Diabetes Mellitus Management Flashcards
Adverse effects: Insulin therapy
- Hypoglycemia
- Lipodystrophy
- Rare hypersensitivity reactions
Mechanism: Insulin therapy
Binds insulin receptor (TK activity)
- Liver: Increase glucose stored as glycogen
- Muscle: Increase glycogen, protein synthesis, K+ uptake
- Fat: Increase TG storage
Mechanism: Metformin
Inhibit hepatic gluconeogenesis and action of glucagon
- Decreases gluconeogenesis
- Increases glycolysis
- Increases peripheral glucose uptake (sensitivity)
Clinical use: Metformin
First-line therapy in type 2 DM
Causes modest weight loss
Can be used in patients without islet function
Mechanism: Metformin
- GI upset
- Lactic acidosis
- Contraindicated in renal insufficiency
Mechanism: Sulfonylureas
Close K+ channel in beta cell membrane → cell depolarizes → insulin release via increased calcium influx
Clinical use: Sulfonylureas
Stimulate release of endogenous insulin in type 2 DM
Requires some islet function; useless in type 1 DM
Adverse effects: Sulfonylureas
1st generation:
Chlorpropamide
Tolbutamide
Acetohexamide
Tolazamide
- Hypoglycemia (increased risk in renal failure)
- Weight gain
- Disulfiram-like reaction (1st generation only)
Class: Chlorpropamide
1st generation sulfonylurea
Class: Tolbutamide
1st generation sulfonylurea
Class: Acetohexamide
1st generation sulfonylurea
Class: Tolazamide
1st generation sulfonylurea
Class: Glimepiride
2nd generation sulfonylurea
Class: Glipizide
2nd generation sulfonylurea
Class: Glyburide
2nd generation sulfonylurea
Mechanism: Thiazolidinediones (TZDs)
Pioglitazone
Rosiglitazone
(-glitazone)
- Increase insulin sensitivity in peripheral tissue
- Binds to PPAR-y nuclear transcription regulator
Adverse effects: Sulfonylureas
2nd generation:
Glimepiride
Glipizide
Glyburide
- Hypoglycemia (increased risk in renal failure)
- Weight gain
Clinical use: Thiazolidinediones (TZDs)
Pioglitazone
Rosiglitazone
(-glitazone)
Used as monotherapy in type 2 DM or combined with other agents (e.g., metformin)
Safe in renal impairment
Adverse effects: Thiazolidinediones (TZDs)
Pioglitazone
Rosiglitazone
(-glitazone)
- Weight gain
- Edema
- HF
- Increased risk of fractures
Class: Pioglitazone
Thiazolidinediones (TZD)
Class: Rosiglitazone
Thiazolidinediones (TZD)
Mechanism: Meglitinides
Nateglinide
Repaglinide
Stimulate postprandial insulin release by closing K+ channels on beta cell membranes (site differs from sulfonylureas)
Clinical use: Meglitinides
Nateglinide
Repaglinide
Monotherapy in type 2 DM
or
In combinated with metformin
Adverse effects: Meglitinides
Nateglinide
Repaglinide
- Hypoglycemia (increased risk with renal failure)
- Weight gain
Mechanism: GLP-1 analogs
Exenatide
Liraglutide
Dulaglutide
Albiglutide
- Increase glucose-dependent insulin release
- Decrease glucagon release
- Decrease gastric emptying
- Increase satiety
Clinical use: GLP-1 analogs
Exenatide
Liraglutide
Dulaglutide
Albiglutide
Type 2 DM
Adverse effects: GLP-1 analogs
Exenatide
Liraglutide
Dulaglutide
Albiglutide
- N/V
- Pancreatitis
- Modest weight loss
Class: Nateglinide
Meglitinide
Class: Repaglinide
Meglitinide
Class: Exenatide
GLP-1 analog
Class: Liraglutide
GLP-1 analog
Class: Dulaglutide
GLP-1 analog
Class: Albiglutide
GLP-1 analog
Mechanism: DDP-4 inhibitor
Inhibit DPP-4 enzyme that deactivates GLP-1, thereby:
- Increasing glucose-dependent insulin release
- Decreasing glucagon release
- Decreasing gastric emptying
- Increasing satiety
Clinical use: DPP-4 inhibitors
Type 2 DM
Adverse effects: DPP-4 inhibitors
Linagliptin
Saxagliptin
Sitagliptin
Alogliptin
- Urinary or respiratory tract infections
- Weight neutral
Class: Linagliptin
DPP-4 inhibitor
Class: Saxagliptin
DPP-4 inhibitor
Class: Sitagliptin
DPP-4 inhibitor
Class: Alogliptin
DPP-4 inhibitor
Mechanism: Amylin analog
Pramlintide (sc injection)
Decrease gastric emptying
Decrease glucagon
Clinical use: Amylin analog
Pramlintide (sc injection)
Type 1 DM
Type 2 DM
Adverse effects: Amylin analog
Pramlintide (sc injection)
- Hypoglycemia (in setting of mistimed prandial insulin)
- Nausea
Class: Pramlintide
Amylin analog
Mechanism: SGL2 inhibitors
Canagliflozin
Dapagliflozin
Empagliflozin
Block reabsorption of glucose in PCT
Clinical use: SGLT2 inhibitors
Canagliflozin
Dapagliflozin
Empagliflozin
Type 2 DM
Adverse effects: SGLT2 inhibitors
Canagliflozin
Dapagliflozin
Empagliflozin
- Glucosuria
- UTIs
- Vaginal yeast infections
- Hyperkalemia
- Dehydration (orthostatic hypotension)
- Weight loss
Class: Canagliflozin
SGLT2 inhibitor
Class: Dapagliflozin
SGLT2 inhibitor
Class: Empagliflozin
SGLT2 inhibitor
Mechanism: Alpha-glucosidase inhibitors
Acarbose
Miglitol
Inhibit intestinal brush-border alpha-glucosidases
Delayed carbohydrate hydrolysis and glucose absorption → decreased postprandial hyperglycemia
Clinical use: Alpha-glucosidase inhibitors
Acarbose
Miglitol
Type 2 DM
Adverse effects: Alpha-glucosidase inhibitors
Acarbose
Miglitol
- GI disturbances