COMBINED HORMONAL CONTRACEPTION (CHC)

Question 1

FORMULATIONS

types of CHC

Answer 1

• tablets
• patches
• vaginal rings

Question 2

who is CHC not given to

Answer 2

50+ as safer options are available

Question 3

CHC health benefits

Answer 3

• reduced risk of ovarian, endometrial and colorectal cancer
• aligns bleeding pattern
• reduces dysmenorrhea and menorrhagia
• manages symptoms of polystic ovaries, endometriosis and premenstrual syndrome
• improves acne
• reduce menopause symptoms
• maintains bone density in peri-menopausal < 50yr

Question 4

when to avoid CHC

unsuitable if any of these risk factors

Answer 4

• 35yr who smokes
• hypertension
• multiple risk factors for cardiovascular; smoking, hypertension, BMI > or = 30, dyslipidemia, diabetes
• migraine with aura
• new onset migraine w/o aura during use of CHC

Question 5

what are the 2 types of preparations of CHC

Answer 5

• monophasic (fixed amount of oestrogen and progestogen)
• multiphasic (varying amounts of ^^)

Question 6

examples of oestrogen used in CHC

Answer 6

• ethinylestradiol
• mestrariol
• estradiol

Question 7

who experiences withdrawal bleed and why

Answer 7

women on 21DY regimen have a monthly withdrawal bleed during the 7DY hormone free interval