Oral Contraceptives Flashcards
What’s one example of synthetic oestrogen
ethinyloestradiol
What’s the synthetic oestrogen used in emergency pills
levonorgestrel
What is the side effect of levonorgestrel?
it’s a bit androgenic, which can lead to hirsutism and acne
What are the two newer versions of progesterone
Cyproterone and drospirenone
How is cyproterone different to levonorgestrel?
it’s anti-androgenic, and can be used to treat PCOS
Which drug isdrospirenone derived from?
spironlactone (K+ sparring diuretic)
What is the most common form of contraceptive pills?
combined oral contraceptives - mixture of oestrogen and progesterone in fixed ratio
How is sequential preparation pills different to COC
It mimic the normal physiological changes in menstrual cycle to reduce side effect
When is progestogen only oral pills prescribed?
when oestrogen is contraindicated or when woman is lactating
Why can’t you take the progestogen only pills when lactating
Lactation requires low level of oestrogen. Having oestrogen will inhibit milk production
Why is progestogen only pill less effective
It does not inhibit LH every cycle, and women can still ovulate
Is OC-induced hypertension reversible
Yes, in women without predisposing conditions
Which OC drug has the highest risk for thromboembolism?
cyproterone
T/F Smoking + OC pills = suicide
True
