Respiratory drugs Flashcards
What are diseases of the lower respiratory tract?
COPD, Asthma, emphysema, and bronchitis
What is bronchial asthma?
This is recurrent and reversible shortness of breath that occurs as a result of the airways of the lungs becoming more narrow
What is an asthma attack and what is it called if its prologed?
Asthma attacks are sudden onsets of asthma and prolonged asthma attacks that don’t respond to drug therapy is called status asthmaticus
What is COPD?
This is a respiratory disorder where there is chronic limited airflow, systematic manifestations, and significant comorbidities
What is chronic bronchitis?
This is when there is a cough and sputum for at least 3 months for 2 consecutive years
What are bronchodialtors and what are the three classes within this?
They relax the bronchial smooth musclewhich casues dilation of the bronchi and bronchioles that were narrowed by the disease. The three classes of bronchodilators are beta adrenergic agonist, anticholinergics, and xanthine derivatives
What are the two main types of beta adrenergic agonist and give examples
SHort acting beta agonist(Salbutamol or Ventolin) and long-acting beat agonist (salmeterol or serevent)
What is budesonide/formeterol fumarate dihydrate (symbicort)?
It is a long acting beta agonist and glucocorticoid steroid combination inhaler that is used as a reliever or rescue treatment for severe asthma
What do beta-adrenergic agonists do?
They are used during asthma attacks, and they reduce airway constriction to restore airflow
What are the three subtypes of beta adrenergic agonists
non-selective adrenergics, nonselective beta adrenergics, and selective beta 2 drugs
What is the MOA of beta-adrenergic drugs
These drugs bind onto beta 2 receptors and cause the relaxation of the bronchial smooth muscle causing bronchial dilation and increased airflow
What are the contraindications of beta-adrenergic agonists?
Known drug allergies, uncontrolled cardiac dysrhythmias, and high risk of stroke
What are the adverse effects of beta 1 and beta 2 adrenergic agonsits?
Tachycardia, tremor, anginal pain, vascular headache
What are some drug interactions to be aware of for beta-adrenergic agonists?
nonselective beta-blockers, MAOIs, sympathomimetics,
What type of drug is salbutamol sulphate(ventolin), and what routes is it given in?
It is a short-acting beta 2 specific broncho-dilating beta agonist
What type of drug is salmeterol (Serevent) and how should it never be used?
It is a long acting beta 2 agonist bronchodilator