Pharmacology Flashcards
tamoxifen uses
breast cancer, menopausal women
tamoxifen moa
competitive inhibition of endogenous estrogen binding to target tissue. estrogen-responsive gene expression altered, prevents cell activation and proliferation
administration of tamoxifen
oral
side effects of tamoxifen
hot flush
risk of endometrial cancer
vte
tamoxifen metabolism
liver cyp3a4 (affected by grapefruit)
cyp2d6 (cough and cold meds can affect)
tamoxifen toxicity
neurotoxicity (tremor, dizziness)
pembrolizumab moa
pd1 blocker, binds to pd1 of T cell and prevents cancer cell from binding, preventing inhibition of T cell activation
pembrolizumab uses
inhibits cancer metastasis
pembrolizumab se
infusion related se
ND
joint pain
LT immune related inflamx on lung
pembrolizumab ci
corticosteroids
imunosuppressants
pregnant
hypersensitivity to other ab therapy
leuprorelin moa
analogue, inhibition of pituitary GnRH release, reduces androgen production in testes, androgen-sensitive prostate cancer cells undergo apoptosis
leuprorelin monitoring
first few weeks of therapy: PSA
after 4 weeks of therapy: LH, FSH, TTS
leuprorelin administration
SC or IM at 1,2,3 mths interval
leuprorelin se
infusion pain
flushes
headache
gi disturbances
libido loss
leuprolide ci
hypersensitivity to gnrh agonists
heart disease
risk for osteoporosis
bicalutamide moa
androgen receptor antagonist, impairs cell proliferation and triggers apoptosis in cancer cells
bicalutamide administration
oral
bicalutamide se
gynaecomastia
fatigue
sexual dysfunction
gi
biaclutamide metab
liver
tamoxifen uses
breast cancer, menopausal women
tamoxifen uses
breast cancer, menopausal women
metformin uses
t2dm
obese pt
metformin moa
inhibits gluconeogenesis in liver, upregulate protein kinase, increasing glucose uptake into tissues
metformin se
anorexia
gi disturbances
vit b12 deficiency
metformin excretion
urine (avoid patients with renal insufficiency)
glipizide moa
SU bind to SU receptor proteins and inhibits Katp channel mediated K+ efflux, triggering clacium dependent exocytosis of insulin granules from pancreatic B cells.