Sympathomimetics Flashcards
Q
A
Pneumonic for beta receptors
You have 1 heart (Beta 1) and 2 lungs (Beta 2)
Beta 2 agonist used to suppress premature labor, but cardiac stimulatory effects may be hazardous to mother and fetus
Terbutaline
Beta 2 agonist toxicity
Skeletal muscle tremor
Beta 1 agonist toxicity
Sinus tachycardia and serious arrhythmias
Longer acting Beta 2 agonists is recommended for prophylaxis of asthma
Salmeterol
Often mixed with local anesthetic to
Reduce the loss from area of injection
Newer alpha 2 agonist (apraclonidine and brimonidine) treat glaucoma
Reduce aqueous synthesis
Alpha agonist used to produce mydriasis and reduce conjunctival itching and congestion caused by irritation or allergy, it does not cause cycloplegia
Phenylephrine
Chronic orthostatic hypotension can be treated with
Midodrine
Shock due to septicemia or myocardial infarction is made worse by
Increasing afterload and tissue perfusion declines
Alpha 1 agonist toxicity
Hypertension
Epinephrine and dipivefrin are used for
Glaucoma
This is the drug of choice for anaphylactic shock
Epinephrine
Long acting sympathomimetic, sometimes used to improve urinary continence in children and elderly with enuresis
Ephedrine
These agents increase blood flow and may be beneficial in treatment of acute heart failure and some types of shock
Beta1 agonists
Phenylisopropylamines that are used legitimately and abused for narcolepsy, attention deficit disorder, and weight reduction
Amphetamines
These agents decrease blood flow or increase blood pressure, are local decongestant, and used in therapy of spinal shock (temporary maintenance of blood pressure which may help maintain perfusion)
Alpha1 agonists
Short acting Beta 2 agonists that is drug of choice in treatment of acute asthma but not recommended for prophylaxis
Albuterol
The selective agents lose their selectivity at
high doses
