Shared Flashcard Set

Details

Endo Path
Insulin
23
Pharmacology
Graduate
11/05/2010

Additional Pharmacology Flashcards

 


 

Cards

Term
What are the rapid acting insulin preparations, and what is their onset time?
Definition
Lispro, aspart, glulisine, crystalline zinc (30 min)
onset time: ~15 minutes
Term
What is the duration of the different insulin preparations?
Definition
rapid acting: 3-6 hours (regular insulin is 6-8 hrs)
intermediate acting: 12-16 hours
long acting: 24-36 hours (detemir is 12-24)
Term
What are the intermediate & long acting insulin preparations, and what is their onset time?
Definition
1-2 hours
lente insulin(zinc) (12-16)
NPH insulin (protamine) (12-16)
insulin glargine (24+)
insulin detemir (12-24)
Term
What are the adverse effects from overdose of insulin preparation?
Definition
hypoglycemia: fatigue, rapid HR, confusion, coma, localized & systemic allergic rxns
Term
What factors increase the dose requirement for insulin?
Definition
hyperthryoidism
stress (surgery, injury, mental)
cessation of physical exercise
increased food intake
drugs (estrogens, thiazide diuretics)
Term
How do you treat emergency ketoacidosis?
Definition
IV injection of insulin
Term
What are the pre-mixtures?
Definition
70% NPH & 30% Aspart
50% NPH & 50% Lispro
Term
How do sulfonylureas work?
Definition
They increase insulin by:
bind to receptors near K+ channels & close them preventing K+ efflux, depolarize the cell, Ca channels open/Ca flows in, insulin is secreted
Term
What is the result of chronic administration of sulfonylureas?
Definition
decreased glucagon & potentiated effects of insulin
Term
What are the adverse effects of sulfonylureas?
Definition
hypoglycemia, GI Sxs, muscle weakness, mental confusion
Term
What are the 1st generation sulfonylureas and what is their duration of action?
Definition
tolbutamide (6-12)
tolazamide (10-14)
chlorpropamide (up to 60hrs)
Term
What are the 2nd generation sulfonlyureas, and what is their duration of action?
Definition
10-24hrs
glyburide
glipizide
glimepiride
Term
Repaglinide/Nateglinide
Definition
oral hypoglycemic agent that stimulates insulin secretion (closes K+ channels)
lasts 1-3 hours
taken only w/meals
Term
Metformin
Definition
does NOT cause hypoglycemia
decreases gluc production and increases gluc uptake in the liver
requires insulin to be effective
Term
What are the adverse effects of metformin?
Definition
lactic acidosis in renal patients
metallic taste, GI upset, anorexia
Term
acarbose
Definition
inhibits alpha-glucosidase so carbs are not hydrolyzed; delays absorption of glucose (taken at beginning of meal)
Term
What are the adverse effects of acarbose?
Definition
flatulence, cramps, diarrhea
may reduce iron absorption
Term
rosiglitazone/pioglitazone
Definition
decrease insulin resistance by increasing transcription of insulin-responsive genes
decreases gluconeogensis and ^ gluc uptake
Rosiglitazone in combo w/metformin
Term
What are the adverse effects of rosiglitazone/pioglitazone?
Definition
weight gain, edema, ^ risk of heart failure
Term
Sitagliptan/Saxagliptan
Definition
potentiate insulin synthesis/release, decrease glucagon production
inhibits DPP4 (prevents metab of incretin hormones)
AE: mild GI upset, hypoglycemia
Term
What is the only oral hypoglycemic agent that does not cause hypoglycemia?
Definition
Metformin
Term
exenatide
Definition
injectable:2x/day--added on to other meds (metformin or sulfonylurea)
GLP1 receptor agonist
stimulates insulin when glucose is high
delays gastric emptying
blocks glucagon release
AE: nausea
Term
pramlintide
Definition
injectable analog of amylin
decreases glucagon secretion
modulates post-prandial glucose
to tx type I: combine w/insulin
to tx type II: combined w/insulin, metformin, or sulfonylureas
Supporting users have an ad free experience!