Drug Categories
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| ALPHA-ADRENERGIC BLOCKERS | dilate peripheral blood vessels, lowering of peripheral resistance and the lowering of blood pressure.
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| ANTACIDS | neutralize gastric acidity.
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| ANTIANGINALS | nitrates,calcium channel blockers, and b-adrenergic blockers.
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| Nitrates | dilate coronary arteries, decrease preload and afterload.
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| Calcium channel blockers | also dilate coronary arteries, but they also
decrease SA/AV node conduction
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| β -Adrenergic blockers | slow the heart rate, thus decreasing O2 use.
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| ANTICHOLINERGICS | Inhibit acetylcholine (autonomic nervous system)
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| ANTICOAGULANTS | Prevent clot formation
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| ANTICONVULSANTS | barbiturates,hydantoins,succinimides,benzodiazepines and others
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| ANTICONVULSANTS | Act to prevent seizures
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| ANTIDEPRESSANTS | MAOIs,tricyclics, and others
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| MAOIs | inhibit MAO and thus they increase epinephrine,
norepinephrine, serotonin, and dopamine
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| Tricyclics | block the reuptake of serotonin and norepinephrine in the
nerve endings, thus increasing the actions of both in the nerve cells
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| ANTIDIABETIC MEDICATIONS | insulins of varying kinds, and oral hypoglycemic agents
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| Insulin | lowers blood sugar, potassium and phosphate
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| Oral hypoglycemic agents | stimulate the β -cells of the pancreas to
release insulin
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| ANTIDIARRHEALS | some decrease water content of stool, some slow
down GI peristalsis
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| ANITDYSRHYTHMICS | • Class I
• Class II
• Class III
• Class IV
• Others
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| Class I | decreases any disparity in the refractory period, increases the
duration of action potential and effective refractory period
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| Class II | slows down the rate of SA node discharge and conduction through the AV node.
Increases recovery time and decreases the heart rate
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| Class III | increases effective refractory period as well as the duration of action potential
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| Class IV | decreases SA node discharge and slows the conduction velocity through the AV node; they also inhibit calcium movement
across the cell.
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| Others | slows conduction through the AV node (adenosine) and
increases the refractory period in the AV node and decreases conduction velocity (digoxin)
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| ANTIFUNGALS | decreases sodium, potassium and nutrients in the cell and increases cell permeability
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| ANTIHISTAMINES | antagonists of histamine
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| ANTIHYPERTENSIVES | • angioten
sin-converting enzyme (ACE) inhibitors
• b-adrenergic blockers
• calcium channel blockers
• centrally acting adrenergics
• diuretics
• peripherally acting antiadrenergics, and
• vasodilators
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| Angiotensin | dilatation of the arterial and venous systems occur through the suppression of renin-angiotensin I to angiotensin II conversion
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| Centrally acting adrenergics | inhibit impulses in the CNS and the
sympathetic nervous system, decreases cardiac output, blood pressure
and pulse rate
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