HTN, CHF, Angina, and Lipid Lowering Flashcards
Fiber
Decrease LDL via adsorbing cholesterol/bile acids and GI motility changes
Loraza
Polyunsaturated Fatty Acid
Increase clearance of TGs
Mechanism of statins
Inhibit HMG CoA reductase, decreases cholesterol synthesis in liver, increases hepatic LDL receptors, increased clearance of LDL/VLDL
Atorvastatin
Potent statin
Long half life (night time admin not necessary)
Metab by CYP3A4
Lipophilic, crosses BBB
Prevastatin
Night admin
Sulfation metabolism (not p450 dependent)
Hydrophilic, hepatoselective
Not used in renal impairment
Ezetimibe
Cholesterol absorption blocker
Reduction absorbed leads to upreg of receptors in liver
Not p450 metabolized
Well tolerated
Cholestyramine
Bile acid sequestrant/resin
Binds bile acids, promotes excretion, increase conversion of cholesterol to bile acids, upreg of LDL receptors
Can also lead to upreg of HMG CoA reductase (use w/ statin)
Binds other drugs
Niacin (B3)
Inc HDL
AE: flushing, hepatotoxicity, GI
Gemfibrozil
Dec TG Inc LPL synth which inc TG clearance Renal/liver contraindicated Myopathy w/ statins Potentiates warfarin and OTC
Evolucumab
PCSK9 inhibitor Binds to/inhibits LDL receptor Injection, expensive Decrease in major CV events AE: nasopharyngitis, URI
Nitroglycerin
Decreases contractile state of BV
Decreases preload
Reduces coronary steal
Isosorbide dinitrate
Organic nitrate
Chewable, half life 2-3 hr
Nifedipine
Ca channel blocker - dihydropyridine
Strong coronary and peripheral vasodilation
Reflex increase in HR and contractility
Verapamil
2+ coronary/peripheral vasodilation
Dec HR, contractility, and rate of recovery of Ca channels
Nimodipine
Ca channel blocker
High affinity for cerebral vessels
Diltiazem
Ca channel blocker
Inhibits central sympathetic activity
Ca channel blockers: use, contraindications, and AE
Use: best option for variant angina
AE: cardiac depression, cardiac arrest, bradycardia, constipation
Contra: heart failure
Propanolol
Beta adrenergic blocker
Decrease HR and contractility
AE: ED, depression, insomnia
Contra: respiratory problems
Ranexa
Tx for chronic angina
AE: prolonged QT
Only used in patients who have not responded to nitrates, CCB, or beta blockers
Fluticasone
ICS
Prevent asthma attacks by suppressing inflamm
AE: candidiasis, HPA suppression
Used in COPD if FEV < 50%
Methylprednisolone
Systemic glucocorticoids
Short term, for exacerbations (3-10 days)
Albuterol
SABA
Acts in 3-5 min, duration 3-6 h
AE: tremor, tachycardia, hypokalemia
Salmeterol
LABA
> 12 hr duration
Not prescribed w/o ICS
Ipratropium bromide
SAMA
Blocks ACh effects from vagus onto M3 receptors
Effective in COPD (less in asthma)
AE: dry mouth, caution in BPH
Tiotropium
LAMA
Blocks ACh from vagus onto M3 receptors
More effective in COPD
AE: dry mouth, beware in BPH
Theophylline
Phosphodiesterase inhibitor
Taken orally
COPD: increases diaphragm contractility
AE: narrow TI, CV, CNS, GI effects
Montelukast
Leukotriene receptor antagonist
Taken orally
Add on tx, effective in aspirin sensitive asthma (no COPD)
AE: hepatic dysfxn, neuropsychiatric
Omalizumab
Anti-IgE monoclonal antibody
Binds and neutralizes at Fc position
AE: expensive, may inc malignancies, wide variation in response
Substance use criteria 1-4: impaired control
- Larger amounts, longer periods
- Wants to quit (not able)
- Time consuming
- Craving
Substance use criteria 5-7: social impairment
- Failure to fulfill social obligations
- Continued use despite negative social consequences
- Given up social/recreational/occupational activities
Substance abuse criteria 8-9: risk use
- Uses in physical hazardous situations
9. Continued use despite negative physical/psych consequences
Substance abuse criteria 10-11: pharmacological criteria
- Appearance of tolerance
11. Appearance of withdrawal sx
Effects of aldosterone
Causes cardiac fibrosis, decreases CO, which leads to Na+ reabsorption –> inc preload
Spironolactone
Aldosterone antagonist
CHF drug
Effects: inc Na excretion, dec fibrosis
AE: hyperkalemia, gynecomastia
Eplerenone
Aldosterone antagonist
CHF drug
More selective for aldosterone inhibitors (less gynecomastia)
Function of diuretics in treating CHF?
Reduce preload and cardiac size by decreasing plasma volume
Function of ACE-i, ARBs and ARNIs in treating CHF?
Dec afterload by reducing peripheral resistance
Dec preload by reducing aldosterone secretion
Captopril
ACE inhibitor
CHF drug
Blocks conversion of Ang I to II
AE: cough, angioedema, hyperkalemia (CAPTOPRIL)
AE C.A.P.T.O.P.R.I.L
Cough Angioedema Proteinuria/Potassium excess Taste change Orthostatic hypotension Pregnancy (C) Renal artery stenosis (C) Inc renin Leukopenia/liver toxicity
Enalapril
ACE-inhibitor
CHF drug
Blocks conversion of Ang I to II
AE: cough, angioedema, hyperkalemia
Candesartan
ARB
CHF drug
Blocks Ang II receptor
No cough
Valsartan
ARB
CHF drug
Blocks Ang II receptor
No cough
What does neprilysin do?
Same effects as AT II
Cross talk with AT II
Targets ANP/BNP which usually decrease renin, inc Na excretion, and inc vasodilation
ARNIs
Angiotensin receptor-neprilysin inhibitor
(ARB plus nep blocker)
Inhibiting both pathways has greater effect and greater decrease in morbidity and mortality
Sacubitril/valsartan
ARNI
Sacub blocks neprilysin, valsartan inhibits RAAS
AE: more angioedema, less renal, hypokalemia, and cough
Beta blockers in CHF
Inhibits adverse remodeling
Start and discontinue lowly
AE: hypotension, bradycardia, bronchospasm
CHF beta blocker drugs
Carvedilol Metoprolol (selective)
Ivabradine
Dec HR
Inhibits If channel to dec SA node firing
AE: Afib, Bradyarrhythmias, visual disturbance
Isosorbide Dinitrate
Vasodilator, dec preload
Mech: NO release, inc cGMP, less MLC phosphorylation (dec contraction)
Veins>arteries
Off time to prevent tolerance
BiDil
Isosorbide dinitrate + hydralazine
Strong preload and afterload decrease
Good for Af Am with CHF
Hydralazine
Dec afterload
Dilates arterioles
CHF drugs
How to treat diastolic HF (preserved EF)?
ACE, ARB, nitrates, diur
Rate control w/ B blockers and Ca blockers
Inc contractility with positive inotropes
Milrinone
Phosphodiesterase inhibitor
Increases contractility and vasodilators
Use: acute decompensated HF (not long term)
Digoxin
Cardiac glycoside, inc Ca
Mech: inhibit Na/K ATPase
Narrow TI
Toxicity when combined w/ abx, diuretics
HTN diuretics
HCTZ (Na/Cl inhibitor) - dec preload and vascular resistance
Amiloride (K sparing)
HTN drugs that cause direct vasodilation
Hydralazine
Minoxidil
Sodium nitroprusside
Prazosin
a-1 blockers (vasodilator)
HTN drug
Beware of first dose phenomenon
Guanethidine
Adrenergic inhibitor
HTN drug
Replaces and depletes NE
Reserpine
Adrenergic inhibitor
HTN drug
Binds to storage vesicles and makes them dysfunctional, long term treatment depletes NE
Methyldopa, clonidine
a2 agonists
HTN drugs
Reduce activity of neurons in the brain responsible for maintaining sympathetic activity
Which HTN drug can you use in pregnancy?
Methyldopa