Pharmacotherapy of diabetes Flashcards
Microvascular DM complications
neuropathy, diabetic retinopathy, diabetic kidney disease or dephorpathy
T2DM is _____ (pathophysiology)
insulin resistance
decreased insulin production from β cells
What are the CV risk factors from DM
HTN, dyslipidemia, CKD, obesity, smoking, FH of premature CD
Glycemic goal (A1C) for patients is less than
7%
preprandial glucose goal? post prandial glucose goal?
80-130mg/dL
<180mg
First line therapy for T2DM are
metformin and lifestyle (weight management and physical activity)
If after first line for t2dm (and no ASCVD, HF or CKD), A1c is still not at target what is the first thought? What to do with that ?
Is there a hypoglycemia risk.
Add DPP-4q, GLP-1 RA, SGLT2, TZD
If after first line for T2dm, weight is still a problem and a1c is not at goal, add
GLP1 and or SGLT2 i
If after first line for T2dm, cost is a problem and a1c is not at goal, add
Sulfonureas, TZD
T2DM + HF should be on
metformin and SGLT2 inhibitor regardless of A1C
T2DM + ASCVD should be on
metformin with GLP1 and/or SGLT2i
T2Dm and CKD should be on
metformin and SGLT2i. GLP1 if SGLT2i is not tolerated well
If you need to add on insulin for T2DM, initate at
10IU/day or .1-.2IU/KG a day
longtime basal insulin
What are the nonpharmagologic treatments for T2DM
nutrition therapy, physical activity, smoking cessation, psychosocial issues
Metformin is a ____ (class)
biguanides
MOA of biguanides
decrease hepatic glucose production, decrease intestinal absorption of glucose, improve insulin sensitivity
eGFR needs to be ___ to use biguanides.
> 45
if 30-45, don’t start but if continued, reduce dose by 50%
<30-> contraindicated
The metformin AEs are
predominantly GI, metallic taste, B12 deficiency, lactic acidosis
What are the sulfonylreas used?
glimepiride, glipizide, glyburide
MOA of sulfonylureas
stimulate insulin release from β cells, reduce glucose output from liver, increase insulin sensitivity at peripheral target sights
What are safety concerns with SUs
may be associated with increased CV mortality
can’t use with sulfonamide allergy
What are adverse effects of SUs
hypoglycemia (glyburide not recommended)
increased risk of C
weight gain
What are the thiazolidinediones used
pioglitazone
rosiglitazone is discontinued
Thiazolidinedione MOA
peroxisome proliferator-activated receptor γ agonist-> influences production of things involved in glucose/lipid metabolism
TZDs are not recommended in individuals with
renal impairment from fluid retention. Heart failure
bladder cancer, increased LDL cholesterol, bone fractures
What are the Dipeptidyl Peptidase-IV
alogliptin, linagliptin, saxagliptin, sitagliptin
What is the renal constrictions with sitagliptin
CrCl<50-> only 50mg PO daily
DDP-IV MOA
inhibit DDP-4 enzyme-> prolong incretin (GLP-1)-> released in response to meal-> up insulin synthesis and release from β cells, decreased glucagon secretion from α cells
Renal dose adjustment is needed in these three DDP-4 inhibtors
sitagliptin, saxagliptin, alogliptin (no dose adjustment for linagliptin)
DDP4 inhibitors interact with
CYP3A4
DDP4 AEs
acute pancreatitis, joint pain, increased risk of HF exacerbations
FDA approved GLP-1 agonists
semaglutide, lixisenatide, dulaglutide, liraglutide, exenatide
GLP1 agonist MOA
enhance glucose dependent insulin secretion. slows gastric emptying.
Don’t prescribe GLP-1 agonists in people with
hx of pancreatitis, c-cell thyroid cancer, multiple endocrine neoplasia syndrome type 2 (MEN2)
What are AEs of GLP-1 agonists
GI side effects (N/V, diarrhea), injection site, acute pancreatitis risk?
SGLT2 inhibitor MOA
inhibits reabsorption of filtered glucose and lower renal threshold for glucose by inhibit SGLT2 in proximal renal tubules
Don’t use SGLT2 inhibitors in individuals with
Hx of DKA, amputations, frequent UTIs, severe renal impairment (ESRD, dialysis)
AEs of SGLT2 inhibitors
bone fractures, DKA, GI/GU infections, UTIS, risk hypotension, Fournier’s gangrene, amputation risk for canagliflozin
Bypass the algorithm and just give insulin if
a1c>9 and need to get it down fast
or someone comes in with catabolic features (weight loss, ketosis)