Wk 1 Obstructive Airway Pharmacology Flashcards
Three subcategories of bronchodilators
Beta2 Agonists
Anticholinergics
Xanthine derivatives
Three subcategories of anti-inflammatories
Leukotriene receptor antagonist (LTRAs)
Inhaled glucocorticoids
Mast cell stabilizers
Bronchodilators are used to treat __ respiratory diseases
ALL
Bronchodilators MOA
Relaxes bronchial smooth muscle which causes dilation of bronchi and bronchial airways
Beta-adrenergic agonists can be __-__ or __-__.
short acting or long acting
What is the suffix for beta2-adrenergic agonists (usually)?
-erol
What type of beta2-adrenergic agonist should be used in an asthma attack?
short-acting only
What are the short-acting beta2-adrenergic agonist drugs? (2)
albuterol and levalbuterol
What is the brand name of albuterol?
Proventil
What is the brand name of levalbuterol?
Xopenex
Albuterol can be given how?
PO or inhalant
Levalbuterol can be given how?
inhalant
All long-acting beta2-adrenergic agonist drugs are __.
inhalants
What are the two long-acting beta2-adrenergic agonist drugs?
salmetrol and formoterol
What is the brand name of salmetrol?
Servent
What is the brand name of formoterol?
Foradil
Albuterol is inhaled every __ hours.
4-6
Salmetrol is inhaled every __ hours.
12
Short-acting beta2-adrenergic agonist drugs are __ drugs.
RESCUE
Long-acting beta2-adrenergic agonist drugs are __ drugs.
preventer
Long-acting beta2-adrenergic agonist drugs are give how frequently?
12-24 hrs
What is the MOA of beta2-adrenergic agonist drugs?
Mimics the action of the SNS, fight or flight. Relaxes bronchial smooth muscle which causes dilation of bronchi and bronchial airways by stimulating beta 2 receptors throughout the lungs
What do non-specific adrenergic drugs stimulate?
beta1, beta2, AND alpha receptors
What is an example of a non-specific adrenergic drug?
epinephrine
What do non-selective beta-adrenergic drugs stimulate?
beta1 and beta2 receptors
What is an example of a non-specific adrenergic drug?
metaproterenol
Non-selective adrenergic drugs stimulate alpha receptors with =
vasoconstriction
Non-selective adrenergic drugs (ex: epinephrine) decrease what?
Edema/swelling in mucous membranes and limits the amount of secretions
Non-selective adrenergic drugs (ex: epinephrine) also stimulate which receptor?
beta1 and beta2
beta1 and beta2 receptors =
cardiovascular effects
What vital sign changes would you see with epinephrine adminstration?
Increased BP and increased HR
Epinephrine also decreases __
bronchoconstriction
If you give epinephrine for bronchodilation, what do you need to be aware of?
You will see other systemic effects such as increased BP and increased HR
Non-selective adrenergic drugs (ex: epinephrine) also stimulates what system?
CNS
If you stimulate the CNS, what symptoms might you see?
nervouness/tremors
What are beta2-adrenergic agonist drugs indicated for?
prevention or relief of bronchospasm related to asthma/bronchitis/other pulmonary conditions
What are contraindications for beta2-adrenergic agonist drugs?
uncontrolled hypertension, cardiac dysrhythmias, or a patient at high risk for stroke
Beta2-adrenergic agonist drugs can be taken with __ __, but this may diminish effects
beta blockers
Avoid use of beta2-adrenergic agonist drugs with what two types of drugs?
MAOIs and sympathomimetics
Why should use of beta2-adrenergic agonist drugs be avoided with MAOIs and sympathomimetics?
Because they can cause hypertension
Why would diabetics need higher doses of their meds if on Beta2-adrenergic agonist drugs?
beta2-adrenergic agonist drugs can cause a raise in blood sugar
Non-selective adrenergic drugs have the most __ __ of adrenergic agonist drugs.
side effects
Beta2-adrenergic agonist drugs can cause __ OR __
hypertension or hypotension
What can you reverse effects of beta2-adrenergic agonist drugs with?
beta blockers but watch for bronchospasm
Most beta2-adrenergic agonist drugs have a very short __ __
half life
What are the side effects of beta2-adrenergic drugs?
Insomnia, restlessness, anorexia, cardiac stimulation, hyperglycemia, tremor, vascular headache
Why are beta2-adrenergic drugs almost always given inhaled?
It minimizes the systemic effects
What type of inhaler is a MDI?
Metered dose inhaler
What type of inhaler is a DPI?
Dry powder inhaler
Selective beta2-adrenergic agonist drugs are mostly used in __.
Asthma
Selective beta2-adrenergic agonist drugs are given through __ or __
MDI or nebulizer
What is the first line of treatment for an acute asthma attack?
beta2-adrenergic agonist drugs through MDI or nebulizer
Use of more than 1 cannula of albuterol per month indicates what?
Poor control of asthma and need for initiating anti-inflammatory therapy
How many actuations (puffs) per canister of albuterol?
200
What is not recommended for use of albuterol?
Regular scheduled daily use
Albuterol is often used to prevent __ __ __
Exercise induced asthma
__ is not for acute treatments, it’s a maintenance drug
Salmeterol
How often is salmeterol usually given?
BID inhalation
With salmeterol, what is more common in african americans?
Asthma related deaths
What are the indications for salmeterol?
Worsening of COPD or severe asthma
What is notable about salmeterol?
It’s always given with an inhaled corticosteroid, never given alone
Anticholinergics work on what type of receptors?
acetylcholine