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34 Cards in this Set
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- 3rd side (hint)
Drugs that may diminish effectiveness
of OCs |
–Carbamazepine
-Phenytoin (increase hepatic metabolism of OC) antibiotics ~PCN ~Tetracyclines Eradicate intestinal flora for enterohepatic cycling of contraceptive steroids = diminish effectiveness |
|
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Act primarily by preventing ovulation
|
Mechanism of action by which oral contraceptives (OC’s) prevent pregnancy
Nm MOA ? |
Act primarily by preventing ovulation
|
|
Act on feedback inhibition of GNrH secretion
from the hypothalamus ~Decreased gonadotropin secretion and inhibition of ovulation. |
Estrogen-Progestin
MOA |
Act on feedback inhibition of
GNrH secretion from hypothalamus ~Decreased gonadotropin secretion and inhibition of ovulation. |
|
Inhibits the mid-cycle
LH surge |
Progestin
Inhibits |
mid-cycle ....
LH surge |
|
Decreases FSH
|
Estrogen
MOA |
Decreases FSH
(therefore decreases maturation of follicle) |
|
Constant in all
monophasic biphasic most triphasic contraceptive. |
Estrogen content
|
|
|
-acne vulgaris/ lesions
-manage dysmenorrhea |
Other clinical indications for
Estrogen-Progestin combinations besides contraception. Nm them 2ct |
-acne vulgaris/ lesions
-manage dysmenorrhea |
|
~Breast enlargement
~Cyclic Wt Gain ~Dizziness ~Dysmenorrhea ~Edema ~HA ~Irritability ~N/V |
Effects of:
~Estrogen Excess A/E 8ct |
~Breast enlargement
~Cyclic Wt Gain ~Dizziness ~Dysmenorrhea ~Edema ~HA ~Irritability ~N/V |
|
~Acne
~Depression ~Fatigue ~Hirsutism ~Libido Changes ~Oily Skin ~Weight Gain |
Effects of
Progestin Excess S/E 6ct |
~Acne
~Depression ~Fatigue ~Hirsutism ~Libido Changes ~Oily Skin ~Weight Gain |
|
~DM
~Gallstones ~HTN ~MI ~Stroke ~Thromboembolic Complications |
Less frequent
but more serious adverse effects of ~OC-s A/E 6ct |
~DM
~Gallstones ~HTN ~MI ~Stroke ~Thromboembolic Complications |
|
Greater risk of thromboembolic complications
should use another form of contraceptives Pt Contraindicators AGE Acivity |
Smokers over 35 yo
Risk of what A/E? |
Greater risk of
thromboembolic complications |
|
Contraindicated for women with:
~Breast CA ~CAD (hx of) ~Hepato Dz ~Gallbladder Dz ~MI (hx of) ~Reproductive Tract CA ~Thromboembolic Dz |
Estrogen OC's
Contraindicated for women with: |
~Breast CA
~CAD (hx of) ~Hepato Dz ~Gallbladder Dz ~MI (hx of) ~Reproductive Tract CA ~Thromboembolic Dz |
|
Contraindicated for those W:
~Active Breast CA ~Endometrial CA ~Ovarian CA |
OCs
Contraindications 3ct |
~Active Breast CA
~Endometrial CA ~Ovarian CA |
|
Studies show reduced incidence for
~Ovarian Ca ~Endometrium Ca but high dose estrogen preps associated w increased risk of ~Breast CA |
OC use
oral contracept |
reduced incidence for
~Ovarian Ca ~Endometrium Ca but high dose estrogen preps associated w increased ris of ~Breast CA |
|
other clinical indications for
~Estrogen-Progestin Combos besides contraception: ~Manage Dysmenorrhea ~Good for acne What Rx? |
~Combination OC
~Good for acne – Desogestrel (least androgenic) Rx Nm that is Bad for acne:? |
– Norgestrel (most androgenic) |
|
Highly Androgenic
|
Norgestrel
Is Highly what? |
Highly Androgenic
1. producing masculine characteristics. 2. pertaining to an androgen. |
|
Drugs(2ct)
increase the hepatic metabolism of OCs thus reducing plasma levels |
~Carbamazepine
~Phenytoin A/E is what? |
increase the hepatic metabolism of OCs
|
|
Antibiotics that eradicate intestinal flora involved in the enterohepatic cycling of OC
|
Penicillins
tetracyclines |
|
|
~Norethindrone minipills
~subdermal implants ~IUDs ~Class of Hormone? ~That release (Rx Nm) long acting IM injections of ~medroxyprogesterone acetate |
Progesterone-Only
Contraceptives ~Levonorgestrel Nm Them? |
~Norethindrone minipills
~Subdermal Implants ~IUDs (They Release) ~levonorgestrel Long acting IM Injections of ~Medroxyprogesterone Acetate |
|
Mechanisms by which
~Progestin-only contraceptives prevent pregnancy |
Decrease frequency of gnrh pulse generator
to blunt LH surge What Rx? does what? |
Mechanisms by which
~Progestin-only contraceptives ~ thickens cervical mucus & ~slows endometrial growth ~Thinning Endometrium ~Prevent pregnancy |
|
What OC to use?
Smoker Older woman Hormone/Rx is contraindicated |
Progestin only
Estrogen contraindicated Nm contraindications 3ct when to use this Rx 3ct Contras.... |
Smoker
Older woman Estrogen is contraindicated |
|
Amenorrhea
Ectopic Preg (Increased Risk) Frequent Spotting Irregular Menses Most common problems –w this Rx |
Progestin only
4ct Most common problems – |
Amenorrhea
Ectopic Preg (Increased Risk) Frequent Spotting Irregular Menses |
|
Used as an emergency postcoital contraceptive
when no other contraceptives have been in use |
Levonorgestrel (Plan B)
|
|
|
Time-limitation for
~Levonorgestrel (Plan B) |
Still effective up to 120 hours
What Rx |
~Levonorgestrel
(Plan B) |
|
DMPA injection disadvantages
3ct |
~Decreased bone density
~Irregular Bleeding ~Irregular Menses... (...up to 1 year after) disadvantages of: |
DMPA injection
|
|
Does not affect bone density like DMPA
but May cause irregular vaginal bleeding Depo-Provera Depot medroxyprogesterone acetate |
Implant
Reason to use it 1ct AE 1ct |
Does not affect bone density like DMPA
but May cause irregular vaginal bleeding |
|
Not for women > 198 lbs.
|
Patch (combination)
|
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Efficacy
Mechanism of action Systemic side effects are similar to those associated with oral contraceptives. In addition users may experience an ~Increased incidence of vaginal discharge. |
Ring
Efficacy Mechanism of action Systemic side effects Oral Contraceptives. In addition users may experience an |
****
same as OCs ~Increased Vaginal Discharge. |
|
Thought to involve either spermicidal or inhibitory effects on sperm capacitation and transport.
|
Mechanism of action of
IUDs |
|
|
If the string is not visible ....
Pt wants to continue pregnancy..... |
Pt should be informed of serious risk of sepsis & poss death with such pregnancies
IUDs |
|
|
Relieve pain of :
endometriosis adenomyosis Endometrial protection for women taking Estrogen Therapy |
IUD-Progestin
-Relieve pain of : -Endometrial protection for women taking |
endometriosis
adenomyosis Estrogen Therapy |
|
Is the ring
estrogen or progesterone based? |
Combination
|
|
|
May be optimal method for women with
~Breast CA ~Breast feeding ~DM ~Dysmenorrhea ~Hepatic Dz ~Menorrhagia ~Thromboembolia |
IUD
(Progestin Only) Optimal Indications for: 7ct May be optimal method for women with |
~Breast CA
~Breast feeding ~DM ~Dysmenorrhea ~Hepatic Dz ~Menorrhagia ~Thromboembolia |
|
Indications:
Medical termination of pregnancy thru 49th day (7Wks) of Gestation. Nm Rx? MOA causes breakdown of endometrium (decidua) which causes detachment of blastocyst. Adverse Effects: -Anorexia -Nausea -Vomiting -Abd Pain -Fatigue -Uterine Bleeding (heavy ) |
Mifepristone
~Indications: (Rules of Use) ~MOA: ~Adverse Effects (6ct): |
-Medical termination of preg thru 49th day (7wks)
of Gestation. -Causes breakdown of endometrium (decidua) which causes detachment of blastocyte -Anorexia -Nausea -Vomiting -Abd Pain -Fatigue -Uterine Bleeding (heavy ) |