Endocrine Pharm Flashcards

1
Q

What are the treatment strategies for Type 1 diabetes, Type 2 diabetes, gestational diabetes

A

Type 1: low carb diet, insulin replacement

Type 2: dietary modification and exercise for weight loss; oral agents, non-insulin injectables, insulin replacement

Gestational DM: dietary modifications, exercise, insulin replacement if lifestyle modification fails.

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2
Q

Insulin can be broken down into rapid acting, short acting, intermediate acting, and long-acting. List them out

A

Rapid acting: Aspart, Glulisine, Lispro
Short acting: Insulin
Intermediate: NPH
Long acting: Detemir, Glargine

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3
Q

What’s the mech of action of insulin?

A

binds insulin receptor (tyrosine kinase activity).
Liver: increases glycogenesis
Muscle: increases glycogenesis and protein synthesis; increases K+ uptake
Fat: increases TG storage

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4
Q

Which insulin do you give to establish basal glucose control?

A

Insulin, long acting like detemir and glargine

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5
Q

Which insulin do you give when someone has diabetic ketoacidosis?

A

regular insulin

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6
Q

Which insulin to give to treat hyperkalemia, stress hyperglycemia?

A

regular insulin

for hyperkalmeia, add glucose

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7
Q

Biguanides = metformin can decrease gluconeogensis, increase glycosis, and increase peripheral glucose uptake (increasing insulin sensitivity). It’s oral and first-line in type 2 DM, can lead to modest weight loss. What are some side effects?

A
  • GI upset

- lactic acidosis (therefore, contraindicated in renal insufficiency)

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8
Q

There are 2 generations of sulfonylureas to treat type 2 diabetes. How do they work?

A

close K+ channels in beta-cell membrane –> cell depolarizes –> insulin release via increase Ca2+ influx

used to stimulate release of endogenous insulin in type 2

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9
Q

Can metformin and sulfonylureas be used to treat Type 1?

A

metformin can be used in type 1 but sufonylureas cannot because require some islet function.

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10
Q

List the 1st and 2nd generation sulfonylureas and their respective side effects.

A

-both have increase risk of hypoglycemia in renal failure

first generation: chlorpropamide, tolbutamide = di-sulfiram like effects

second generation: glimepiride, glipizide, gylburide = hypoglycemia; also contraindicated in liver and renal failure b/c metabolized by liver and excreted by kidneys

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11
Q

What do the glitazones/thiazolidinediones do? TOxicities?

A

Pioglitazone, Rosiglitazone increases insulin sensitivity in peripheral tissue by binding to PPAR-y nuclear tx regulator. It is used as monotherapy in type 2 DM or combined with another oral hypoglycemic drug

toxicities: weight gain, edema, hepatotoxicity, heart failure, increase risk of fractures

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12
Q

GLP-1 analogs increase insulin, and decrease glucagon release for type 2 diabetes. List the 2 drugs and 3 side effects.

A

exenatide, liraglutide

nausea, vomiting, pancreatitis

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13
Q

DPP-4 inhibitors increase insulin and decrease glucagon release. List the 3 and their side effects

A
  • linagliptin
  • saxagliptin
  • sitagliptin

mild urinary or respiratory infections

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14
Q

What is the amylin analog? What does it do. What are side effects?

A

Amylin analog named pramlinitide decreases gastric emptying and decreases glucagon, used in type 1 and 2 diabetes.

Side effects: hypoglycemia, nausea, diarrhea

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15
Q

What is the SGLT-2 inhibitor? what does it do?

A

Canagliflozin blocks reabsorption of glucose in PCT for type 2 DM; can cause glucosuria, UTIs, vaginal yeast infections (b/c increase glucose passing)

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16
Q

What are the 2 a-glucosidase inhibitors? What do they do?

A

Acarbose, miglitol inhibit intestinal brush-border alpha-glucosidase to decrease glucose spike after meal b/c of delayed carbohydrate hydrolysis and glucose absorption.

Used as monotherapy or combined for Type II

Side effects: GI

17
Q

What can you use to treat the exothalmpos present in graves?

A

steroids b/c exophathmos is due to infiltration of lymphocytes

18
Q

Proplthiouracil and methimazole are used to treat hyperthyroidism. Explain mech of action. Which one also blocks peripheral conversion and can be used in pregnancy while the other cannot?

A

they block thyroid peroxidase, inhibiting the oxidation of iodine and the organification (coupling) of iodine –> inhibition of thyroid hormone synthesis

propylthiouracil also blocks 5’-deiodinase decreasing peripheral conversion of T4 –> T3. Propylthiouracil can also be used in pregnancy while methimazole is a teratogen that can cause aplasia cutis (absence of portion of skin)

19
Q

List toxicities assoc with methimazole and propylthiouracil

A
  • skin rash
  • agranulocytosis (propylthiouracil more so than methimazole)
  • aplastic anemia
  • hepatotoxicity (propylthiouracil)
  • teratogen (methimazole)
20
Q

Levothyroxine (T4) and triiodothyronine (T3) can be used to treat hypothyroidism, myxedema and can be used off label as weight loss supplements. What are 4 side effects

A
  • tachycardia
  • heat intolerance
  • tremors
  • arrhythmias
21
Q

List the 2 ADH antagonists. What can they be used for?

A

Conivaptan, tolvaptan

-used in SIADH by blocking ADH at V2 receptors (Gs-coupled receptors)

22
Q

Growth hormone can be used for which 2 conditions?

A

GH deficiency

Turner syndrome

23
Q

What are the effects of oxytocin?

A

stimulates labor, uterine contractions, milk let-down, and controls uterine hemorrhage

24
Q

List the 5 conditions octreotide can be used for

A
  • acromegaly
  • VIPoma
  • carcinoid syndrome
  • glucagonoma
  • esophageal varices
25
Q

Desmopressin (synthetic ADH) can be used to treat central or nephrogenic diabetes insipidus or both?

A

central
b/c nephrogenic means the kidneys aren’t responding to ADH; not that they’re not being made while central means ADH isn’t being made by hypothalamus

26
Q

What is Demeclocycline? Can be used in? Toxicities?

A

It’s a tetracycline that is an ADH antagonist that is used for SIADH.

Can cause nephrogenic diabetes insipidus, photosensitivity, abnormalities of bone and teeth (like the other tetracycline abx)

27
Q

What is Cinacalcet? What is it used in?

A

Cinacalcet sensitizes Ca2+ sensing receptor in parathyroid gland to circulating Ca2+ leading to decreased PTH.

It is used in hypercalcemia due to primary or secondary hyperparathyroidism.

Can lead to hypocalcemia

28
Q

List symptoms of iatrogenic cushing syndrome.

A
HTN
weight gain
moon facies
truncal obesity
buffalo hump
thinning of skin
striae
osteoporosis
hyperglycemia
amenorrhea 
immunosuppression
29
Q

T/F: glucocorticoids toxicity include peptic ulcers, steroid diabetes, steroid psychosis, adrenocortical atrophy.

A

True