Long Case Medications Flashcards
What do you use to treat CHF exacerbation?
Frusemide 40mg IV **patients already on frusemide may require higher doses
A “normal ef” is ____
LVEF 55-70%
What would you prescribe for an acute gout flare?
- Naproxen
- Load 750mg PO once
- 500mg PO 8hrs later
- 250mg TDS
- Prednisone 20-40mg PO OD
- Colchicine
How to start someone on Allopurinol?
50-100mg OD, increasing at 3-4 week intervals until reach target serum urate of <0.36mmol/L
Acute treatment of Meningitis?
- CALL ID
- Dexamethasone 10mg IV Q6h for 4/7: stops inflammation in the subarachnoid space cause by antibiotics
- Ceftriaxone 2g IV Q12h
- Vancomycin
- Benzypenicillin
What can be used to treat Myasthenia Gravis?
- AChEi: neostigmine
- Reduce breakdown of ACh which leaves more in the NMJ, counteracting the effect of the autoantibody
- Immunosuppresive drugs; methotrexate, Prednisone
- Decrease amount of autoantibodies made from B cells
- Surgical removal of thymus
What drugs can cause Parkinsonism?
- Haloperidol (antipsychotic)
- Metoclopramide or prochlorperazine (Dopamine antagonists (anti-emetic)
What drugs do you give for parkinsons disease and why?
- Leva dopa (precursor of dopamine, can cross BBB unlike dopamine and improve sx. Is also converted to dopamine peripherally)
- Carbidopa (inhibits the enzyme that breaks down LD into dopamine in PNS, as dopamine can become epinephrine and cause arrhythmias etc)
Known as ‘sinemet’
- Dopamine Agonists: Ropinerole or pramipexole (trick brain into thinking more dopamine is there)
- Anticholinergics: Benzhexol or orphenadrine (reduce the ACh, therefore normalising the relative amount of ACh to dopamine, helps with tremor)
- COMT inhibitors: tolcapone (given with LD to stop it’s breakdown, allowing it to enter the brain)
- MAO-B inhibitors
Side effects of Sinemet (LD + carbidopa)?
- Dyskinesia
- On-off phenomenon
- Painful dystonia (uncontrollable contractions)
- Visual hallucinations
- Psychosis
What are the symptoms of ‘Anticholinergic syndrome’, a side effect profile of too many anti-cholinergic drugs
- Dizziness
- Confusion/delerium
- Dry mouth
- Urinary retention
- Seizures
- miosis
Ex: Atropine, digoxin, tiotropium bromide, ipratropium bromide, orphenadrine, benzhexol, amitriptyline, frusemide
An example, when used and side-effects of Loop-diuretics
- Frusemide
Used for
- HEart failure, Hypertension and Edema (HE, HE)
SE:
- Hyponatremia, Hypokalamia, Hypomagnesemia, oedema (HYPO)
Type of potassium-sparing diuretics, SE, CI and when used
- Aldosterone antagonists
- Spironolactone
- Direct Na+ channel inhibitors
SE: Hyperkalamia, gynaecomastia
CI: NSAIDs, ACEi, Lithium
Used for: hyperaldosterism, HTN, Some HFs
Side effects of dopamine agonists?
Eg; pramiprexole or ropinerole
- Hallucinations, disinhibition
When seeing a patient with psychosis who has a background of Parkinsons, what do you need to consider before treating?
Whether this is a complication of the disease (likely concurrent depression present) or a medication side effect.
Should consider changing the dose of the dopamine agonist if an issue
Treatment of Mild vs mod/severe Psoriasis
Mild
- Daivobet cream
- Salicylic acid
- emolliants
- Tar cream
Mod/Severe: Immunosup +/- phototherapy
- Methotrexate or cyclophosphamide
- PUVA phototherapy