Musculoskeletal Drugs Flashcards
Bisphosphonates MOA
inhibit osteoclast activity, promote osteoclast apoptosis
Bisphosphonates Examples
- Alendronate (Fosamax)
- Risedronate (Actonel)
- Ibandronate (Boniva)
- Zolendronate (Reclast/Zometa)
Considerations when taking Bisphosphonates
take on empty stomach, separate from other medications, don’t lie down for 30 minutes to 1 hour after taking
Bisphosphonates Route of Administration
- Alendronate: oral daily, or oral weekly in high dose
- Risendronate: weekly
- Ibandronate: monthly
- Zolendronate - IV yearly
Bisphosphonates Indications
- treatment and prevention of osteoporosis
2. Paget’s disease
Bisphosphonates Contraindications
- Hypocalcemia
- Poor renal function
- Significant GI disease (ie esophagitis)
- Invasive dental procedures (can cause osteonecrosis of the jaw)
Bisphosphonates Side Effects
- GI - nausea, dyspepsia, reflux, cramps
- esophagitis or esophageal erosion
- osteonecrosis of the jaw
Lab Work with Bisphosphonates
- Ca and BMP (kidney function) prior to starting
2. Monitor serum calcium, phosphorous, alkaline phosphatase
Recommended daily intake of Vit D3
- 600 IU/day
2. 800 IU/day for females over age 71
Effect of Vit D
increase serum calcium concentrations (increase calcium absorption from intestine and distal renal tubules, regulate bone resorption and formation)
Vit D effect on PTH
inhibits PTH
What kind of vitamin is vitamin D?
lipophilic
Indications for Vit D
- osteoporosis
- hyperparathyroidism
- osteomalacia
- Rickets
Contraindications for Vit D
hypercalcemia
Vit D drug interactions
- Vit D analogues - calcitrol, paricaltrol, and doxercalciferol –> hypercalcemia –> headache, nausea, dizziness, vomiting, and loss of appetite
- Hydrocholorthiazide –> hypercalcemia
Side effects of Vit D
- Vit D toxicity –> GI pain, renal stones, psychiatric disturbance
How are sunlight and Vit D related?
UV -B rays convert 7-dehydrocholesterol to pre-vitamin D3 which then becomes Vit D3
sunlight recommendations
5-30 minutes of sun exposure between 10 am and 3 pm twice a week, to face, arms, legs, or back
Types of NSAIDs
- Nonselective
2. COX-2 selective
Nonselective NSAID examples
- ibuprofen (Motrin/Advil)
- naproxen (Aleve/Anaprox)
- ketorolac (Toradol)
- indomethacin (Indocin)
- etodolac
COX-2 selective NSAID example
Celecoxib/Celebrex
NSAID MOA
acts on arachidonic acid pathway and blocks COX-1 and COX-2 and causes decrease in prostaglandin formation which results in decreased inflammation, pain, and fever
Function of COX-1 pathway
production of protective lining in stomach
platelet aggregation
Function of COX-2 pathway
inflammatory response
Pharmacokinetics of NSAIDs
- well absorbed
- hepatic metabolism (most)
- short to intermediate half-lives (2-12 hr)
Indications for NSAIDs
pain, inflammation, fever
Contraindications for nonselective NSAIDs
history of peptic ulcers, GI bleeding, chronic inflammation of GI tract, history of sensitivity