LRT Drugs Flashcards
Bronchodilator Meds
Xanthines
Sympathomimetics
Anticholinergics
Anti-inflammatory Meds
Inhaled Steroids
Leukotriene Receptor Antagonists
Immune Modulators
Xanthines protoype
Theophylline
Not the gold standard anymore
Xanthines TA
Directly effects the smooth muscle of the resp tract
Xanthines Indications
Treats COPD and bronchospasms and asthma
Xanthines Pharmaco
Cross placenta and milk!
Rapid GI absorption
Hepatic metabolism
Urine excretion
Xanthines Contraindications
GI problems
Coronary disease
Resp dysfunction
Renal or hepatic disease
Alcoholism
Hyperthyroidism
Xanthines Cautions
Prego and lactation
Xanthines AE
IRRITABILITY, RESTLESSNESS, DIZZINESS IF LEVELS HIGHER THAN 20 MCG/ML
Tremors, nervousness, insomnia, and tachyarrythmias can also occur when over 20mcg/mL.
All depends on level of theophylline in the blood
Xanthines DD Interactions
Substances in cigarettes
Sympathomimetics protoypes
ALBUTERAL
EPI
FORMOTEROL
SALMETEROL
Sympathomimetics TA
Increase the rate and depth of respirations
Sympathomimetics Indications
Some are short term/emergency use to reverse bronchospasm in allergic reactions or asthma attacks (albuterol, epi)
Others are longer acting and are taken on a schedule to decrease symptoms of COPD or asthma (formoterol, salmeterol)
Sympathomimetics Pharmaco
Does not cross!
Rapid distribution
Transformed to metabolites in the liver and urine excretion
Sympathomimetics Contraindications and Cautions
Conditions that would aggravate sympathetic stimulation (depends on severity)
Prego and lactation
Sympathomimetics AE
Fear, anxiety, restlessness, palpitations, tachycardia (think sympathetic nervous system, fight or flight)
Rare: life threatening paradoxical bronchospasms
Sympathomimetics DD interactions
General anesthetics cyclopropane and halogenated hydrocarbons
Other meds that increase HR and BP
Anticholinergics prototypes
Ipratropium and tiotropium
Anticholinergics TA
Causes relaxation of smooth muscle in bronchi
blocks action of acetylcholine at vagal mediated receptor sites
Anticholinergics Indications
Treats bronchospasm in those with COPD
Anticholinergics Pharmaco
Most not absorbed when inhaled
Metabolism, excretion and half life vary
Most are partially excreted unchanged in urine
Anticholinergics Contraindications
Known allergies
Anticholinergics Cautions
Any condition that would be aggravated by the anticholinergic or atropine like effects of the drug
prego and lactation
Anticholinergics AE
LESS AE THAN SYMPATHOMIMETICS
Dizziness, nervousness, headache, nausea, cough, visual changes