Therapeutics of asthma Flashcards
(37 cards)
What is a SABA?
short-acting beta 2 androgenic receptor agonist
what is an example of a SABA?
salbutamol
how do SABA’s work?
Adrenaline works on the smooth muscles of the airways to cause relaxation, causing vasoldilation.
what type of inhaler is a SABA
reliever or rescue
how long do SABAs last?
effects only last for an hour or two
what are ICS’s?
inhaled corticosteroids
what is an example of a ICS?
beclometasone
how do ICS’s work?
reduce the inflammation and reactivity of the airways
what type of inhaler is an ICS referred to as
maintenance or preventer
what is a LABA?
a long-acting beta 2 agonists
what is an example of a LABA?
salmeterol
what is the difference between a SABA and a LABA?
they are much longer lasting
what is a LAMA?
a long-acting muscarinic antagonists
what is an example of a LAMA?
tiotropium
how do LAMA’s work?
Block acetylcholine receptors, which leads to bronchodilation.
what is an example of a leukotriene receptor antagonist?
montelukast
how do leukotriene receptor agonists work?
they block the effect of leukotrienes, so inhibit inflammation, bronchoconstriction and mucus secretion
how does theophylline work?
relaxes bronchial smooth muscle and reducing inflammation
what is a disadvantage to theophylline?
it only has a narrow therapeutic window and can be toxic in excess so monitoring plasma theophylline levels in the blood is required
when is blood plasma levels monitored in asthma patients on theophylline?
5 days after starting treatment and 3 days after each dose change
when is blood plasma levels monitored in asthma patients on theophylline?
5 days after starting treatment and 3 days after each dose change
what is a MART?
maintenance and reliever therapy
what does MART consist of?
combination inhaler containing a low-dose inhaled corticosteroid and a fast-acting LABA
what is a MART used
both regularly as a preventer and also as a reliever when they have symptoms