Unit XIV Bone & Joint (Chapters 59 & 61) Flashcards
Treatment goals for Rheumatoid Arthritis (4)?
Relieving symptoms (Pain, inflammation, stiffness)
Maintaining joint function and ROM
Minimize systemic involvement
Delay disease progression
Non-drug therapies for Rheumatoid Arthritis?
Physical therapy (massage, warm baths, and applying heat to affected areas) Proper rest and exercise to decrease joint stiffness and improve function (NOT TO EXCESS)
Drug Classes for treatment of Rheumatoid Arthritis (3)?
NSAIDS
Glucocorticoids
Disease-modifying antirheumatic drugs (DMARDS)
Role of NSAIDS in the treatment of RA?
Quick relief of joint pain/inflammation
Used until DMARDS on board (then withdrawn)
DON’T delay disease progression
Role of Glucocorticoids in treatment of RA?
Quick relief of joint pain/inflammation, particularly used for flares & with DMARDS until they take effect
CAN delay disease progression
Can not be used long term because of toxicity/adverse effects
Role of Disease-modifying antirheumatic drugs (DMARDS) in treatment of RA?
Reduce joint destruction and slow progression
MOA of DMARDS?
Interfere with immune and inflammatory responses
3 types of DMARDS?
Conventional (traditional)
Biologic
Targeted
MOA of Conventional (traditional) DMARDS?
Extensive effects on the immune system
MOA of Biologic DMARDS?
Work on cytokines
MOA of Targeted DMARDS?
Block specific pathways inside cells of the immune system
Do all NSAIDS work the same in every patient?
All have antirheumatic effects but some may respond differently to others
Try multiple to see which is best for the patient
Black Box warning for NSAIDS (3)?
Thrombotic events
GI Ulceration
Bleeding
Which NSAID should be used when there is a high risk for GI Ulceration and low risk from thrombosis?
Celebrex
What is the NSAID dose range when employed for RA (higher or lower than ‘regular’ use)?
Higher
ASA can be 5.2 g/day
Delivery systems for glucocorticoids for treatment of RA (2) and when each is used?
1) Oral formulations with generalized symptoms (low-grade fever and other systemic effects)
2) Intra-articular injections when limited to specific joints to give relief with limited systemic adverse effects
Can NSAIDS and Glucocorticoids be used together?
No–discontinue NSAIDS when using glucocorticoids r/t increased GI bleeding.
Which type of DMARDs is the least expensive?
Conventional
List examples of Conventional DMARDs (2)
Methotrexate
Hydroxychloroquine (Plaquenil)
What is the first-line Conventional DMARD for use of RA treatment?
Methotrexate
Which DMARD works faster than other DMARDs?
Methotrexate
How long does it take for the effects of Methotrexate to take effect?
3-6 weeks
What must always be prescribed with Methotrexate?
Folic Acid
Adverse Effects of Methotrexate (4)?
Hepatic fibrosis
Bone Marrow Suppression
GI Ulceration
Pneumonitis (general inflammation of lung tissue)
Monitoring parameters with Methotrexate?
LFTs
CBC
What dose of Folic Acid must be given in conjunction with Methotrexate?
5mg/week
What is the role of Folic Acid when given in conjunction with Methotrexate?
Reduces GI & Hepatic Toxicity
Contraindications of Methotrexate (5)?
Pregnancy Breastfeeding Blood Dyscrasias Immunodeficiency Liver Disease
Drug interactions with Methotrexate (3)?
Alcohol
LIVE VACCINES
Inactivated vaccines require revaccination 3 months after therapy is stopped)
What vaccines should be given prior to starting treatment with Methotrexate (5)?
Pneumonia Flu Hep B HPV Herpes Zoster
Black Box warning with Methotrexate (4)?
Toxicity of bone marrow, liver, lung, and kidney
Skin reactions
Hemorrhagic Enteritis
GI perforation
What drug is typically combined with Hydroxychloroquine (Plaquenil) in the treatment of RA?
Methotrexate
How long does it take for Hydroxychloroquine to take effect after the start of treatment for RA?
3-6 months
What is the most significant adverse effect risk with Hydroxychloroquine?
Retinal Damage (producing irreversible blindness) Loss of vision is directly related to dosage, low doses only for long term use)
Adverse effects of Hydroxychloroquine (7)?
Retinal damage/vision loss
Cardiomyopathy
Varying degrees of AV heart block
BBB
Can prolong QT interval (increases risk for ventricular dysrhythmias)
Hypoglycemia
GI distress (taking with food or milk helps)
Monitoring parameters with Hydroxychloriquine
(1)?
Ophthalmologic exam before beginning therapy and at least every 6 months
Examples of Biologic DMARDs?
Etanercept (Enbrel)
Adalimumab (Humira)
Drug class of Biologic DMARDs?
Tumor Necrosis Factor Inhibitors
Monitoring parameters for Methotrexate?
LFTs (due to potential liver damage)
CBC and platelets (due to immunosuppressant
effects)
Long or short half-life with Hydroxychloriquie?
Extremely long 1/2 life of 40 days
MOA of Biologic DMARDs?
Specific immunosuppressant meds that target different parameters on the inflammatory cascade.
What is the delivery system of most biologic DMARDs?
Injection or Infusion
Black Box Warning with Etanercept (Enbrel)
Increased risk for serious systemic infections (TB and HBV) and sepsis
Drug Interactions with Etanercept (Enbrel)
Other immunosuppressant drugs
Adverse Effects Etanercept (Enbrel)
Significant immune suppression
Monitoring Parameters with Etanercept (Enbrel)
CBC
Platelets
*to monitor for significant infection
Patient education related to Etanercept (Enbrel)
TB tests
Stay away from sick people (constantly immunosuppressed)
NO LIVE VACCINES (inactivated only)
Can Adalimumab (Humira) be used in combination with methotrexate and/or other DMARDs?
YES, often is
Adverse Effects of Adalimumab (Humira)?
Significant immune suppression
Monitoring Perameters with Adalimumab (Humira)
CBC
Platelets
Patient Eduation related to Adalimumab (Humira)
TB tests, stay away from sick people (constantly immunosuppressed)
NO LIVE VACCINES (inactivated only)
Example of Targeted DMARDs
Xeljanz
What class of drugs are Targeted DMARDs?
Janus kinase Inhibitors (JAK)
What is the delivery system of Targeted DMARDs?
Oral
Indications for use for Xeljanz?
Those who cannot take methotrexate or who did not respond well to Methotrexate
Adverse Effects of Xeljanz (4)?
Bone Marrow Supression
Bradycardia (with prolonged PR intervals)
Hyperlipidemia
Increased occurrence of malignancies
Patient education regarding Xeljanz?
TB Tests
Stay away from sick people (constantly immunosuppressed)
NO LIVE vaccines (only inactivated)
Black Box warning for Xeljanz?
Development of potentially fatal infections (TB in particular)
Drug Interactions with Xeljanz (3)?
CYP inhibitors
Other biologic DMARDs (DO NOT combine)
Other immunosuppressant agents (DO NOT combine)
What do osteoCLASTS do?
Reabsorb (break down) old bone
What do osetoBLASTS do?
Deposit new bone and increase bone mass
Where does absorption of Ca take place?
Small intestine
How is Ca excreted?
Kidneys
What vitamin increases Ca reabsorbtion?
Vitamin D
What are common sources of Vitamin D?
Sun
Diet
Supplements
What happens to Vitiam D requirements with age?
They increase
What mineral is essential to maintain solid bone structure?
Calcium
What is the function of Vitamin D in the role of Ca?
Vitamin D is necessary in order for Ca to absorb well.
What are non-drug measures for preventing osteopenia/osteoperosis (3)?
Weight-bearing exercises
Adequate Dietary Ca
Supplemental Vit D/Ca when necessary
What are first-line drugs for Osteoporosis?
Calcium Salts
Examples of Ca Salts
Calcium Carbonate–Tums, Rolaids
Calcium Citrate–Citracal
Adverse effects of Ca Salts?
Constipation
Diarrhea at high doses only
Calcium Salt Drug Interactions (4)?
Glucocorticoids (decrease absorbtion of Ca)
Can decrease the effectiveness of some antibiotics (tetracyclines & quinolones)
Can decrease the effectiveness of Thyroid medications
Can decrease the effectiveness of some anti-seizure meds (Dilantin)
Bisphosphonates (reduced absorption)
Thiazides (HYPERcalcemia) Loop Diuretics (HYPOcalcemia)
Can Calcium Salts be taken in conjunction with other medicines?
Ca salts should not be taken within 1 hour of other medicines (2 hours is better)
Ca Salt food interactions?
Oxalic acid (spinach, rhubarb, swiss chard, beets). These decrease the absorption of Ca.
Should Ca salts be taken with food or on an empty stomach?
Empty stomach
Types of Ca Supplements/Ca Salts (2)?
Calcium Carbonate
Calcium Citrate
Which is more widely used…Calcium Carbonate or Calcium Citrate?
Calcium Carbonate
Which is generally easier to tolerate…Calcium Carbonate or Calcium Citrate?
Calcium Citrate
Which is better absorbed…Calcium Carbonate or Calcium Citrate?
Calcium Citrate
Which is better for people with tendencies toward GI upset or other medication problems…Calcium Carbonate or Calcium Citrate?
Calcium Citrate
What class of drugs is the primary cornerstone treatment for osteoporosis in the US?
Bisphosphonates
MOA of Bisphosphonates?
Help improve bone density by decreasing the effectiveness of osteoCLASTS.
Examples of Bisphosphonates (4)
Fosamax
Boniva
Reclast
Actonel
What drug class are Fosamax, Boniva, Reclast, Actonel?
Bisphosphonates
What is the most widely used/FIRST LINE Bisphosphonate for the treatment of osteoporosis?
Alendronate (Fosamax)
Alendronate (Fosamax) Indications for use (3)?
Osteoporosis in post menopausal women
Osteoporosis in men
Glucocorticoid induced osteoporosis
Alendronate (Fosamax) Indications for use (3)?
Osteoporosis in postmenopausal women
Osteoporosis in men
Glucocorticoid induced osteoporosis
How to decrease risk of esophagitis caused by Alendronate (Fosamax(?
Take with full glass of water Remain upright (seated or standing) for at least 30 min after taking it
How to decrease the risk of esophagitis caused by Alendronate (Fosamax and Actonel)?
Take with a full glass of water Remain upright (seated or standing) for at least 30 min after taking it
Alendronate (Fosamax) food interactions (3)?
DO NOT TAKE with:
Food
Coffee
Orange Juice
*Take on an empty stomach with water
MOA of Alendronate (Fosamax)?
Inhibits bone reabsorption by decreasing the activity of osteoCLASTS
MOA of Risedronate (Actonel)
Incorporates itself into the bone for you to 5 years to help strengthen bones
Risedronate (Actonel) Indications for use?
Osteoporosis in postmenopausal women
Osteoporosis in men
Glucocorticoid induced osteoporosis
Risedronate (Actonel) Adverse effects(3)?
Flu-like symptoms
GI
ESOPHAGITIS
Ibandronate (Boniva) indications for use?
Prevention and treatment of post-menopausal osteoporosis
Ibandronate (Boniva) formulations for administration (and frequency)?
PO-once a month
IV-once every 3 months
Depends on preference/tolerance
Ibandronate (Boniva) Adverse Reactions?
PO-Mostly GI
IV-can cause renal insufficiency
Should Ibandronate (Boniva) be taken on empty stomach or with food?
Empty stomach with water
How long should patients remain upright after taking Ibandronate (Boniva)?
SIXTY minutes
vs. 30 minutes for Fosamax and Actonel
Zoledronic Acid (Reclast) Indications for use?
Osteoporosis in postmenopausal women
Osteoporosis in men
Glucocorticoid induced osteoporosis
How is Zoledronic Acid (Reclast) administered?
IV ONLY
Once a year or once every 2 years
Zoledronic Acid (Reclast) Adverse effects
Transient fever and flu-like symptoms Kidney Damage (dose dependent)
Use Zoledronic Acid (Reclast) with caution in what patients?
Renal Insufficiency
Estrogen therapy for prevention of osteoporosis (discouraged by research)requires what two factors?
Intact Uterus
Progestin Administration
Indication for use of Evista?
Prevention and treatment postmenopausal osteoporosis AND
REDUCE RISK for breast cancer
Selective Estrogen Receptor Modulators (SERMS) are CONTRAINDICATED when…(3)?
Patients with estrogen dependent cancer
Pregnancy
Women of childbearing age
Example of Selective Estrogen Receptor Modulators (SERMS)?
Raloxifene (Evista)
Tamoxifien
What drug class is Teriparatide (Forteo)?
Man-made form of Parathyroid Hormone
Teriparatide (Forteo) Indication for use?
Osteoporosis in postmenopausal women
Osteoporosis in men
Glucocorticoid induced osteoporosis
MOA of Teriparatide (Forteo)?
Interferes with osteoCLASTS
Increases bone deposition by building more osetoBLASTS
How is Teriparatide (Forteo) adminisered?
Auto inject pen
Teriparatide (Forteo) Adverse Effects?
GI Effects
Transient bone pain/arthralgia
What bone mineralization drugs can be used in infants/children?
Calcium and Vitamin D ONLY
What bone mineralization drugs can be used in Pregnancy and breastfeeding?
Calcium and Vitamin D ONLY
Administration of bone mineralization drugs in older adults (3)?
Estrogen (BEERS criteria)
Bisphosphonates (Increased risk of esophagitis)
Do not continue therapies beyond 5 years