12 - Endocrine Flashcards
- Recombinant GH
- increases release of IGF-1 in liver and cartilage
Somatropin
- given SC
Recombinant IGF-1 agonist
- for children unresponsive to GH therapy
Mecasermin
GH receptor antagonist
- for acromegaly
Pegvisomant
Somastostatin analogue
- suppresses the release of GH, glucagon, insulin, gastrin, IGF-1, serotonin and GI peptides
- octreotide
- lanreotide
FSH analog
- Follitropin Alfa
- Follitropin Beta: recombinant FSH forms
- Menotropin (hMG)
- Urofollitropin: purified preparation from urine of postmenopausal women
LH analog
- Choriogonadotropin Alfa: recombinant hCG
- hCG: given IM
- hMG: mixtures of FSH and LH from postmenopausal womeb
- Lutropin Alfa: recombinant LH
GnRH analog
Leuprolide
- long agonist activity
Other names:
- leuprorelin
- leuprolin
Time of administration of Leuprolide to increase LH and FSH secretion
Intermittent
Time of administration of Leuprolide that reduce LH and FSH secretion
Prolonged and continuous
Remedy for apoplexy and blindness during forst few weeks of therapy (Leuprolide) and temporary exacerbation of precocious puberty or prostate CA
Flutamide
- co-administer
- androgen receptor antagonist
Synthetic human GnRH
Gonadorelin
GnRH antagonist
Ganirelix
- prevent LH surge in controlled ovulation
GnRH antagonist for prostate CA
Degarelix
Dopamine agonist
- inhibits prolactin release
Bromocriptine
SE of bromocriptine
- burning pain and warmth and redness of the extremities
Erythromelalgia
Activates oxytocin receptors
- for labor induction,
- control of postpartum hemorrhage
Oxytocin
Oxytocin receptor blocker
Atosiban
Agonist of peripheral oxytocin receptors
Carbetocin
ADH agonist relatively selective to V2
Desmopressin
ADH Antagonist at V1A and V2 receptors
Conivaptan
This may occur with rapid correction of hyponatremia
Central pontine myelinolysis
ADH antagonist that is more selective for V2
- Tolvaptan
- Lixivaptan
Thyroid drug that has 4:1 ratio of T4:T3
Liotrix
Recombinant human TSH
Thyrotropin
Thyroid drug that has faster onset but shorter half- life
Liothyronine (T3)
Compared to
Levothyroxine (T4)
- inhibits thyroid peroxidase reactions
- blocks iodine organification
- inhibits peripheral conversion of T4 to T3
PTU
- DOC for pregnant
- short FOA
- slow onset of action
- more strongly protein bound
- inhibits thyroid peroxidase
- blocks organification
Methimazole
- DOC for non-pregnant
- prenatal exposure: Aplasia Cutis Congenita
- 10x more potent
- slower excretion
Mainstay of treatment of postpartum hyperthyroidism, in particular during lactation
Methimazole
Related to choanal and esophageal atresia
Methimazole
Emits beta rays causing destruction of thyroid parenchyma
RAI 131I
- preferred for nost patients
- C/I: pregnant or nursing mothers
Patients shoulf be euthyroid or on BB before RAI
Onset of action of RAI
6-12 weeks
Max effect seen of RAI
3-6 months
Thyroid CA associated with radiation exposure
Papillary thyroid CA
- Inhibits iodine organification and hormone release
- reduce size and vascularity of thyroid gland
Potassium iodide
- Lugol’s solution/KISS
Acts through inhibition of thyroglobulin proteolysis
Potassium Iodide
- should not be used alone
- prevents radiation-infuced thyroid damage