PBS top 100 drugs Flashcards
Adrenaline (epinephrine) Epipen
CLASS:
Sympathomimetic
INDICATIONS:
Anaphylactic reaction
DOSE:
150mcg (<20kg) - 300mcg (>20kg) SC stat
MONITORING:
Response, airways, DRABC
COUNSELLING:
Tell everyone you know what you’re allergic to and educate. Keep 2 Epipens at all times.
Call 000
Note expiry.
Remove cap - ‘Blue to the sky, orange to the thigh’.
Hold in for 10 secs and then massage for 10 secs. - can pierce clothes - avoid seam
Available S3. Store 15-25˚C. Check solution is clear before administering. Repeat after 5 min if no response.
Alendronate
CLASS:
Bisphosphate
INDICATIONS:
Paget’s disease
Osteoporosis prevention/tx
DOSE:
Osteo - 10mg daily OR 70mg weekly
Pagets - 40mg daily for 6 months
(comes in 10mg, 40mg, 70mg, combo packs)
MONITORING:
BMD
renal function
dental health
vitamin D and Calcium levels
COUNSELLING:
Swallow whole with a full glass of water first thing in AM 30 mins before breakfast.
Remain upright for at least 30 mins
Ensure weekly tablet taken on same day every week
L4a - no antacids, iron, calc w/i 2 hours of dose
Inform dr if new/worsening heartburn or musculoskel pain
Can -> NVD, headaches
Ensure regular dental checkups
Allopurinol
CLASS:
Xanthine oxidase inhibitor (reduces uric acid production/urate levels)
INDICATIONS:
Gout
Chronic symptomatic hyperuricemia
Prev tumour lysis syndrome
DOSE:
100mg(starting) - 600mg daily (MAX:900mg)
(Comes in 100mg, 300mg)
MONITORING:
Renal function
Liver function
Urate levels
For gout flares
COUNSELLING:
Take with food to reduce GI upset
Drink plenty of water to prevent urate crystals in kidneys
- L5* many interactions - check before taking any new meds/herbals
- L12* Can make dizzy initially - see how you feel before driving
Can -> NVD, taste disturbance
Inform dr/stop mmediately if rash develops
Should not be commenced during flare (unless on appropirate flare cover), can increase attacks initially (does not mean tx failure), continue taking even through flares
Alprazolam
CLASS:
Benzodiazepine (short acting 6-12 hours)
INDICATIONS:
Anxiety
Panic disorder
DOSE:
- 5-4mg daily in 3-4 doses (MAX 10mg)
* (Comes in 0.25, 0.5, 1, 2mg)*
MONITORING:
Sedation, respiratory rate, falls risk
Tolerance, dependence, diversion, duration of tx
Renal and liver func (reduce dose)
Blood counts
COUNSELLING:
L1 - sedation, see how you feel before driving
Alcohol/other sedatives will increase this effect
Ideally only for use ST and PRN
L9 - If have been taking long term, do not stop suddenly, dose titration required.
Can -> drowsiness, confusion, hypersalivation, ataxia, sexual dysfunction
Withdrawal effects = anxiety, dysphoria, insomnia, aggitation
Amiodarone
CLASS:
Antiarrhythmic
INDICATIONS:
Tx/proph of refractory tachyarrhythmias 2dary to AF, SVT(supraventicular tachy)
DOSE:
100-400mg daily (maint)
OR
(loading) 200mg tds, then 200mg bd
* (Comes in 100mg, 200mg)*
MONITORING:
Eye examination
Thyroid function
ECGs
chest xray
liver function
FBE
electrolyte balance
drug conc (TDM)
COUNSELLING:
- L5* - many interactions check before new drugs/herbals
- L8* - photosensitivity
- L18* - no grapefruit
Can -> exacerbation of arrhythmia, pulmonary toxicity, thyroid dysfunction, coneal microdeposits (regular testing is important)
Can also cause NV, taste disturbance, blue-grey skin pigmentation and vivid dreams
Has a long half life - so symptoms can take months/years to occur after starting and stop after ceasing
Amitripyline
CLASS:
Tricyclic Antidepressant
INDICATIONS:
Major depression
Nocturnal enuresis, urinary incontinence
Neuropathic pain
Migraine proph
DOSE:
25-150mg (MAX 300mg) -depression
Lower doses (ie10mg) for migrain and incont
(Comes in 10mg, 25mg, 50mg)
MONITORING:
BP, ECG (qt prolong)
suicidal thoughts, worsening of symptoms
clinical effect
liver func (dose reduction)
serotonin toxicity
COUNSELLING: L1, L5, L9, L13, L16
L1 - sedation. caution driving. take at night
Takes time to start working - start seeing difference in 1-2 weeks, full effect up to 8 weeks
Can make you feel worse before better - tell someone you’re on it to help monitor your mood, see dr if issue
Can -> drowsy, blurred vision, dry mouth, constipation, urinary retention (antislud) - these should go away
Can -> weight gain
L9 - do not stop suddenly. see dr for weaning plan
Amlodipine
CLASS:
Dihydropyridine Calcium channel blocker
INDICATIONS:
Hypertension
Angina
DOSE:
- 5-10mg once daily
* (Comes in 5mg, 10mg, combos)*
MONITORING:
BP
liver function
peripheral oedema (doesn’t respond to diruetics)
COUNSELLING: L9, L12*, L18
Take every day, it’s important to take even if you can’t feel it working.
Can take 2 weeks to reduce BP effectively
L9 - do not stop suddenly
L18 - Avoid grapefruit
Can -> dizziness, headache, flushing (these should go away)
Tell dr if ankles swollen
Does come in combo if needed
Amoxicillin
CLASS:
Penicillin Antibiotic
INDICATIONS:
CAP
Ear infections
Sinusitis
UTI
H. pylori
DOSE:
250-1000mg TDS
or
1g BD
Paed: 7.5-25mg/kg (MAX 500mg) TDS
(Comes in 250mg, 500mg, 1g, 25mg/ml, 50mg/ml, 100mg/ml)
MONITORING:
Response to therapy
Sensitiviy/resistance
Signs of allergy
Hepatic/renal func, FBC tx>10days
COUNSELLING:
Take with/without food (with food if GI upset)
Space doses evenly
Complete course
Can -> NVD, widespread rash
Look out for signs of allergy (swelling, diff breathing) - see dr
Suspension: fridge, shake, d28
Amoxycillin with Clavulanic acid
CLASS:
Penicillin antibiotic + beta-lactamase inhibitor
INDICATIONS:
HAP
Epididymo-orchitis , PID, UTI
Bite injuries
Ear infection (if amox hasnt worked)
Sinusitis
DOSE:
500mg/125mg-875mg/125mg BD (can up lower dose to TDS)
Paed: 7.5-20mg/kg (max500) TDS
or
22.5mg/kg (max 875) BD
(Comes in 500/125mg, 875/125mg, 125/31.25mg/5mL, 400/57mg/5mL)
MONITORING:
For allergy
hepatic/renal func, FBC tx>10days
Clin effect, sensitivity, resistance
COUNSELLING:
Space doses evenly
Best absorbed with food
Can -> NVD, widespread rash
If swelling/diff breathing cease and see dr
Suspension: fridge, shake, d28
Anastrozole
CLASS:
Aromatase inhibitor - hormonal antineoplastic (reduce tissue oestrogen conc)
INDICATIONS:
Hormone receptor-positive breast ca in post menopausal
DOSE:
1mg once dialy
MONITORING:
BMD, Vit D, Calcium, VitD+Cal supplements
Regular screening/cancer status
COUNSELLING: L12, 21, LA
Can -> hot flushes, vag dryness, weakness, rash, headache, naus, diarr, joint/muscle pain, periph oedema, carpal tunnel
Ensure adequate vit D and calc intake (may need supple)
Apixaban
CLASS:
Factor Xa inhibitor anticoagulant
INDICATIONS:
Prev VTE post knee/hip replacement
Tx acute VTE + Proph of subsequent VTE
Non-valvular AF (to prev stroke/embolism)
DOSE:
Post knee/hip replace
2.5mg BD for 10-14 (knee) or 32-38(hip) days
VTE treat
10mg bd for 7 days, then 5mg bd
Subs VTE proph
2.5mg BD
AF
5mg BD
MONITORING:
Signs of bleeding
Leg pain or swelling/presence of emboli
Renal function
Other meds
Renal func
COUNSELLING:
Take at same time everyday - use calender?
With or without food
- L10b* - do not take aspirin or other NSAIDS
- L18 -* avoid grapefruit
Look out for signs of bleeding (nosebleeds, unexpalined bruises, coffee coloured vomit, dark stools, discoloured urine) or bleeding that wont stop.
If you notice leg pain, swelling, feel weak, dizzy, SOB - see dr immediately
This medication doesn’t have a reversal to stop bleeding like warfarin - take care not to sustain serious injuries and go to ED if you do. Consider med alert bracelet or card in wallet.
Inform all health professionals you are taking this (dentists, pods, drs, pharmacists) and check with them before taking any new meds/herbals as there are many interactions
Aspirin
CLASS:
NSAID analgesic, antiplatelet
INDICATIONS:
Acute coronary syndrome
Hx of symptomatic atherosclerosis
Pain, infl, fever
DOSE:
antiplatelet - 100mg daily
analgesic - 300-900mg q4-6h (MAX 4g daily)
MONITORING:
Signs of bleeding or PUD
renal/liver function
Salicylate allergy or NSAID bronchospasm (esp in asthma)
COUNSELLING:
L9 - Take every day, do not stop suddenly
Do not double up with other NSAIDs (if using high dose)
Look out for signs of bleeding (coffee coloured vom, nosebleed, unexpl bruising, discoloured urine, dark stools)
Experience abdo pain, indigestion inform dr
Inform health professionals youre on it (may need to stop before surgery)
Should not be given to <16yo (Reye’s syndrome)
Aspirin plus Dipyrimadole
CLASS:
Dual antiplatelet
INDICATIONS:
Secondary prev of ischaemic stroke and TIA
DOSE:
CR 25mg aspirin/200mg dipyri BD
(Comes in 25/200mg CR, 200mg CR-dipyri only)
MONITORING:
Signs of bleeding or PUD
renal/liver function
Salicylate allergy or NSAID bronchospasm (esp in asthma)
COUNSELLING:
Take every day, swallow whole
L16 - can cause dizziness
Look out for signs of bleeding (coffee coloured vom, nosebleed, unexpl bruising, discoloured urine, dark stools)
Experience abdo pain, indigestion inform dr
Inform health professionals youre on it (may need to stop before surgery)
Atenolol
CLASS:
Selective beta 1 Beta-blocker
INDICATIONS:
HTN
Angina
Tachyarrhythmias
MI
Migraine proph
DOSE:
25mg-100mg daily
(Comes in 50mg)
MONITORING:
BP
Can worsen heart failure at start
Renal func
COPD, asthma (exacerbate)
Diabetes (mask hypogly)
Raynaud’s phenomenon (exacerb)
(But less likely in atenolol)
COUNSELLING: L9, L12*
L12 - May cause drowsy/dizzy when first starting - caution driving and standing. May feel lethargic for first few days
Take everyday - not a med you can feel working
L9 - Do not stop suddenly
Can -> cold extremities
Atorvastatin
CLASS:
HMG-CoA reductase inhibitor (statin)
INDICATIONS:
Hypercholesteraemia
HTN patients with addit heart disease risk factors
DOSE:
10-80mg once daily
(Comes in 10, 20, 40, 80mg, combos)
MONITORING:
Lipid levels (HDL, LDL, triglycerides)
Liver function, aminotransferase levels
Renal func
Myopathy, creatine kinase conc
COUNSELLING: L18, L21
Take at the same time each day (long acting, doesn’t matter what time)
Keep an eye on lipid levels. Combine with healthy lifestyle to reduce risk of heart disease.
L18 - Avoid grapefruit
If you experience unexplained muscle pain/weakness dark urine - see dr
Can -> mild GI upset, headache, sleep disturbance
Azathioprine
CLASS:
Immunosuppressant
INDICATIONS:
Prev organ trans rejection
Immune/inlfam diseases (rheum arth, IBS, lupus)
DOSE:
Org trans - 2-5mg/kg day 1, the 1-3mg/kg daily in 1-2 doses
Inflam dis - 1-3mg/kg daily in 1-2 doses
(Comes as 25mg, 50mg)
MONITORING:
FBC (leucopenia, anaemia)
liver/renal func
Signs of infection
COUNSELLING: L8, L21
Swallow whole. Take with food (to reduce stomach upset)
- L21 -* handle with care if administering (cytotoxic)
- L8 -* photosensitivity
Tell dr if signs of bleeding or infection
Can -> NVD, alopecia
Azithromycin
CLASS:
Macrolide antibiotic
INDICATIONS:
Chlamydial infection
Streptococcol pharyngitis/tonsilitis
CAP
Prev/tx of MAC (mycobacterium avium complex) inf
typhoid
Traveller’s diarrhoea
DOSE:
1g stat (chlam)
or
250mg-500mg daily
(Comes as 500mg)
MONITORING:
For allergic reaction
Clearing of infection, sensitivity, resistance
Hepatic func
ECG (torsades de pointes, QT prolong)
COUNSELLING:
Take with or without food.
Complete course
Can -> NVD
Inform dr if baby gets irritable or vomiting if feeding while taking azith (infantile hypertrophic pyloric stenosis
Betamethasone cream
CLASS:
Corticosteroid
Moderate (valerate) and Potent (dipropionate)
INDICATIONS:
Inflammatory skin conditions (eg eczema and psoriasis)
DOSE:
Diproprionate 0.05%
(Diprosone, Eleuphrat)
Valerate 0.02%, 0.05%, 0.1%
(Antroquoril, Betnovate)
Apply daily-BD (note: 0.02% up to QID)
MONITORING:
Clinical effect, skin atrophy
For infection
Duration of tx
Compliance to non-pharma advice
COUNSELLING:
Apply after bathing. Allow sufficient time to absorb before applying moisturiser (doesn’t matter which to apply first)
Not for long term use - only for flares
May make skin sensitive when first using
Do not apply to broken or infected skin
Ensure following non-pharma advice (ie: no soap, irritants/triggers, plenty of moisturiser)
Bisoprolol
CLASS:
Beta blocker (cardioselective beta-1)
INDICATIONS:
HTN
Angina
Tachyarrhythmias
MI
Heart failure
Migraine proph
DOSE:
- 25-10mg once daily
* (Comes in 1.25mg, 5mg, 10mg)*
MONITORING:
BP, heart rate, ECG
Can worsen heart failure at start - ensure stable on other therapies (ie acei) before starting bisop for heart failure
Renal func
COPD, asthma (exacerbate)
Diabetes (mask hypogly)
Raynaud’s phenomenon (exacerb)
(But less likely in bisoprolol)
COUNSELLING: L9, L12*
L12 - May cause drowsy/dizzy when first starting - caution driving and standing. May feel lethargic for first few days
Take everyday - not a med you can feel working
L9 - Do not stop suddenly
Can -> cold extremities
Budesonide plus Eformoterol
CLASS:
(Symbicort)
Inhaled corticosteroid plus LABA
INDICATIONS:
Asthma preventer and reliever
COPD
DOSE:
100mcg/6mcg - 400mcg/12mcg BD
(400/12 inhaler only suitable for COPD)
MONITORING:
Lung function - FEV1, peak flow
Inhaler technique
Compliance
Exacerbations/need for relievers
Asthma/COPD management plan
COUNSELLING: L14
This medication must be used everyday to work properly
Ensure correct inhaler technique (turbuhaler or rapihaler)
L14 - Rinse mouth out with water after each use
Can be used as a reliever
Can -> sore throat/voice horsness, oral thrush, tremours, palps, headache
Buprenorphine
CLASS:
Partial opioid agonist
INDICATIONS:
Chronic Pain (patches)
Acute pain (sublingual)
Opioid dependence (sublingual film)
DOSE:
Acute pain SL - 200-400mcg q6-8h prn
Chronic pain patch - 5mcg-40mcg/hour weekly
Opioid depend - 2-32mg daily
Comes in SL 200mcg, patch 5mcg/h, 10mcg/h, 20mcg/h, 30mcg/h, 40mcg/h
Subutex 0.4mg, 2mg, 8mg
Suboxone (w/ naloxine) 2/0.5mg, 8/2mg
MONITORING:
Effect on pain relief
Sedation, respiratory depression, falls risk
Renal, hepatic function
Skin reaction
Constipation
Dependence, diversion, tolerance
COUNSELLING:
Patch is applied once weekly - same day each week.
Can write date on patch or calender
Apply to unbroken, clean, dry, hairless skin on upper torso (if necessary, do not SHAVE hair, trim only).
Remove old patch before applyingnew one. Rotate patch site to minimise skin irration
Avoid patch direct exposure to heaters, electric blankets, etc as can increase dose released.
Know how to dispose safely.
L1 - sedation. can be increased by alcohol
Can cause constipation so stay hydrated and ensure fibre intake.
Can -> skin irritation (patch), NV,
Bupropion
CLASS:
Selective dopamine and noradrenaline re-uptake inhibitor
INDICATIONS:
Nicotine dependence
DOSE:
150mg daily (starting) - BD
(Comes in 150mg SR - Zyban SR)
MONITORING:
Neuropsychiatric symptoms, changes in mood/behaviour, thoughts of suicide
Response to therapy/progress
Renal and hepatic function
BP (if comb with NRT)
Contraind if hx of siexures
COUNSELLING: L5, L12*, L16*, LA
Plan a quite date and start buprop 7 days before that (takes time for it to be effective)
- LA -* Swallow whole
- L12/16 -* Can make you drowsy and dizzy be carefull getting up and see how you feel before driving while your body gets used to medication
Can -> insomnia, nightmares, diff concentrating, tremor, headache, dry mouth, constipation
(note some of these can be related to stopping smoking
If you notice rash, swelling, diff breath - stop and see dr imm
Limit alcohol intake - can increase risk of unpleasant effect
Can use NRT alongside - improves quit rate
*Can -> false positives in urine tests (ie amphetamine)
Cabergoline
CLASS:
Ergot-derived dopamine agonist
INDICATIONS:
Parkinson’s disease
Hyperprolacinemia, prevent onset of lactation
DOSE:
0.5mg-3mg once daily
or
1mg stat (prev of lact)
MONITORING:
Fibrotic disorders (bc ergot deriv)
hepatic function
Cardio evaluations
Behavioural changes - impulse disorder
Movement improvement
COUNSELLING: L12*, L16
Take with food, starting at night
L12/16 - Can cause dizzy/drowsy, careful standing and see how you fee before driving
Can -> leg cramps, NV, constipation, headache, periph oedema, sudden sleep onset
Inform dr if behavioural changes, can also effect impulse control
Calcipotriol
CLASS:
Topical vitamin D analogue
INDICATIONS:
Plaque psoriasis
DOSE:
Apply BD (can use less after init period) until improved
Comes in 0.005% cream (Daivonex), plus combo w/betameth0.05%(Daivobet)
MONITORING:
Hypercalcaemia (rare at rec doses) avoid use psoriasis extensive (too much exposure)
Skin improvement, skin irritation
COUNSELLING:
Apply to affected area(s) - not for face or extensive psoriasis (no more than 100g/week)
Wash hands after application to avoid transfer to other areas.
Do not use occlusive dressings.
Do not mix with other products (can destroy calcipotriol)
May need to use for 4-6 weeks for max improvement. Stop once improved recommence when next flare
L8 - photosensitivity
Can -> mild irritated skin after application