Cardiopharm Flashcards
I’d Buy Liddy’s Mexican Tacos
Lidocaine, Mexiletine: class IB
The Queen Proclaims Diso’s Pyramids
Quinidine, Procainamide, Disopyramide: Class IA anti-arrhythmics
Can I have Fries Please
Flecainide, Propafenone: class IC
- IB is best in
- IC is Contraindicated in
- IB is Best in MI
- IC is Contraindicated in structural and ischemic heart disease
AIDS
Class III antiarrhythmics, potassium channel blockers
amiodarone, ibutlidie, dofetilide, sotalol
Decreases slope of phase 0
Class IA, IB, IC
Class A > Class B < Class C
increase in: AP duration, refractory period (ERP), QT interval. Has potassium channel blocking effect
Class IA- acts on IA
preferentially effects ischemic tissues or depolarized purkinje/ventricular tissue.
IB: I’d Buy Liddy’s Mexican Tacos (lidocaine, MexileTINE)
decreases AP
phenytoin can act as a class IB
- especially re-entrant and ectopic SVT and VT
- acute ventricular arrhythmias (especially post MI)
- digitalis induced arryhthmias
- SVTs, afib
- Class IA
- Class IB
- Class IB
- Class IC
Decreases SA and AV action potentials by reducing cAMP mediated calcium influx during phase 4
what are the drugs in this category?
which drug has a similar suffix but not part of this class?
Class II beta blockers
- metaprolol
- atenolol
- propanolol
- carvedilol
- esmolol
- timolol
class III potassium channel blocker- sotalol
decreases slope of phase
- headaches, tinnitus
- reversible SLE like symptoms
- cinchonism- quinidine
- procainamide
- tosades de pointes
- pulmonary fibrosis
- hepatotoxicity
- hypothyroidism
- blue gray skin deposits
- photodermatitis
- bradycardia, heart block, HF
- stotalol (excessive beta blockade) & ibutlide
2-7: amiodarone
check PFTs, LFTs, and TFTs when using
amiodarone
lipophilic and has class I, II, III, and IV effects
amiodarone
used in afib, aflutter, Vtach
class III- potassium channel blockers
Vtach- amiodarone and sotalol
effects are blunted by theophylline and caffeine
adenosine
drug of choice in diagnosing/terminating forms of SVT
adenosine
increases potassium efflux and hyperpolarizes cell, and decreases calcium influx
adenosine
- beta blockers A through M are
- beta blockers N through Z
- the only exceptison
- appropriate beta blockers to manage HTN in asthmatics
- appropriate beta blockers to manage HTN with mgiraines
- appropriate beta blockers to manage HTN emergencies in the context of a pheochromocytoma
- beta blockers A through M are: beta 1 selective
- beta blockers N through Z: beta nonselective
- carvedilol and labetolol: these block BOTH alpha 1 and beta receptors
- beta-1 selective antagonists (beginning with A through M)
- timolol
- labetolol
beta blockers with intrinsic sympathomimetic activity (ISA) and so contraindicated in stable angina
ISAs: pindolol and acebutolol
- causes orthrostatic hypotension with the initial dose
- which class of drugs are these and what are they prescribed for?
- alpha 1 antagonists- end with “sin”
- hypertension and BPH