Osteoporosis and Gout Flashcards
Ergocalciferal and Cholecalcideral are what?
Vitamin D compounds
- Ergocalciferol is D2
- Cholecalciderol is D3
What has a longer half life and greater potency than human calcitonin?
Calcitonin Salmon
What are the effects of calcitonin salmon?
- inhibits the activity of osteoclasts to decrease bone resorption
- inhibits renal tubular reabsorption of calcium to increase calcium excretion
Can calcitonin-salmon be used to prevent osteoprosis?
NO! it is used for the tx of established osteoporosis
- also used in Pagets disease
- can be used in hypercalcemia but not preferred
How is calcitonin-salmon admisterd?
- intranasal spray
- parenteral for SC or IM injection
What drug class is structural analogs of pyrophosphate?
bisphosphonates ( alendronates)
How is the bisphosphonate alendronate administered?
PO
How is the bisphosphonate risedronate administered?
PO
How is the bisphosphonate ibandronate administered?
- PO
- IV
I-bandronate= I for IV
How is the bisphosphonate tiludronate administered?
PO
How is the bisphosphonate zolendronic acid administered?
IV- 1x/year
- avoids GI problems
- commonly associated with osteonecrosis of the jaw
- does dependent kidney damage (rarely afib)
what are the effects of bisphosphonates?
- incorporated into bone then inhibit bone resorption by decreasing the number and activity of osteoclasts
- microfracture healing is also impaired
A drug class used for :
- Postmenopausal osteporosis
- osteoporosis in men
- glucocorticoid induced osteoporosis
- Paget disease of bone
- hypercalcemia of malignancy
bisphosphonates
Serious side effects of what drug include:
- esophagitis +/- ulceration
- Osteonecrosis of the jaw
- atypical femur fractures
Bisphosphonates (alendronate)
- overall are generally very safe
What is Raloxifene?
Selective estrogen receptor modulator (SERM)
What drug is an estrogen blocker in breast and uterus and estrogen agonist in bone?
Raloxifene
What drug is used to prevent and treat postmenopausal osteoporosis as an estrogen agonist and reduce the risk of breast cancer as an anti estrogen?
Raloxifene
What are the toxicities associated with Raloxifene?
- DVT
- Pulmonary embolism
- Stroke
discontinue at least 48 hours before planned/prolonged immobilization
What drug is a truncated (1-34) version of endogenous 1-84 PTH made by recombinant DNA that has full PTH activity?
Teriparatide (PTH 1-34)
-paratide sounds like Teri’s -para(thyroid) medications
What is the only osteoporosis drug that increases bone formation?
teriparatide (PTH 1-34)
- can work by stimulating osteoclasts or blasts
–> continuous tx= osteoclast stimulation and bone resorption
–> given daily as pulsed therapy causes osteoblast responses to predominate
How is teriparatide administered?
once daily using refilled injectors
What drug is a first in class monoclonal ab RANKL inhibitor?
denosumab
What is RANKL?
Receptor activator of nuclear factor kappa beta ligand