oral contraceptive piils Flashcards

1
Q

what is contraception

A

prevention of pregnancy by
interfering with the normal process of ovulation, fertilization, and
implantation

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2
Q

most pop method of contraception among female adolescent

A

ocp

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3
Q

moa of ocp

A
  1. estrogins and progestins inhibit fsh and lh levels so prevent ovulation.
  2. progestin makes cervical mucus thicker
  3. progestin only prvent the thickening of endometrial lining as there constant low levels of progestins so abortificient effect.
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4
Q

effect of ocps on ovaries

A
  1. absence of normal ovarian function and morphology like corpora lutea, larger follicles.
  2. ovaries beocme smaller
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5
Q

effect of ocps on uterus

A

hypertrophy and polpys in cervix
19 nor progestins glandular atrophy and less bleeidng

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6
Q

effects of ocps on breast

A

breast enlargement adn combined pills suppress lactation

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7
Q

endocrine effects of combined pills

A
  1. prevention of the normal premenstrual rise and mid-cycle
    peaks of LH and FSH and of the rise in progesterone during
    the luteal phase;
  2. Increased globulin, ceruloplasmin, transferrin, coagulation
    factors and renin substrate,
    increased fibrinogen
    synthesis can raise the erythrocyte sedimentation rate;
  3. reduced carbohydrate tolerance
  4. decreased albumin and haptoglobulin synthesis
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8
Q

combination of combined pill

A

ethyl estradiol/mesotranol with norethisterone,
levonorgestrel, ethynodiol, desogestrel or gestodene,

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9
Q

monophasic pill routine?

A

taken for 21 days. 7 days pills (placebo) with a diff color—withdrawal bleeding after 21 days

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10
Q

natural progestins route

A

im

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11
Q

synthetic progestins route

A

peroral

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12
Q

1st gen progestins in ocps name

A

norethynodrel, norethindrone,
lynestrenol and ethynodiol diacetate.

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13
Q

1st gen ocps adeverse efeect

A

androgenic effects

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14
Q

2nd gen name

A

levonorgestrel.

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15
Q

3rd gen names

A

norgestimate,
desogestrel, gestodene.

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16
Q

4th gen progestins

A

as drospirenone, nomegestrol acetate or dienogest.

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17
Q

4th gen pills combo

A

Yasmin (ethinylestradiol
and drospirenone),
Zoely (estradiol hemihydrate
and nomegestrol acetate)
Qlaira (estradiol
valerate and dienogest).

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18
Q

drosprienone benefits

A

anti mineral corticoid, anti androgenic, decrease dysmennorhea, treat htn, missed pill window,

19
Q

diane 35 conctists of

A

ee +cyproterone acetate(3rd gen)

20
Q

diane 35 used in

A

advanced prostatic cancer-symptomatic relief,
used to treat androgen-
dependent conditions in women such as acne,

seborrhea, hirsutism, female pattern hair loss,
and hyperandrogenism due to PCOs

21
Q

monophasic form?

A

(constant dosage of both
components during the cycle)

22
Q

bi or triphasic form?

A

dosage of one or
both components is changed once or twice
during the cycle

23
Q

pop pills ?

A

no period during that time, 28 active pills all in the same colour.

24
Q

monophasic 4th gen pill eg

A

yasmin(ee+drospirernone)

25
conditions for higher estrogen pill in coc
break through bleeding (BTB)/spotting or amenorrhea, multiple cardiovascular/VTE risk factors such as >35 yr. old, obese, smoker, diabetes mellitus, hypertension,
26
conditions for low estrogen pill in coc
develops breast tenderness/enlargement or darkening of facial skin, has nausea
27
extended cycle ocps eg?
seasonique( ee+levonorgestrel) 84/7 period expected every 3 months and happens for 4 days
28
besides contraception, other indications for cocps
Menstrual related disorders such as dysmenorrhea, irregular menstruation, fibroids, endometriosis-related pain * HRT * PCOS * Hyperandrogenaemia
29
antiandrogenic effects of cocps
Oestrogen stimulates sex hormone binding globulin (SHBG) liver synthesis that in turn reduces the amount of biologically active androgen. * Decreases gonadotrophin secretion that inhibits LH- related testosterone production by theca cells in the ovaries. * Progestins block 5α-reductase activity, and decrease testosterone receptor expression and gonadotrophin (FSH, LH) synthesis. * Both components of COCPs lower the levels of adrenocorticotropic hormone (ACTH) that in consequence has inhibitory effect on adrenal androgenesis (dehydroepiandrosterone and dehydroepiandrosterone sulphate production
30
mild se of cocps
Nausea, mastalgia, breakthrough bleeding, and edema. Increases in ESR bec of high fibrinogen levels Headache is mild and often transient.
31
moderate se
breakthorugh bleeding esp with pops. made better with triphasic drugs Weight gain is more common with the combination agents containing androgen-like progestins Increased skin pigmentation Acne may be exacerbated by agents containing androgen-like progestins Hirsutism may also be aggravated by the “19- nortestosterone” derivatives Vaginal infection
32
severe se of cocps
Venous thromboembolic disease, mi, increased risk of breast cancer and cervical cancer dec risk of endometrial and ovarian cancer Gastrointestinal disorders Cholestatic jaundice and cholecystitis * Depression
33
cocp and progestin only pills metabolized by
cytochrome p450 in the liver
34
what drugs decrease the efficacy of ocps
enzyme-inducing drugs suchas rifampicin and rifabutin, carbamazepine, phenytoin. antibiotics such as amoxicillin, cause failure of the combined pill. these drugs increase the clearance of ocps pills by the cytochrome p450 enzyme
35
absolute contraindications of ocps
pregnancy; * thrombo-embolism; * multiple risk factors for arterial disease; * ischemic heart disease; * severe hypertension; * breast or genital carcinoma; * undiagnosed vaginal bleeding; * breast-feeding; * porphyria(p450 req heme for synthesis and thus porphyria can worsen
36
Relative contraindications
uncomplicated migraine, * cholelithiasis, * hypertension, * dyslipidemia, * Diabetes mellitus, varicose veins, * severe depression, * long-term immobilization, sickle-cell disease, inflammatory bowel disease.
37
pops consists of
norethisterone, levonorgestrel or ethynodiol or drosiperinone
38
pops should be taken
at the same time everyday,taken continously w/o break 3-hour progestogen-only pill must be taken within 3 hours of the same time each day – for example Norgeston and Noriday * 12-hour progestogen-only pill (desogestrel pill, such as Cerazette) must be taken within 12 hours of the same time each day. Offers an alternative when oestrogens are contraindicated
39
long acting pops?
medroxyprogesterone acetate (DMPA) every 3 months. This is effective and safe. However, menstrual irregularities are common, and infertility may persist for many months after cessation of treatment. Levonorgestrel implanted subcutaneously in non- biodegradable capsules. It avoids first-pass metabolism. The capsules release their progestogen content slowly over 5 years. Irregular bleeding and headache are common.
40
emergency cops?
Levonelle Contains high dose progesterone (levonorgesterel)
41
levonelle taken when post coitus?
1500mcg tablet taken as soon as possible after unprotected intercourse (up to 72 hours after) * Preferably within 12 hours, no later than 72 hours
42
levonelle se
nause and vommittting
43