Drugs for Angina Pectoris Flashcards
[Nitrates]
ultrashort-acting, used in CYANIDE poisoning
amyl nitrite
cause oxidation of Fe in Hgb to Fe3 in methemoglobin
What is the drug of choice in treating methemoglobinemia?
low dose methylene blue
Cyanide affects what part of the ETC?
Complex IV (cytochrome oxidase)
What is the antidote for cyanide poisoning?
Lilly Cyanide kiit
- Inhaled amyl nitrite
- IV Na nitrite
- IV Na thiosulfate
[Nitrates]
short acting, used in ACS
more of a venodilator
Nitroglycerin
ISDN/ISMN is not given with this drug class due to dangerous hypotension as its combined effect
PDE inhibitors
[Nitrates]
that decrease platelet aggregation, first pass effect approximately 90%
Nitroglycerin - ISMN
Between ISMN and ISDN
which does not undergo FPE?
ISMN
Nitrates inhibit what enzyme?
guanylyl cyclase
What blood vessel is affected when patients taking nitrates experience throbbing headaches?
meningeal blood vessel vasodilation
CCB that cause gingival hyperplasia?
verapamil
CCB used to treat vasospasm and Reynaud Phenomenon?
Diltiazem
What is the DOC for prinzmetal angina?
CC- Diltiazem
what calcium channels are blocked by CCBs?
L-type calcium channels
Drugs that can cause gingival hyperplasia?
Nifedipine
Cyclosporine
Phenytoin
Verapamil
[beta blockers]
reduces renin release; used in glaucoma
propanolol
[metabolism modifier]
inhibit beta oxidation by inhibiting 3 ketoacyl-CoA thoilase which enhances glucose oxidation
trimetazidine
[metabolism modifier]
cause restless leg syndrome
trimetazidine
also a cytoprotective agen
[metabolism modifier]
interacts with MAOl; prevent decrease in ATP in ischemic/hypoxic states
trimetazidine
[metabolism modifier]
reduces late, prolonged Na current in myocardial cells
Ranolazine
[metabolism modifier]
used for prophylaxis of angina; concentration increased by CYP 3A4
Ranolazone
[metabolism modifier]
funnt Na current SA node inhibitor
ivabradine
[metabolism modifier]
very effective in decreasing heart rate without decreasing bp
ivabradine
[metabolism modifier]
prophylaxis of angina, decrease hyperpolarization-induced inward pacemaker current
ivabradine