MSK, Skin, CT drugs Flashcards
Enzyme that synthesizes leukotrienes
5-lipoxygenase
Zileuton drug MOA
Inhibits 5-lipoxygenase
Glucocorticoids MOA
Inhibit Phospholipase A2 and NF-k-beta
Celecoxib MOA
COX-2 inhibitor
Aspirin MOA
Irreversibly inhibits COX-1 and COX-2
Mechanism of NSAIDs
Inhibit COX-1 and COX-2 by covalent acetylation
Epoprostenol MOA
Decreases platelet aggregation and vascular tone
Alprostadil MOA
Decreases vascular tone
Dinoprostone MOA
Increases uterine tone
Carboprost MOA
Increases uterine tone
Acetaminophen MOA
Reversibly inhibits COX mostly in CNS
Acetaminophen hepatic necrosis MOA
Metabolite NAPQI depletes glutathione
Treatment for acetaminophen toxicity
N-acetylcysteine - regenerates glutathione
Leukotriene receptor antagonist
Montelukast and Zafirlukast
Celecoxib side effects
Increased risk of thrombosis; sulfa allergy
Celecoxib indications
RA and OA
Leflunomide MOA
Reversibly inhibits dihydroorotate dehydrogenase preventing pyrimidine synthesis suppressing T-cell proliferation
Leflunomide indications
RA and psoriatic arthritis
Leflunomide side effects
Diarrhea, HTN, hepatotoxicity and teratogenicity
Bisphosphonates MOA
Pyrophosphate analogs bind hydroxyapatite in bone and inhibit osteoclasts (anti-resorptive)
Bisphosphonate indications
Osteoporosis, hypercalcemia, Paget disease, osteogenesis imperfecta, metastatic bone disease
Bisphosphonate side effects
Esophagitis, osteonecrosis of jaw, atypical stress fractures
Teriparatide MOA
Recombinant PTH analog increases osteoblast activity (increases bone growth)
Teriparatide indications
Osteoporosis
Teriparatide side effects
Increased risk osteosarcoma and transient hypercalcemia
Teriparatide contraindications
Paget disease, high ALP, or prior cancer or radiation therapy
Allopurinol MOA
Competitive inhibitor of xanthine oxidase
Allopurinol indications
Gout, tumor lysis syndrome, Lesch-Nyhan syndrome
Allopurinol side effects
Increases 6-MP concentrations
Febuxostat MOA
Xanthine oxidase inhibitor
Probenecid MOA
Inhibits resorption of uric acid in proximal convoluted tubule
Probenecid side effects
Inhibits secretion of PCN and can precipitate uric acid calculi
Pegloticase MOA
Recombinant uricase catalyzes uric acid metabolism to allantoin
NSAID that binds and inhibits microtubule polymerization impairing neutrophil chemotaxis and degranulation
Colchicine
TNF-alpha side effects
Predispose to infection, reactivation of TB
Etanercept MOA
Fusion protein blocks TNF-alpha
Etanercept indications
RA, psoriasis, ankylosing spondylitis
Infliximab and all other -mab drugs MOA
Anti-TNF-alpha monoclonal antibody
Infliximab and all other -mab drugs indications
Psoriasis, Ankylosing spondylitis, IBD, RA (PAIR)