P5 PHARMACOLOGY Flashcards
therapy of IBD depends on the
severity of the disease
incase of mild severity your chosen therapy is
topical corticosteroids
5-Aminosalicylates
incase of moderate severity your chosen therapy is
oral corticosteroids
immuno-modulaters
incase if severe IBD your chosen therapy is
Intravenous corticosteroids
cyclosporine / surgery
MOA of Aminosalicylates
anti-inflammatory , blocking prostaglandins /cytokines / T cell function
reason behind Aminosalicylates not reaching colon
getting absorbed from small intestines
5-ASA are bound with sulfasalazine due to the presence of what bond
azo bond
Examples of other 2 drugs containing azo bound
balsalazide , olsalazine
azo bound will help in increasing
Resistance of 5-ASA to small intestines degradation
Component in sulfasalazine that causes its side effects
sulfapyridine
side effects of sulfasalazine
angioedema , hepatotoxicity
other routes of administration for 5-ASA
- Enema -Suppository - Foam
incase of proctitis & sigmoid inflammation
what is your chosen route to administer 5-ASA
foam
incase of ONLY proctitis , what is your chosen route to administer 5-ASA
Suppository
incase of descending colon inflammation , your chosen route to administer 5-ASA
Enema
Formulations of topical corticosteroids
foam , enema , suppository
drugs available as topical corticosteroids
Hydrocortisone & budesonide
drugs available to be used intravenously corticosteroids
Hydrocortisone & methylprednissolone
you can use iv corticosteroids only for
1-7 days ( 1-2 days )
ADR of IV corticosteroids
acute fulminant colitis
Drugs available as oral corticosteroids
Prednisone & prednisolone & budesonide
if you suddenly stopped oral corticosteroids the patient will develop
adrenal insufficiency
course of treatment with oral corticosteroids
1-2 weeks
upon using immuno-modulators & biologics , patients might develop TB or secondary malignancies , this is due to
CD8 suppression