Drugs for Angina Pectoris 2 Flashcards
beta blocker drugs
Propranolol (Inderal), metoprolol (Lopressor), carvedilol (Coreg)
beta blockers decrease cardiac oxygen demand by
blocking Beta 1 receptors from norepinephrine and epinephrine
result of beta blockers**
decrease heart rate, decrease blood pressure, decrease oxygen demand and oxygen consumption
adverse effects of beta blockers
Bradycardia; Decreased AV conduction; Reduction of contractility; Asthmatic effects; Caution with diabetes; Insomnia; Depression; Bizarre dreams; Sexual dysfunction
bradycardia adverse effect
speed up the heart too much
reduction of contractility adverse effect**
not going to pump as hard (left ventricle); negate autotropic effect
asthmatic adverse effects if not
a selective beta blocker
caution of beta blockers with
diabetes - hides symptoms of hypoglycemia
calcium channel blocker drugs
verapamil (Isoptin, Calan) diltiazem (Cardizem)
which calcium channel blocker do you see most often
diltiazem (Cardizem)
diltiazem (Cardizem)
see to decrease HR **; decrease number of times muscle contracts and to relax vessels; so vasodilating effect
calcium channel blockers do what
• Block calcium channels in vascular smooth muscle (Vascular Smooth Muscle)-primarily on the coronary vessels and in the AV node
calcium channel blockers increase
blood flow to the heart
calcium channel blockers decrease
impulses through the AV node
calcium channel blockers used to decrease
decrease workload of heart and slow the heart rate
calcium channel blockers used to treat
HTN, atrial fibrilliation, stable and variant angina
CA blockers used for
hypotension; atrium fiber latrim (decrease impuluses through AV node); stable and varient angina (will open up vessels)
“dipines”
peripheral vessel CA channel blockers - block CA from vessels = expand/vasodilate; also treats high bp or treatment of afib
dipines examples
Amlodipine (Norvasc); Felodipine (Plendil)**; Nifedipine (Procardia XL, Adalat); Nicardipine (Cardene); Isradipine (Dynacirc); Nisoldipine (Sular); Clevidipine (Cleviprex) for IV use vs. esmolol or IV nicardipine)
Clevidipine (Cleviprex) for
IV use vs. esmolol or IV nicardipine
dipine MOA
Reflex tachycardia; Hypotension (increased with Beta blockers); Bradycardia; Heart failure; AV block
Verapamil side effect—
significant constipation
Cardizem (diltiazem) side effect—
less significant constipation than Verapamil
Dipines side effects
significant peripheral vasodilation with peripheral edema (swollen feet—pedal edema); headaches; hypotension;
probably with a Ca channel blocker will have
constipation and swollen feet
antiplatelet drug ex.
aspirin (anti inflammatory)
antiplatelet MOA
inhibits production of thromboxane, which under normal circumstances binds platelet molecules together to repair damaged blood vessels.
antiplatelets also block **
action of cyclo-oxygenase, an enzyme necessary for thromboxane and prostaglandin production.
cyclo-oxygenase,
clumping up of platelets
if chest hurts then
CHEW aspirin (525mg) on the way to the hospital
studies show that aspirin will
prevent death of tissue
aspirin used long term
low doses to prevent heart attacks, strokes, and blood clot formation in people at high risk.
Aspirin may be given immediately
after a heart attack to decrease muscle damage or of the death of cardiac tissue.
Aspirin is indicated for all patients with
acute CAD regardless of age and should be continued indefinitely in all patients with documented CHD; 81.5 mg per day for chronic use
Recommended dosage in acute setting is
160-325 mg— CHEW it!
Recommend low-dose ASA –
men age 45-79; women age 55-79
aspirin is both **
anitplatelet and antiinflammatory
Risk of bleeding with aspirin is usually offset by –
aspirin’s cardiovascular benefits
men do better with MI then women
bc women’s coronary arteries are smaller so harder to treat
For men? 1° benefit –
is to prevent MI
For women? 1° benefit is to
prevent ischemic stroke
Make sure BP is controlled to reduce risk –
of hemorrhagic stroke
Take regular ASA with –
food or use enteric-coated aspirin IF needed to reduce stomach irritation (only helps the local effects, does NOT reduce risk of bleeding)
aspirin and ibuprofen
Take aspirin first thing in a.m. ; Take ibuprofen 2 hours later
Use Aleve (naprosyn) if
an NSAID is required on a daily basis
ASA also reduces risk of
colorectal cancer occurrence and recurrence Adverse Effects of ASA
The main undesirable side effects of aspirin are
gastrointestinal ulcers, stomach bleeding, and tinnitus, especially in higher doses.
In children and adolescents, aspirin is
no longer used to control flu-like symptoms or the symptoms of chickenpox or other viral illnesses, owing to the risk of Reye’s syndrome
Reye’s syndrome
neurological disorder that can cause permanent damage