RHEUM Pharmacology Flashcards
MOA: binds CD80 and CD86 and prevents T-cell co-stimulatory signal engaging with CD28.
Abatacept
MOA: Binds TNF-alpha; blocks its interaction with p55 and p75 surface receptors
Adalimumab
MOA: Competitively inhibits IL-1 alpha and IL-1beta binding to IL-1R1.
Certolizumab pegol
MOA: neutralizes membrane associated and solubule human TNF-alpha
Etancerept
MOA: Endogenous p75 acts as TNF antagonist but does NOT affect TNF alpha production or serum levels (just binds it up)
Etancercept
MOA: binds to and neutralizes both soluble and membrane TNF-alpha
Golimumab
Infliximab
MOA: Fab domain binds CD20 and Fc domain and recruits immune effector function to mediate B-cell lysis
Rituximab
MOA: binds both soluble (serum and synovial fluid) and membrane bound IL-6 receptors and inhibits signaling
Tocilizumab
MOA: Inhibition of AICAR transformylase →AICA riboside accumulation (inhibits adenosine deaminase)→ increase in adenosine concentration→ inhibition of lymphocyte proliferation; suppression of IL-1, TNF, INF-gamma, histamine release from basophils, chemotaxis of neutrophils; increases IL-4
Methotrexate
MOA: Active form (mesalamine) is anti-inflammatory (inhibits prostaglandin and leukotriene prodution.
Sulfasalazine
MOA: A77 1726 inhibits dihydroorotate dehydrogenaase (DHODH) which is located in cell mitochondria and catalyzes key step in de novo pyrimidine synthesis. T-and B-lymphocytes cell cycle progression is arrested and their interactions are interrupted; Ig production is suppressed; CYTOSTATIC
Leflunomide
MOA: Increases intracellular vacuole pH and alters processes like digestion of antigenic proteins (so no peptide-MHC protein complexes can be formed to stimulate CD4+ T cells—immune response is down-regulated.)
Hydroxychloroquine
Side effect:
- Immunosuppression
- Pulmonary Toxicity
- Cat. X Teratogen
- NO Breastfeeding
- Avoid w/vaccination
- Malig. lymphoma
- GI toxicity
- Dermatologic RXN
Methotrexate
Side effect:
- Hematotoxic
- NOT for people with hypersensitivity to sulfa drugs
- Increased drug levels in slow acetylators
Sulfasalazine
Side effect:
- Immunosuppression (not for patients with immunodeficiency, bone marrow dysplasia, or uncontrolled infection).
- Cat. X Teratogen
Leflunomide
Side effect:
- Corneal opacities, kerato/retinopathy
- Hepatotoxicity
- Blood dyscrasias
- CNS toxicity (ex. ototoxicity, seizure)
Hydroxychloroquine
Monitoring tests for Methotrexate.
1) CBC with diff.
2) LFTs
3) Serum Creat/ BUN
4) Serum uric acid
Monitoring tests for sulfasalazine.
1) CBC with diff.
2) LFTs
3) Serum Creat/ BUN
4) Urinalysis
Monitoring tests for Leflunomide.
1) CBC with diff.
2) LFTs
3) Pregnancy test
4) Serum electrolytes (drug increases uric acid in urine/ lowers blood levels)
Monitoring tests for Hydroxychloroqine
1) CBCs
2) Opthalmalogic exam.
Major adverse effects for “biological drugs” used to treat RA.
- Immunosuppression (especially with upper respiratory infections, watch out)
- Malignancy
- CHF or hypotension
- Blood dyscrasias
- Lupus-like syndrome
- SJS/TEN
Which biological drug for RA requires that you use reliable contraception while you take the therapy and for 4-6 months after?
Rituximab
Which biological IV solution contains maltose (may complicate blood glucose tests)?
Abatecept IV
What NSAID is available formulated with misoprostol (PGE1 inhibitor) to reduce the risk of duodenal ulcers.
Diclofenac
Which NSAID also has a rectal preparation available?
Indomethacin
Whaich NSAID also has a parenteral preparation available?
Ketorolac
Which NSAID is COX-2 selective?
Celecoxib
Depolarizing agents.
Curiums and Curoniums (steroids) and D-Tubocurarine
Non-depolarizing agent.
Succinylcholine
Reversal agents.
“stigmines”
Edrophonium
Sugammedex
Do depolarizing or non-depolarizing have longer half lives?
non-depolarizing have longer half lives
AE: Non-depolarizing drug that causes seizures by liver metabolism building up laudanosine.
Atracurium
AE: Neuromuscular Blocking Agents that block Cardiac M receptor.
pancuronium
rocuronium
AE: Neuromuscular Blocking agents that block cause histamine release.
Tubocurarine
Atracurium