Lecture 5 - Antihyperglycemic Agents Flashcards
What is the main difference between antihyperglycemic agents and hypoglycemics?
- reduced risk of hypoglycemia
What type of antihyperglycemic is metformin and what is its MOA?
(How it glucose output and uptake)
- biguanide
- decreases glucose output in liver
- increases insulin sensitivity on muscles and fat to increase uptake
What are the toxicities of biguanide (metformin)?
- lactic acidosis (especially renal insufficiency)
- megaloblastic anemia (rare)
- diarrhrea, nausea, GIT
Name two alpha-glucosidase inhibitors and list their MOA and toxicities
(Works in the GI tract)
- acarbose, miglitol
- MOA: inhibit GI tract enzyme that break down complex carbohydrates, reduce monosaccharide absorbed
- Toxicities: GIT disturbances, diarrhea, pain and gas
Name two thiazolidinediones that work on the PPAR (Preoxisome proliferator activated receptor) and list their MOA, side effects and toxicities
(Works on gene transcription)
- rosiglitazone, pioglitazone
- MOA:PPAR agonist to increase gene transcription
- Increases glut-4 transporters, lipoprotein lipase, fatty acid transporters
- Side Effects: weight gain and fluid retention
- Toxicities:hepatotoxicity, congestive heart failure
Name two thiazolidinediones that work on the GLP-1 (glucagon-like peptide 1) and list their MOA, route of administration and toxicities
- Liraglutide, Exenatide
- MOA: GLP-1 receptor agonist, inhibits glucagon secretion, increases insulin secretion (incretin mimetic)
- given subcutaneously
- Common toxicities: nausea, diarrhea, vomiting
- Serious toxicities: pancreatitis, thyroid carcinoma (liraglutide), anaphylactic reaction (exenatide)
Name three thiazolidinediones that work on the DPP-4 (dipeptidyl peptidase 4) and list their MOA and toxicities
- Sitagliptin, Saxafliptin, Linagliptin
- MOA: DPP-4 inhibitor blocks breakdown of GLP-1. Increases duration of incretin, stimlulates insulin release and inhibits glucagon
- Common Toxicities: Upper respiratory infection, nasopharyngitis, headache
- Serious Toxicities: Pancreatitis, hypersensitive reactions
what is a new MOA for prevent reabsorption of glucose. (MOA)
- inhibit type 2 sodium-glucose transporter
- prevents reabsoption of glucose in kidneys and keeps blood glucose low
Which antihyperglycemic drug is a biguanide?
A. Sitagliptin B. Rosiglitazone C. Miglitol D. Metformin E. Liraglutanide
D. Metformin
Which antihyperglycemic drug is an alpha-glucosidase?
A. Sitagliptin B. Rosiglitazone C. Miglitol D. Metformin E. Liraglutanide
C. Miglitol
Which three antihyperglycemic drugs are thiazolidinediones?
A. Sitagliptin B. Rosiglitazone C. Miglitol D. Metformin E. Liraglutanide
A. Sitagliptin
B. Rosiglitazone
E. Liraglutanide
Which drug is a dipeptidhyl peptidase 4 (DPP-4) inhibitor?
A. Sitagliptin B. Rosiglitazone C. Miglitol D. Metformin E. Liraglutanide
A. Sitagliptin
Which drug is a glucagon-like peptide 1 (GLP-1) receptor agonist?
A. Sitagliptin B. Rosiglitazone C. Miglitol D. Metformin E. Liraglutanide
E. Liraglutanide
Which drug is a perixsome proliferator-activated receptor (PPAR) agonist?
A. Sitagliptin B. Rosiglitazone C. Miglitol D. Metformin E. Liraglutanide
B. Rosiglitazone
Which drug inhibits GI tract enzymes?
A. Sitagliptin B. Rosiglitazone C. Miglitol D. Metformin E. Liraglutanide
. Miglitol