A - 6. Glucocorticoids for oral and parenteral use Flashcards
Glucocorticoids origin
Zona fasciculata on adrenal cortex
Glucocorticoids feedback
Inihibits both hypothalamus (CRH release) and pituitary (ACTH) release
Cortisol main functions
Regulation of immune response
- inhibits IL-2 -> decreased T-cell prolifiration
Metabolism
- lipolysis and proteolysis -> gluconeogenesis
- increases insulin resistance
Blood pressure
- Upregulation of a1 receptors -> vasoconstriction
Indications for glucocorticoid treatment
Addisons
Rheumatoid arthritis
As immunosuppressants - asthma, SLE, other autoimmune diseases
Short acting glucocorticoids
Hydrocortisone (acts fast, low duration)
IV, IM, oral, topical
Intermediate acting glucocorticoids; names
Prednisone
Prednisolone
Methylprednisolone
Triamcinolone
Intermediate acting glucocorticoids; indications
Anti inflammatory
- acute asthma
Autoimmune conditions
- rheumatoid arthritis
IV, oral, IM
4x more potent than hydrocortisone -> lower doses
Long acting glucocorticoids
Dexamethasone
Oral, IV, IM or inhaled
Very potent
Used for diagnosis in Cushings (suppression test)
SE
Cushings like symptoms - iatrogenic cushings