Antidiabetic Drugs Flashcards
Glipizide (Glucotrol)
Functional Classification
Antidiabetic
Glipizide (Glucotrol)
Mechanism of Action
Causes functioning beta cells in pancreas to release insulin; leading to drop in blood glucose levels; may improve insulin binding to insulin receptors or increase the number of insulin receptors with prolonged administration; may also reduce basal hepatic glucose secretion; not effective if patient lacks functioning beta cells
Glipizide (Glucotrol)
Uses
Type 2 diabetes mellitus
Glipizide (Glucotrol)
Contraindications
Hypersensitivity to sulfonylureas, type 1 diabetes, diabetic ketoacidosis
Glipizide (Glucotrol)
Side Effects
CNS: Headache, Weakness, Dizziness, Drowsiness, tinnitus, fatigue, vertigo
ENDO: HYPOGLYCEMIA
GI: HEPATOTOXICITY, CHOLESTATIC JAUNDICE, nausea, vomiting diarrhea, heartburn
HEMA: LEUKOPENIA, THROMBOCYTOPENIA, AGRANULOCYTOSIS, APLASTIC ANEMIA; increased AST, ALT, alk phos; PANCYTOPENIA, HEMOLYTIC ANEMIA
INTEG: rash, allergic reactions, pruritus, urticaria, eczema, photosensitivity, erythema, allergic vasculitis
Glipizide (Glucotrol)
Nursing Considerations
ASSESS:
- HYPO/HYPERGLYCEMIC REACTION that can occur soon after meals; for severe hypoglycemia give IV D50W, then IV dextrose solution
- Blood Glucose, A1c levels during treatment to determine diabetes control
- Blood Dyscrasias: CBC at baseline and throughout treatment; report decreased blood count
Glipizide (Glucotrol)
Overdose Treatment
Glucose 25g IV via dextrose 50% sol, 50ml, 1mg glucagon, or carbohydrate depending on severity
Human Insulin Lispro (Humalog)
Type
Rapid Acting
Human Insulin Lispro (Humalog)
Onset
0.5-1 hr
Human Insulin Lispro (Humalog)
Peak Action
2-4 hr
Human Insulin Lispro (Humalog)
Nursing Implications
Not to be given IV
Give within 15 min of a meal
Human Insulin Lispro (Humalog)
Insulin Overdose Treatment
Glucose 25g IV, via dextrose 50% sol, 50ml or glucagon 1mg
Insulin Aspart (NovoLog) (Type)
Rapid Acting
Insulin Aspart (NovoLog) (Onset)
5 to 15 min
Insulin Aspart (Novolog) (Peak Action)
0.75 to 1.5 hr
Insulin Aspart (NovoLog) (Nursing Implications)
Not to be given IV
Give within 15 min of a meal
Insulin Aspart (NovoLog) (Insulin Overdose Treatment)
Glucose 25g IV, via dextrose 50% sol, 50ml or glucagon 1mg
Glipizide (Glucotrol)
Chemical Classification
Sulfonylurea (2nd generation)
Regular Insulin (Human) (Type)
Short Acting
Regular Insulin (Human) (Peak Action)
2 to 3 hr
Regular Insulin (Human) (Nursing Implications)
Regular insulin may be given IV
Regular Insulin (Human) (Insulin Overdose Treatment)
Glucose 25g IV, via dextrose 50% sol, 50ml or glucagon 1mg
Regular Insulin (Human) (Onset)
30 to 60 min
Isophane insulin (NPH) (Onset)
1 to 2 hr
Isophane Insulin (NPH) (Peak Action)
6 to 12 hr
Isophane Insulin (NPH) (Nursing Implications)
Not to be given IV
Isophane Insulin (NPH) (Insulin Overdose Treatment)
Glucose 25g IV, via dextrose 50% sol, 50ml or glucagon 1mg
Insulin Glargine (Lantus) (Type)
Long acting
Insuline Glargine (Lantus) (Onset)
1.1 hr
Insulin Glargine (Lantus) (Peak Action)
5hr (some sources say there is no peak)
Insulin Glargine (Lantus) (Nursing Implications)
Not to be given IV
Recommended to give once daily, acts as basal insulin
Insulin Glargine (Lantus) Insulin Overdose Treatment)
Glucose 25g IV, via dextrose 50% sol, 50ml or glucagon 1mg
Metformin
Functional Classification
Antidiabetic, oral
Metformin
Chemical Classification
Biguanide
Metformin
Mechanism of Action
Inhibits hepatic glucose production and increases sensitivity of peripheral tissue to insulin
Metformin
Uses
Type 2 diabetes mellitus
Metformin
Contraindications
Hypersensitivity; hepatic disease; creatinine >1.5mg/ml (males), >/= 1.4 (females); alcoholism; cardiopulmonary disease; acidemia; acute MI; cardiogenic shock; diabetic ketoacidosis; metabolic acidosis
Metformin
Side Effects
CNS: Headache, Weakness, Dizziness, Drowsiness, tinnitus, fatigue, vertigo, Agitation
CV: HEART FAILURE
ENDO: LACTIC ACIDOSIS, hypoglycemia
GI: Nausea, Vomiting, Diarrhea, heartburn, anorexia, metallic taste
HEMA: THROMBOCYTOPENIA, decreased vit B12 levels
INTEG: rash
Metformin
Nursing Considerations
ASSESS:
- HYPOGLYCEMIC REACTIONS (sweating, weakness, dizziness, anxiety, tremors, hunger); hyperglycemic reactions soon after meals; these occur rarely with product, may occur when product combined with sulfonylureas
- CBC (baseline, q3mo) during treatment check LFTs periodcially, AST, LDH, renal studies: BUN, creatinine during treatment; glucose, A1c; folic acid, vit B12 q1-2yr
- LACTIC ACIDOSIS: malaise, myalgia, abdominal distress; risk increases with age, poor renal function; monitor electrolytes, lactate, pyruvate, blood pH, ketones, glucose
PERFORM/PROVIDE:
-Conversion from other oral hypoglycemic agents; change may be made without gradual dosage change; monitor serum glucose, urine ketones tid during conversion
Pioglitazone (Actos)
Functional Classification
Antidiabetic; oral
Pioglitazone (Actos)
Chemical Classification
Thiazolidinedione
Pioglitazone (Actos)
Mechanism of Action
Specifically targets insulin resistance; an insulin sensitizer; regulates the transcription of a number of insulin-responsive genes
Pioglitazone (Actos)
Uses
Type 2 diabetes mellitus
Pioglitazone (Actos)
Contraindications
Breastfeeding, children, hypersensitivity to thiazolidinedione, diabetic ketoacidosis, CHF
Pioglitazone (Actos)
Side Effects
CNS: Headache
CV: MI, HEART FAILURE, DEATH (GERIATRIC PATIENTS)
ENDO: hypo/hyperglycemia
MISC: Sinusitis, Upper Respiratory Tract Infection, Pharyngitis, HEPATOTOXICITY, edema, weight gain, anemia, macular edema; RISK OF BLADDER CANCER (USE >1yr)
MS: RHABDOMYOLYSIS
Pioglitazone (Actos)
Nursing Considerations
ASSESS:
- For CHF: excessive/rapid weight gain >5lb, dyspnea, edema; may need to be reduced or discontinued
- RHABDOMYOLYSIS: muscle pain, increased CPK, weakness, swelling of affected muscles; if these occur and if confirmed by CPK, product should be discontinued
- HYPOGLYCEMIC REACTIONS: sweating, weakness, dizziness, anxiety, tremors, hunger; hyperglycemic reactions soon after meals (rare); do not give with NYHA class III/IV heart failure
- Check LFT’s periodically: AST, LDH; do not start treatment in active heart disease or if ALT>2.5x upper limit of normal; if treatment has already begun, follow closely with continuing ALT levels; if ALT increases to >3x upper limit of normal, recheck ALT as soon as possible; if ALT remains >3x upper limit of normal, discontinue
- FBS, glycosylated HbA1c, plasma lipids/lipoproteins, BP, body weight during treatment
- CBC with differential prior to and during therapy; more necessary in those with anemia
PERFORM/PROVIDE:
-Conversion from other oral hypoglycemic agents; change may be made with gradual dosage change; monitor serum glucose during conversion
Repaglinide
Functional Classification
Antidiabetic
Repaglinide
Chemical Classification
Meglitinide
Repaglinide
Mechanism of Action
Causes functioning beta-cells in pancreas to release insulin, thereby leading to a drop in blood glucose levels; closes ATP-dependent potassium channels in the beta-cell membrane; this leads to the opening of calcium channels; increased calcium influx induces insulin secretion
Repaglinide
Uses
Type 2 diabetes
Repaglinide
Contraindications
Hypersensitivity to meglitinides; diabetic ketoacidosis, type 1 diabetes
Repaglinide
Side Effects
CNS: Headache, Weakness, paresthesia
ENDO: HYPOGLYCEMIA
GI: nausea, vomiting, diarrhea, constipation, dyspepsia
INTEG: rash, allergic reactions
MISC: chest pain, UTI, allergy
MS: back pains, arthralgia
RESP: URI, sinusitis, rhinitis, bronchitis
Repaglinide
Nursing Considerations
ASSESS:
-HYPO/HYPERGLYCEMIC REACTION, which can occur soon after meals: dizziness, weakness, headache, tremor, anxiety, tachycardia, hunger, sweating, abdominal pain, A1c, fasting, postprandial glucose during treatment
Repaglinide
Overdose Treatment
Glucose 25g IV via dextrose 50% solution, 50ml or 1mg glucagon
Sitagliptin
Functional Classification
Antidiabetic, oral
Sitagliptin
Chemical Classification
Dipeptidyl-peptidase-4 inhibitor (DPP-4 inhibitor)
Sitagliptin
Mechanism of Action
Slows the inactivation of incretin hormones; improves glucose homeostasis, improves glucose-dependent insulin secretion, lowers glucagon secretions, and slows gastric emptying time
Sitagliptin
Uses
Type 2 diabetes mellitus as monotherapy or in combination with other antidiabetic agents
Sitagliptin
Contraindications
Hypersensitivity, diabetic ketoacidosis (DKA)
Sitagliptin
Side Effects
CNS: Headache
ENDO: hypoglycemia
GI: Nausea, Vomiting, abdominal pain, diarrhea, PANCREATITIS, constipation
MISC: Peripheral Edema
SYST: ANAPHYLAXIS, STEVENS-JOHNSON SYNDROME, ANGIOEDEMA
Sitagliptin
Nursing Considerations
ASSESS:
- HYPOGLYCEMIC REACTIONS: sweating, weakness, dizziness, anxiety, tremors, hunger; hyperglycemic reactions soon after meals
- SERIOUS SKIN REACTIONS: swelling of face, mouth, lips, dyspnea, wheezing
- PANCREATITIS: severe abdominal pain, nausea, vomiting; discontinue product
- RENAL STUDIES: BUN, creatinine during treatment
- Glycosylated hemoglobin A1c; monitor blood glucose (BG) as needed
PERFORM/PROVIDE:
-Conversion from other antidiabetic agents; change may be made with gradual dosage change
Isophane insulin (NPH) (Type)
Intermediate Acting