Pharmacology (PSA) Flashcards
What are the drugs associated with pancreatitis?
FATSHEEP
Furosemide
Azathioprine/Asparaginase
Thiazides/Tetracyclines
Statins/Sulfonamides/Sodium Valproate
Hydrochlorothiazide
Estrogens
Ethanol
Protease Inhibitors
What diabetic medications can increase risk of gangrene?
SGLT-2 Inhibitors
What electrolyte imbalance can omeprazole cause?
Hypomagnesaemia
What is an appropriate set of blood tests to monitor for adverse effects of Methotrexate?
FBC, U&E and LFTs
What should be checked when taking amiodarone?
TFTs every six months
What drugs should be stopped before surgery?
Insulin
Lithium
Anticoagulants/antiplatelets
COCP/HRT
K-Sparing diuretics
Oral Hypoglycaemics
Perindoprin and other ACE inhibitors
Which patients should you avoid Metoclopramide prescription in?
Patients with Parkinson’s disease, due to the risk of exacerbating symptoms
Young women, due to the risk of dyskinesia, i.e. unwanted movements especially acute dystonia
What drug class are contraindicated in ishcaemic leg ulcers?
Beta blockers
Beta-blockers can cause peripheral vasoconstriction and so worsen ischaemia in peripheral vascular disease (PVD), as such this patient’s atenolol is now contraindicated.
What drugs may be harmful in heart failure?
Calcium channel blockers (e.g. verapamil, diltiazem)
Tricyclic antidepressants
Lithium
NSAIDs and COX-2 inhibitors
Corticosteroids
QT-prolonging medications
What can metformin cause?
Lactic Acidosis
What are the most nephrotoxic antibiotics?
Gentamicin, Vancomycin and Tetracyclines
First line for paediatric status epilepticus in the community?
Diazepam PR
Midazolam Buccal
First line drug for Urge incontinence
Oxybutynin Hydrochloride
2.5mg-3mg
PO
BD
When should you give prednisolone
AM
What drugs increase fracture risk?
Steroids (e.g. Prednisolone)
PPIs
GnRH agonists (Buserelin, Goserelin)
Which drugs increase the risk of falls?
Benzodiazepines
Antidepressants (particularly TCAs and SNRIs)
Monoamine oxidase inhibitors
Most antipsychotics
Opiates
Most antihypertensives (particularly diuretics and alpha-blockers)
Which antidiabetic drugs can cause weight gain?
Thiazolidinediones (e.g. Pioglitazone)
Sulfonylurea (e.g. Gliclazide)
What drugs increase risk of pancreatitis?
Ethanol
DDP4 Inhibitors
GLP-1 analogues
Mesalazine>Sulphasalazine
What drugs should you stop in AKI?
Diuretics
ACEi/ARBs
Metformin
NSAIDs
Who should low oxygen therapy be reserved for?
COPD
Advanced CF
Severe non-cystic fibrosis bronchiectasis
Severe Kyphoscoliosis or Ankylosing spondylitis
Lung scarring in TB
MSK disorders with respiratory weakness
An overdose of opioids, benzos or other drugs causing respiratory depression.
ECG in hyperkalaemia
Absent P waves, Prolonged QRS, Peaked or ‘tall tented’ T waves, Sine wave pattern
What is the preferred route of administration for Vancomycin in C. diff
Orally
IV vancomycin is not as effective as it cannot reach the bowel
What is the King’s College Hospital criteria used to determine and what are they?
Used to determine whether Liver Transplant is needed post paracetamol ingestion
Arterial pH >7.3 after 24 hours of treatment
Or ALL of - INR >6.5 creatinine AND grade 3/4 encephalopathy
What is the treatment for tricyclic antidepressant overdose and why?
Sodium Bicarbonate.
TCA overdoses cause sodium channel blocking in the myocardium which can result in arrythmias.
The first sign in QRS prolongation.
Sodium bicarbonate increases TCA protein binding, dislodging the TCAs from the sodium channel and increasing TCA elimination
What tests should be carried out before starting lithium therapy?
FBC, U&E, TFT, BMI +/- ECG before and every 6 months
What are symptoms of lithium toxicity?
Muscle weakness –> Dizziness –> Ataxia –> Coarse tremor –> Seizures –> Disorientation –> Coma –> Death
Which drugs cause hypoglycaemia?
Insulin, Sulphonylureas
What drugs cause hyperglycaemia?
Steroids, antipsychotics, thiazides, beta blockers, tacrolimus
What drugs can cause constipation?
Opioids
Iron
CCBs (Verapamil, amlodipine)
Ondansetron and Metoclopramide
Anticholinergics