Pharmacotherapy of Obesity Flashcards
What is obesity?
An imbalance between energy intake and expenditure leading to energy storage
What is BMI?
Measures how a patient’s TOTAL body weight compares to their height
What is the formula for BMI?
(Weight in kg)/(height in meters)^2
Why is BMI not perfect?
Overestimates adiposity in edema/masculinity
Underestimates adiposity in asians
What BMI is considered underweight?
<18.4
What BMI is considered normal?
18.5-24.9
What drugs can cause Unintended weight gain?
Anticonvulsants
Antidepressants
Antipsychotics
Hormones
What medications affect NT?
Serotonin, Dopamine, and Histamine
When prescribing drug therapy for obesity what must be included?
Lifestyle changes
What are the nonpharmacologic therapies for obesity?
- Reduced caloric intake
- Increased physical activity
- Behavior modification
What obesity meds can be used in Type 2 DM?
Orlistat, Phentermine/Toprimate, and Liraglutide/Semaglutide
What obesity meds can be used in HTN?
Orlistat
The others are cautioned
What obesity meds can be used in CAD?
Orlistat
The others are cautioned
What obesity meds can be used in Dysrhthmia?
Orlistat
The others are cautioned
What obesity meds can be used in HF?
AVOID ALL
What obesity meds can be used in CKD?
Cautioned for ALL
What obesity meds can be used in Kidney Stones?
Liraglutide/Semaglutide
AVOID others
What obesity meds can be used in Depression
Orlistat, Phentermine/Toprimate, and Liraglutide/Semaglutide
What obesity meds can be used in Anxiety?
Orlistat, Phentermine/Toprimate, and Liraglutide/Semaglutide
What obesity meds can be used in Glaucoma?
AVOID Phentermine/Topiramate
OK for others
What obesity meds can be used in Women trying to Conceive?
Caution in ALL
What obesity meds can be used in Elderly Patients?
Orlistat, Phentermine/Toprimate, and Liraglutide/Semaglutide
Orlistat Brand?
Xenical Rx
Alli OTC
What are the pearls of Orlistat?
Supplement with fat-soluble vitamins
Phentermine Brand?
Adipex-P Rx
When should you take Phentermine?
1-2 hrs post breakfast
37.5 mg usual dose
What are the pearls of Phentermine?
Short term
AVOID with SSRIs
Do not admin at HS
Phentermine-Topiramate Brand?
Qysmia Rx
Qsymia pearls?
Decreased sweating (oligohydrosis)
Teratogen
Naltrexone-Bupropion Brand?
Contrave
What obesity medication has a REMS program?
Qysmia
Qysmia Algorithm
- Start 3.75/23 QD for 14 days
- Increase to 7.5/46 QD for 12 weeks
- > 3% Weight Loss?
4a. YES = continue or increase to 11.25/69 for 14 days
4b. NO = DC - After 11.25/69 increase to 15/92 for 12 weeks
- > 5% Weight Loss?
7a. YES = Continue 15/92
7b. NO = DC
What is the MD of Qysmia for 3% weight loss?
7.5/46
What is the MD of Qysmia for 5% weight loss?
15/92
Liraglutide Brand?
Saxenda Rx
What is the dosing for Saxenda?
0.6 mg SQ QD
Target 3 mg QD
For Saxenda when do you DC?
After 16 weeks and weight loss <4%
What are the warnings for Saxenda and Wegovy?
Black Box: thyroid tumor
Warn: pancreatitis
Semaglutide Brand?
Wegovy Rx
For Wegovy when do you DC?
After 12 weeks of therapy and weight loss <5%
Cellulose and Citric Acid Brand? (superabsorbent hydrogel)
Plenity
What is the dose for Plenity?
3 capsules with 16 oz water
What prescription meds are used off label for obesity?
GLP Agonists, Topiramate, and Lamotrigine
What are medication adjustments after Bariatric Surgery?
- 2 months post-op all meds should be in liquid form, crushed, or open cap
- Reduce meds for DM, HTN, and GERD
- Avoid enteric coated or ER
- Avoid Sorbitol
- Contraception for 1-2 yrs post-op
- Avoid NSAIDs and Bisphosphonates
- Supplement vitamins
- Increase monitoring
- LIFELONG vitamin and mineral supplements