Pharmacology Flashcards
What is the mechanism of action of cocaine?
Blocks uptake of dopamine, noradrenaline and serotonin
What is the first line management of cocaine induced MI?
Benzodiazepines + GTN
What is the mechanism of action of sildenafil?
Phosphodiesterase-5 inhibitors (enzyme that regulates blood flow in the penis and lungs)
What medications can cause hyperkalaemia if given with potassium-sparing diuretics?
ACE-I
What type of medication is amiloride?
Potassium-sparing diuretics
What immune changes can clozapine cause?
Neutropenia due to agranulocytosis
What immune cell changes can prednisolone cause?
Neutrophilia (promotes neutrophil maturation), reduced eosinophils
Give an example of a natural and a pharmacological mineralocorticoid
Aldosterone
fludrocortisone
Give an example of a natural and pharmacological glucocorticoid
Cortisol
Hydrocortisone, prednisolone
What are the features of a tricyclic overdose?
Convulsions, altered mental state, widened QRS, dilated pupils, dry, hot skin
What can be given in a TCA overdose?
Sodium bicarbonate
What can be given in a benzodiazepine overdose?
Flumazenil
What are the features of an benzodiazepine overdose?
hypotension, bradycardia, respiratory depression and coma
What medication can be used to reverse the effects of DOACs?
Andexanet alfa (modified factor Xa protein)
Which antibiotics lower the seizure threshold?
Quinolones - cipro and levofloxacin
What are the side effects of rifampicin?
Hepatitis, orange secretions, flu-like symptoms