetam Topiramate Lamotrigine
2 medical steps for TOP?
- Mifepristone 200mg
24-48 hours later - Misoprostol
What kind of medication is mifepristone?
Anti-progesterone
What kind of medication is misoprostol?
Prostaglandin
When can vacuum aspiration take place?
6-12 weeks
When can dilatation and evacuation take place?
13-24 weeks
Which contraceptives CANNOT be started straight away after TOP?
Depo injection
Vaginal ring
How is Down’s Syndrome screened for and when?
Nuchal thickness/translucency (11-13 wks)
Bloods- HCG + AFP (15-20 wks)
Amniocentesis (15 wks) or CVS (12 wks)
(also NIPT)
What to do if an oral steroid has been used >2 weeks before labour?
Give IV hydrocortisone 100mg qid during labour
What is used as VTE prophylaxis if high risk in pregnancy?
Dalteparin
Which anti-hypertensives are used in pre-eclampsia and how do they work? (3)
Labetalol- alpha and beta antagonist (NOT IN ASTHMA)
Nifedipine- Ca channel antagonist
Methyl-dopa
Severe CONTINUOUS abdo pain + WOODY-HARD UTERUS?
Placental abruption
PAINLESS bleeding + soft abdo?
Placenta praevia
DOUGHY abdomen?
Placenta accreta
Mneumonic for CTG interpretation?
Dr C Bravado
DR- define risk (high or low from Hx)
C- contractions (frequency + duration)
Bra- Baseline rate (fetal HR normal-110-160)
Variability (at least 10-15bpm- reassuring)
Accelerations (15bpm increase for 15 secs- reassuring)
Decelerations (early- normal, variable- cord compression, late- hypoxia)
Overall (reassuring, suspicious or abnormal)
Which hormones are in the implant + injection + IUS?
Progesterone
Which hormones are in the patch and ring?
Oestrogen + Progesterone
Describe the use of Levonelle (LNG- levonorgestrel) and mode of action
Up to 72 hours
High dose progestogen
Works before LH surge
Describe the use of ellaOne (UPA- ulipristal acetate) and mode of action
Up to 120 hours
Anti-progestogen
Works until after start of LH surge
NOT IN SEVERE ASTHMA
When do you double dose of Levonelle (LNG- levonorgestrel)?
If >70kg or >26 BMI
When can’t you use UPA- ulipristal acetate?
If other hormonal contraceptive was used in last 7 days
Features of early jaundice?
<24 hours
Usually due to haemolysis (ABO incompatibility, Rhesus disease, Sepsis)
(also polycythaemia, infection)
Causes of persistent unconjugated jaundice?
Breast milk jaundice
Haemolysis
Infection
Hypothyroidism
Causes of persistent conjugated jaundice?
ALWAYS ABNORMAL Hepatitis Biliry atresia CF Down's Syndrome etc.
Examples of aromatase inhibitors?
Letrozole
Anastrozole
Side effects of aromatase inhibitors?
Joint stiffness/pain
Side effects of Trastuzumab?
Allergic reactions
Reversible cardiac failure
Side effects/complications of tamoxifen?
Menopausal symptoms, alopecia, anaemia
Increased risk of endometrial cancer, endometrial hyperplasia + polyps