4. Drugs used in asthma -hemostasis Flashcards
Major risk factor of asthma
atopy
relievers
short-acting beta2 agonists
muscarinic antagonists
methylxanthines
iv corticosteroids
controllers
corticosteroids long acting beta 2 agonists mast cell stabilzers anti-IGE antibodies leukotriene antagonists
short-acting beta 2 selective agonist
albuterol levalbuterol terbutaline metaproterenol pirbuterol procaterol fenoterol bitolterol
drug of choice for acute asthma attacks
salbutamol (short-acting beta 2 selective agonist)
SE salbutamol
tachycardia tremors nervousness restlessness arrhythmias tolerance tachyphylaxis
short-acting beta 2 selective agonist
usual DOA
2-4 hours
short-acting beta 2 selective agonist
that can be given IV
terbutaline
short-acting beta 2 selective agonist
that can be given PO
salbutamol, terbutaline
beta 2 selective agonist (long acting)
salmeterol formoterol cleneterol bambuterol arformoterol vilanterol indaaterol olodaterol
beta 2 selective agonist (long acting) used for
asthma prophylaxis
muscarinic receptor antagonist for asthma
prevents vagal stimulated bronchoconstriction
ipratropium
tiotropium
umeclidinium
glycopyrrhonium
methyxanthine
theophyline
aminophyllien
pentoxyfylline
doxofylline
MOA theophylline
phosphodiesterase inhibition
adenosine receptor antagonist
causes bronchodilation
use of methylxanthine
asthma (prophylaxis for nocturnal attacks) intermittet claudication (pentoxyfylline only)
this muscarinic receptor antagonist
does not cross BBB
glycopyrronium
muscarinic receptor antagonist
used as monotherapy for COPD
antispasmodic and reduce salivation with anesthetics
glycopyrronium
theophylline antidote in overdosage
beta blockers
mast cell stabilizer
prevents calcium influx, stabilizes mast cells ,
preventing degranulation and release of histamine, leukotrienes, and other mediators
cromolyn B
uses of cromolyn B
asthma prophylaxis
allergies (eyes,nose,GI)
SE cromolyn B
cough
airwasy irritation
corticosteroid for asthma
fluticasone beclomethasone budesonide ciclesonide flunisolide mometasone triamcinolone
inhibitor of phospholipase A2, reduces expression fo COX
corticosteroid
fluticasone beclomethasone budesonide ciclesonide flunisolide mometasone triamcinolone
DOC asthma prophylaxis
corticosteroid
fluticasone beclomethasone budesonide ciclesonide flunisolide mometasone triamcinolone
SE fluticasone
oropharyneal candidiasis
minimal steroid toxicity (adrenal suppression)
mild growth retardation
for status asthmaticus
tx
IV prednisolone and hydrocortisone
lowest systemic steroid toxicity
ciclesonide
leukotriene synthesis inhibitor
zileuton
Uses of zileuton
asthma prophylaxis
exercise-, antigen-, aspirin induced bronchospasm
SE of zileuton
flulike syndrome headache drowsiness dyspepsia hepatitis elevation of liver enzymesq
leukotriene receptor antagonist
montelukast
zafirlukast
pranlukast
blcoks cysteinyl leukotriene-1 receptor for leukotrienes C4,D4, and E4
prevents airway inflammation and bronchoconstriction
Montelukast
Uses of monteukast
asthma prophylaxis
exercise-, antigen-, aspirin induced bronchospasm
anti - IgE antibody
Binds IgE antibodies on mast cells. Reduces rxn to inhaled antigen
Omalizumab
Uses of omalizumab
prophylaxis of severe refractory asthma not responsive to all other drugs
SE Omalizumab
Fever angioedema anaphylactic rxns Idiopathic severe thrombocytopenia nasopharyngitis upper abdominal pain
these drugs prevent release /action of mediators such as leukotrienes, cytokines
cromolyn
steroids
zileuton
omalizumab
This drugs inhibit acute symptoms of asthma
beta agonists
theophylline
muscarinic antagonists
leuktriene antagonists
This drugs inhibit inflammation
bronchial hyperreactivity
steroids
cromolyn
leukotriene antagonists
Drugs used for cough
Mucolytic N-acetylcysteiene Carbocisteine Ambroxol Bromhexine Erdosteine
Expectorant
Guaifenesin
Antitussives Dextromethophan codeine Butamirate citrate Levodropropizine
Inhibits PDE and calcium entry
Vitex negundo
mucolytic
N-acetylcysteiene Carbocisteine Ambroxol Bromhexine Erdosteine
Expectorant`
Guaifenesin
centrally acting Antitussives, opiod antitussive
Dextromethophan
codeine
Inhibits PDE and calcium entry
Vitex negundo
reduce disulfide bridges that bind glycopreotins to other proteins such as albumin
also act as antioxidants and may reduce airway inflammation
mucolytic
NAC used for
cough
SE of NAC
chest tightness disagreeable odor drowsiness fever hemoptysis inc volume of bronchial secretions irritatin of tracheal and bronchial tract nausea rhinorrhea stomatitis vomiting
act as an irritat to gastric vagal receptors and recruit afferent parasympathetic reflexes that cause glandular exocytosis of a less viscous mucus mixture
guiafenesin
SE of guiafenesin
drowsiness incomplete or infrequent bowel movements inducing of a relaxed easy state stomach cramps dizziness headache rash nausea vomiting stomach upset
antitissives CI in
bacterial lung infections
asthma
bronchiectasis
chronic bronchitis (suppurating bronchial inflammation)
antitussives cause harmful sputum thickening and retention
dec sensitivity of medullary/CNS cough centers to peripheral stimuli and dec mucosal secretion
dextromethorphan
when is morphine indicated for cough?
intractable cough from bronchial asthma
this antitussive has no addictive potention, no analgesic effect, produces less constipation and inhibition of mucociliary clearance
dextromethorphan
centrally acting antitussive,non-opioid antitussive
butamirate citrate
peripherally acting antitussive
Levodropropizine
act through receptors in the brainstem to inhibit cough
butamirate citrate
SE butamirate
somnolence nausea vomiting diarrhea dizziness hypotension
non-opioid drug with a peripheral action by inhibiting the apprent pathways that generate cough reflex (modulates C-fibre activity)
Levodropropizine
SE of levodropropizine
nausea vomiting heartburn diarrhea fatigue weakness drowsiness dizziness headache palpitations
inhibits PDE III and inhibits Ca entry (acts as a CCB) which explain bronchodilatory effect
inhibits COX 2
vitex negundo
most common type of anemia
microcytic hypochromic anema caused by iron deficiency
lab pic of iron deficiency anemia
dec iron
dec ferritin
inc TIBC
megaloblastic anemias are caused by deficiency of
vitamin B12
folic acid
most common type of megaloblastic aneia
pernicious anemia
storage protein of iron
ferritin
iron bound to this transport protein
transferrin
unexplained presence of iron deficiency anemia in any adult with exception of premenopausal, multiparous woman mandates
throrough endoscopic/ radiographic visualization of entire large bowel
hematopoietic growth factor
oral
Ferrous sulfate
ferrous gluconate
ferrous carbinate
parenteral
iron dextran
sodium ferric gluconate complex
iron sucrose
Cyanocobalamin
Hydroxocobalamin
Methylcobalamin
Folic acid
Folacin (pteroylglutamic acid)
Folinic acid/ Leukovorin
Methylfolate
Epoietin Alfa
FIlgrastim
Oprelvekin (IL-11)
Eltrombopag
Plerixafor
Romiplostim
ferrous sulfate
SE
black stools (obscure GI loss)
Acute overdosage - necrotizing gastroenteritis , abdominal pain, metabolic acidosis , bloody diarrhea, shock, lethargy, dyspnea
chronic iron overload - hemochromatosis , organ failure (heart, liver, pancreas), death
iron content of iron preparations
Fe carbonate 100% fe fumarate 33% Fe sulfate, dried 30% Fe sulfate, hydrated 20% Ferric ammonium sulfate 18% Fe gluconate 12%
acute iron intoxication most common in
children - accidental ingestion of iron supplementation
tx of acute iron intoxication
removal of unabsorbed tablets from the gut
correction of acid base and electrolyte abnormalities
parenteral administration of deferoxamine which chelates circulating iron
triad of hemochromatosis
cirrhosis
DM
skin pigmentation
CDS
hemochromatosis
occurs
inherited abnormality in iron absorption
persons who receive frequent transfusions for tx of hemolytic disorders
(thalassemia major)
tx of hemochromatosis
phlebotomy
chronic administration of deferoxamine
or derasirox
heavy metal chelator
deferoxamine
deferasirox
deeriprone
uses of deferoxamine
acute iron poisoning
hemochromatosis not adequately tx by phlebotomy