Estrogens Flashcards

(45 cards)

1
Q

Estrogen preps

A

Natural- estradiol
Semisynthetic (steroidal)
Synthetic (non steroidal) - DES

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2
Q

Oral but first pass with low bioavailability

A

Estradiol

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3
Q

Fat soluble so stored in adipose with high bioavailability

A

Ethinylstradiol orally
From mestranol

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4
Q

Also effective orally but not a steroid

A

DES

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5
Q

Enhances the coagulability of blood

A

Estrogen- increasing levels of factors 2 7 9 and 10

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6
Q

Added to estrogen to decrease the risk of endometrial cancer

A

Progesterone

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7
Q

Main use of progesterone

A

Oral contraception alone or with estrogen
Dysmenorrhoea and amenorrhoea

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8
Q

Progesterone in amenorrhea

A

On the 15th to 25th day (take estrogen for 25 days)

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9
Q

Progesterone preps

A

Natural - Hydroxyprogesterone caproate
Synthetic -

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10
Q

Rapidly metabolised so given as oily IM injection (or pellets or microcrystal implants)

A

Hydroxyprogesteron caproate

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11
Q

Synthetic progesterone prep

A

Medroxy progesterone (orally/ IM)- progesterone derivative
Norethindrone and norgestrel (orally/ SC)- nortestosterone derivatives

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12
Q

Weal androgenic effect progesterone

A

Because nortestosterone derivatives some of them

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13
Q

Anti estrogen (SERM)

A

Chlomiphene citrate - ovulation inducing
Tamoxifen
Raloxifene

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14
Q

Estrogen synthesis inhibitors

A

Aromatase inhibitors for extra adrenaline sources of estrogen in breast, liver, fat, skin, muscle :
Steroidal (suicidal) exemestane
Non steroidal (binds reversibly) letrozole

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15
Q

Ovulation inducing agents

A

Chlomiphene citrate - blocks hypothalamic ER so no usual negative feedback increasing FSH and all the estrogen
Human menopausal gonadotropins
Metforming in PCOs 50 percent
Letrozole (NS aromatase inhibitor)

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16
Q

Must be followed by HCG with LH activity only

A

Human Menopausal Gonadotropins

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17
Q

Antiprogestrones

A

Mifepristone
Danazol

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18
Q

Used as postcoital contraceptive with prostaglandin analogue misoprostol either orally or intravaginally

A

Mifrepristone

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19
Q

Danazol

A

Weak androgen, anti estrogen, anti progesterone

20
Q

Used in ttt of endometriosis and fibrocystic breast disease

21
Q

Androgen prep

A

Natural - androsterone and testosterone
Synthetic- test. propionate and methyl test.

22
Q

Doesn’t require active form of test.

23
Q

Anti androgens

A

Finasteride
Flutamide and cyproterone
Spironolactone

24
Q

Androgens themselves not given orally but…

A

Their anti androgens (eg Fiansteride) can

25
Inhibits co version to DHT
Finasteride through inhibition of 5 alpha reductase
26
Competes with test. receptors
Flutamide and cyproterone
27
Competes with FHT receptors
Spironolactone (also reduces 17 alpha hydroxylase so no test. at all and no more hirsutism in women)
28
Anabolic steroids
Nandrolone Methandrostenolone
29
GnTH analogues to inhibit gonadotropin release because not pulsatile
Leuprolide (IV SC or nasal spray)
30
Somatostatin analogue
Octreotide (longer half life)
31
Somatotropin works through
Production of somatomedins
32
FSH nad LH
HMG
33
LH only
HCG
34
Results in Hyperprolactinemia
Dopamine agonists like metoclopramide
35
Treats Hyperprolactinemia
D2 agonists like Cabergoline and Bromocriptine
36
Vasopressin analogue that's longer acting with minimal activity at V1 receptor
Desmopressin (DI)
37
Oxytocin derivative
Syntocinon
38
If only vaginally atrophy
Add vaginal estrogen
39
Main uses estrogen
Contraception Post menopausal hormone therapy Replacement therapy
40
Advantage of non steroidal over steroidal
No androgenic side effect
41
No conversion of androgen to DHT so no effect on
Prostate Hair follicles
42
Given orally to reduce BPH
Finasteride - no DHT conversion
43
Treats cancer prostate and hirsuitism
Flutamide and cyproterone - competes for testosterone receptors
44
Ttt of nocturnal enuresis
Desmopressin
45
Weirdo syntocinon uses
Induction of labour Control of post partum hemorrhage Impaired milk ejection