ACE Inhibitors Flashcards
What is the mechanism of action for ACE Inhibitors?
ACE Inhibitors work by blocking angiotensin converting enzyme. This enzyme converts angiotensin I to angiotensin II causing vasoconstriction. Blocking this enzyme leads to vasodilation and reduced blood pressure.
ACE Inhibitors are indicated for what 4 things?
- Hypertension
- Heart failure with reduced ejection fraction
- Prevention of renal disease in diabetics and those with chronic kidney disease
- Post heart attack management
What does ACEI stand for?
Angiotensin Converting Enzyme Inhibitor
Contraindications/precautions for ACEI
- Allergy to any component of ACEI
- Box warning: fetal toxicity, avoid in breastfeeding
- Contraindicated: history of angioedema, bilateral renal artery stenosis, concurrent use with Aliskiren or Entrensto and within 36 hours of switching to and from Entresto.
What are the side effects of ACEI? TOPCARD
Teratogenic
Orthostatic hypotension
Potassium increase
Cough (dry)
Angioedema
Renal impairment
Dizziness
What are ACEI counseling points?
- Take with or without food at the same time daily.
- Monitor potassium levels, creatinine, blood pressure and hypersensitivity reactions
- Tell providers about dry cough
- Avoid potassium supplements or potassium containing substitutes
- Seek help if facial, lip or tongue swelling occurs
Prinivil or Zestril
Lisinopril
ACEI
Monopril
Fosinopril
ACEI
Vasotec
Enalapril
ACEI
Altace
Ramipril
ACEI
Altace
Ramipril
ACEI
Accupril
Generic name?
Drug class?
Quinapril
ACEI
Lotensin
Benazepril
ACEI
What does ARBS stand for?
Angiotensin II receptor blockers
What is the mechanism of action of ARBS?
It works by blocking angiotensin II from binding to its receptors leading to a decrease in blood pressure.
What are ARBS indicated for?
- Hypertension
- Heart failure
- Heart attack and stroke prevention
- Prevention of renal disease in diabetics
Contraindications/precautions for ARBS
- Allergy to any components to ARBS
- Box warning: fetal toxicity, avoid in breastfeeding
- Contraindicated: patients with bilateral renal artery stenosis or concurrent use with Aliskiren in diabetes
What are the side effects of ARBS?
CHOPDAT lettuce for ARBys
Cough (occurs less than ACEI
Headache
Orthostatic hypotension
Potassium increase
Angioedema (rare)
Teratogenic
Counseling points for ARBS
- Take with or without food at the same time daily
- Monitor potassium levels, creatinine, blood pressure and hypersensitivity reactions
- Avoid abrupt discontinue
- Avoid potassium supplements or potassium containing substitutes
- Seek help if facial, lip or tongue swelling
Diovan
Valsartan
ARBS
Cozaar
LosartanCozaar
ARBS
Benicar
Olmesartan
ARBS
Atacand
Candesartan
ARBS
Micardis
Telmisartan
ARBS
Avapro
Irbesartan
ARBS
What does CCBs stand for?
Calcium Channel Blockers
What are the two subclasses of CCBs?
- Dihydropyridine
- Non-dihydropyridine
CCBs are indicated for?
- Hypertension
- Angina
- Atrial fibrillation and flutter (Non-DHP CCBs)
Contraindications/precautions for CCBs
- Allergy to any component of the drugs
- Caution in patients with aortic stenosis-May reduce coronary perfusion resulting in ischemia
- Non-DHP CCBs contraindicated: hypotension, decompensated heart failure, cardiogenic shock, pulmonary congestion, acute MI, 2nd or 3rd degree AV block, and sick sinus rhythm
- Increase angina and MI have occurred with initiation or dosage titration of DHP CCBs
Mechanism of action of CCBs
Ca+ influx causes contraction of heart and vascular smooth muscle. Ca+ channel blockers inhibit L-type Ca+ channels causing decrease Ca+ entry into the cells leading to vasodilation, decrease contractility, and decrease HR.
Side effects of CCBs
“Cow-cium channel blockers like to SHRED grass”
Slower heart rate
Hypotension/headache
Reflex tachycardia
Edema (peripheral)
Dizziness
Norvasc
Amlodipone
Dihydropyridine CCBs
Plendil
Felodipine
Dihydropyridine CCBs
Adalat CC
Procardia XL
Nifedipine XL
Dihydropyridine CCBs
Cardizem
Diltiazem
Non-Dihydropyridine CCBs
Calan
Verapamil
Non-Dihydropyridine CCBs
Counseling points for CCBs
- Monitor for hypotension, peripheral edema, fatigue, dizziness and bradycardia
- Diltiazem and verapamil are moderate CYP3A4 inhibitors
- Avoid grapefruit juice
- Report if angina worsens with initial dose or dose changes
- Do not stop abruptly: reflex tachycardia or angina may occur
Indications for Beta-Blockers
- Hypertension
- Angina
- Prevention of heart attacks
- Arrhythmias (atrial fibrillation/flutter, SVT, ventricular arrhythmias)
- Heart failure with reduced ejection fraction (metoprolol succinate, carvediolol, bisoprolol - shown to reduce mortality and morbidity)
- Glaucoma
Contraindications/precautions in Beta-Blockers
- Allergy to any components of Bet-Blockers
- Box warning: do not withdraw abruptly due to reflex tachycardia, hypertension and angina
- Contraindicated: sinus bradycardia, 2nd or 3rd degree heart block and sick sinus syndrome
- Avoid in patients with active asthma exacerbation
- Diabetes: May potentiate or mask signs of hypoglycemia
Mechanism of action of Beta-Blockers
Beta-Blockers competitively inhibit NE and EPI from binding onto beta-adrenergic receptors causing decrease heart rate, contractility and blood pressure
Side effects of Beta-Blockers
beta is a BAD FISH
Bradycardia/bronchospaspm
AV block/arrhythmias
Dizziness/depression
Fatigue
Impotence
S/S of hypoglycemia are masked (especially non-selective BBS)
Hypotension
Counseling points
Take medication with food to help decrease side effects
Monitor for bradycardia or hypotension
Advise diabetics that it can mask symptoms of hypoglycemia
Avoid abrupt discontinuation and gradually reduce dose over 2 weeks
Lopressor or Toprol XL
Metoprolol
Beta1 selective BB
Tenormine
Atenolol
Beta1 selective BB
Bystolic
Nebivolol
Beta1 selective BB
Zebeta
Bisoprolol
Beta1 selective BB
Sectral
Acebutolol
Beta1 selective BB
Betoptic
Betaxolol
Beta1 selective BB
Brevibloc
Esmolol
Beta1 selective BB
Coreg
Carvedilol
Non-selective BB
Normodynew
Labetalol
Non-selective BB
Inderal
Propranolol
Non-selective BB
Indication for Hydralazine
Hypertension
Hypertensive emergency
Heart failure with reduced ejection fraction (in combination with isosorbide dinitrate)
Contraindications/precautions for Hydralazine
- Allergy to Hydralazine
- Avoid in coronary artery disease or mitral valvular rheumatic disease
- Long term administration of >200 mg a day can cause DRUG INDUCED LUPUS ERYTHEMATOSUS (DILE) symptoms like skin reactions, muscle/joint pain, fever and anemia. d/c drug.
Mechanism of action of Hydralazine
Direct vasodilation of arterioles (little effect on veins) by interfering with Ca+ movement within arterial smooth muscle cells that are responsible for contraction leading to vasodilation, decreased vascular resistance and reduced blood pressure
Side effects of Hydralazine
Hydralazine is a HYDRANTS
Hypotension
Yakking (vomiting)
Dizziness
Rash
Anorexia
Nausea
Tachycardia (reflex)
Systemic lupus erythema
Apresoline
Hydralazine
Counseling points for Hydralazine
Take with food to increase bioavailability
Avoid abrupt discontinuation—> rebound hypertension
Monitor heart rate and blood pressure
Report signs of chest pain, palpitations, hypotension, SLE, hepatotoxic and tachyarrythmias
Indications for Clonidine
Hypertension (THINK: usually used for resistant hypertension or in patients who can’t swallow since it comes in patch form)
ADHD
Contraindications/precautions in Clonidine
- Allergy to Clonidine or it’s components
- Active liver disease
- Concurrent use with MAO inhibitors
Mechanism of action for Clonidine
Stimulates alpha-2 adrenoreceptor receptors in the brainstem that activates an inhibitory neuron —> decrease sympathetic outflow —> decrease systemic vascular resistance, heart rate and blood pressure
Side effects of Clonidine
HTN DRUG
Headache
Tired
Not able to poop (constipation)
Dizziness
Rash (patch stickiness)
Unable to stay awake
GI side effects N/V
Counseling points of Clonidine
- Avoid abrupt discontinuation due to rebound HTN
- Use caution while driving or other tasks requiring alertness because drowsiness is common within the first few weeks
- Avoid alcohol and other CNS depressants
- Apply patch to a hairless area of the skin (arms and torso)
Catapres
Clonidine in patch form
Kapvay
Clonidine ER tablet for ADHD
Indications for Nitrates
- Angina prophylaxis
- Angina acute (nitroglycerin)
- Anal fissures chronic (nitroglycerin)
- Hypertension (nitroglycerin IV and isosorbide)
- Heart failure with reduced ejection fraction (isosorbide dinitrate in combination with Hydralazine)
Contraindications/precautions for Nitrates
- Allergy to Nitrates or it’s components
- Concurrent use with erectile dysfunction medications (PDE-5 inhibitors like sildenafil) or riociguat (use to treat pulmonary hypertension) can lead to severe hypotension
- Contraindicated: hypotension, severe anemia, increased intracranial pressure bradycardia or tachycardia