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Drug Categories

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