HC Flashcards
What are the two types of COC Daily Use Oral Tablets?
Estrogens and Progestins
What COC Daily Use Tablets are Estrogens?
Ethinyl estradiol (EE, most commonly used)
Estradiol Valerate
Mestranol
What does the ethinyl group in Ethinyl Estradiol (EE) do?
Slows hepatic degradation/metabolism
Risks and S/E of Estrogens?
Irregular bleeding, breast tenderness, fluid retention, mood changes, HA and GI distress, acne, hirsutism, wt gain, systemic thromboembolism, HTN, gallbladder dx
What Progestin is used as emergency contraception?
Levonorgestrel
What do the progestins all have in common?
The piece “gest” in their name
Which Progestin is a Spironolactone-analog?
Drospirenone
What are the non-oral Progestins?
Norelgestromin (patch) Etonogestrel (vaginal ring, implantable rod) Medroxyprogesterone (MPA): IM injection Levonorgestrel (IUS) Copper IUD
What is Norelgestromin? What’s its duration?
Patch
7 days
What is Etonogestrel? What’s its duration?
Vaginal ring or implantable rod 3 weeks (ring) 3 years (rod)
What is Medroxyprogesterone (MPA)? What’s its duration?
IM injection
3 months
What is Levonorgestrel? What’s its duration?
IUS
3-5 years
What is the Copper implant? What’s its duration?
IUD
10 years
Does the copper IUD need to be removed in PID?
No
How long may emergency contraception be effects after an incident?
5 days
What do HCs do?
Suppress the hypothalamic-pit-ovarian axis -> dec GnRH secretions from the hypothalamus -> dec ovarian hormone production
this inh release of immature ovum, inc cervical mucus viscosity to impede sperm transit, produces endometrial changes
What are phasic combination COCs?
Hormones taken for 21 days (28-day packs)
Mono: fixed E and P
Bi: fixed E, low P 1st half, high P 2nd half
Tri: inc dose of E (or E + P) 3 times during cycle
Quad: dec E and inc dose of P 4 times during cycle
Non-contraceptive effects of estrogen:
Dec: cholesterol, osteoclast activity (reduced bone turnover), anti-thrombin III, bile acid
Inc: TGs, clotting factors and platelet aggregations, Na/water uptake, folate metabolism and excretion
Non-contraceptive COC HCs benefits:
Improved menstrual cycle consistency, fixes dysmenorrhea/menorrhagia, prevents ovarian cysts.. acne.. anemia.. hirsutism, reduces CA risk (ovary, endometrial, colon/rectal)
Do HCs prevent or reduce the risk of STIs and HIV?
FUCK no
Contraindications for COC:
Suspected pregnancy, vascular dx, HD, cardiomyopathy, liver dx, organ xplant rejection or organ failure, prolonged immobilization, uncontrolled HTN, DM, migraines, smoking > 15 cigs/d in pts > 35 yo
When shouldn’t you start tx?
Acute/flare of viral hep
What medications can you not give HC with?
Drugs that induce CYP3A4
- ATBs
- antivirals
- anti-seizure agents
Most affective tx? Least?
Most: implant, IUS, surgery
Least: condoms, withdrawal, fertility awareness method, spermicide